Cadillac STS Car Insurance: How Much Should You Expect to Pay?

Looking at average rates, Cadillac STS drivers normally pay about $140 monthly for insurance. Check out our latest guide to see how much auto insurance companies might charge you to insure your Cadillac STS.

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Quick Facts
  • A Cadillac STS costs about the same to insure as the average car.

  • Liability car insurance for a STS comes in at around $83 per month, while full coverage generally runs about $177 a month.

  • Hugo provides the most affordable average premiums for a STS with liability only coverage offered for as cheap as $29 monthly.

STS Overview

With 2011 models starting at $50,820, the Cadillac STS is on the more expensive end of the spectrum. There are three different trim levels currently offered, so you'll be sure to find an option to fit your style.

After analyzing thousands of insurance quotes through Compare.com, we've found that Cadillac STS auto insurance rates run around $140 a month, on average. Where does that fall compared to the rest of the market?

Current Base Price$50,820
Body Style(s)Car
Trim LevelsSTS, LUXURY, LUXURY PERFORMANCE
Average Insurance Premium$140/mo.
Cheapest Insurance CompanyHugo

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How Much is Car Insurance for a Cadillac STS?

Vehicle
Liability Only
Full Coverage
Cadillac STS$83$177
All Cadillac Models$77$169
All Cars$83$177
Average Insurance Premium$81$169

You can see in the table above that compared to other vehicles on the road, Cadillac STS insurance premiums are about average. On average, STS owners can expect to pay around $83 per month for liability insurance, and about $177 monthly for full coverage, which has comprehensive and collision coverages in addition to liability (our guide, "State Minimum vs. Full Coverage", can give you more information on these different types of insurance).

Compared to other Cadillac models, the STS's insurance price is on par with the rest of the automaker's vehicle offerings. Similarly, coverage for the STS is around average with other vehicles of a similar body style, with both liability only and full coverage insurance averaging exactly the same prices as other cars.

When compared to all vehicles, regardless of model, make, or body style, the STS follows a similar pattern of having average insurance premiums.

Who has the Cheapest Car Insurance for a Cadillac STS?

Insurance Company
Average Monthly Premium
ACG$26
Hugo$29
Workmens$31
Aspire$33
AmericanAlliance$35

If you're browsing for an auto insurance policy for a Cadillac STS, you might be wondering which company offers the lowest prices. Even though prices can fluctuate quite significantly from person to person, ACG offers the lowest average rates for liability only coverage, with rates sometimes as cheap as $26 per month. With car insurance as little as $29 a month, Hugo is the next cheapest car insurance carrier.

Workmens, Aspire, and AmericanAlliance round out the rest of the top 5 list. But just because these five carriers offer the cheapest average rates doesn't necessarily mean they'll give you the best rates for your Cadillac STS.

Insurance companies take a variety of different things into consideration when calculating how much to charge you. Because every driver is different, there's only one way to ensure you get the most affordable prices, and that's by getting personalized quotes and comparing rates from a bunch of auto insurance carriers.

What Factors Affect Car Insurance Rates for a Cadillac STS?

There are a multitude of attributes that insurance companies examine to determine how much they charge for a policy -- and each company uses a different method, so there's not one carrier that's the lowest for every STS driver.

The sections below show a lot of variables car insurance carriers use to calculate rates:

Vehicle Age

Vehicle Age
Average Monthly Premium
Less than 1 YearNo Recent Models
2-3 Years$104
4-5 Years$47
6-7 Years$99
8-10 Years$86
11-14 Years$79
15 Years or Older$89

The Cadillac STS has been around for a while -- that means vehicle age can play a big role in what you end up paying for insurance. Normally, it costs more to insure newer cars because they're worth more, but as they get older, insurance costs will gradually go lower.

Since a new model has not been added to the market for at least 5 years, the STS won't really fit this trend. However, as you can see in the table above, the cheapest Cadillac STSs to insure are those that are 4 to 5 years old, while the most expensive models are STSs that are 2 to 3 years old, on average.

Your Age

How old you are makes a significant difference in how much you pay for auto insurance. Based on the information above, the youngest STS drivers pay more compared to drivers who have more experience on the road. In this case, drivers under 18 pay over three times as much as those 25 or older.

Auto insurance prices continue to decrease as you get older, with drivers aged 65 years and older making up the cheapest age group for the STS.

Your Gender

Gender
Average Monthly Premium
Male$86
Female$79

You may not know, but car insurance is usually cheaper for women than it is for men. This is because women are less likely to get into collisions and get speeding tickets, which lowers the chances of an insurance claim. The Cadillac STS sticks to the norm, where women pay about 9% less than men monthly for auto insurance.

Where You Live

State
Average Monthly Premium
California$47
Florida$121
Georgia$113
Illinois$48
New York$142
North Carolina$53
Ohio$50
Pennsylvania$58
Texas$61
Virginia$55

It may seem like common sense that factors like how old you are and what vehicle you drive play a role in your car insurance rates, but did you know that where you live can matter just as much? Since insurance is regulated on a state-by-state basis, premiums can vary quite a bit depending on what state you live in.

For example, the average Cadillac STS owner in New York pays around $142 a month for liability coverage, while on average, the same driver in California will pay less than half of that price. The chart shows average prices for the top 10 most populous states, just to give you a good idea of how much rates can change depending on where you live.

The Best Insurance Companies for Cadillac Sts Drivers

There’s more to car insurance than just price. Customer service, coverage offerings, and other factors are also worth considering.

The following companies strike a good balance between cost, customer satisfaction, policy management, and more.

State Farm: Best overall

State Farm logo
User Reviews
3.9
Our Rating
Compare.com's ratings are determined by our editorial team. The objective formula used in these reviews weighs several important factors to consider when choosing financial products and services, including customer satisfaction ratings, ease of use, and a number of other components.
4.7 /5
Liability Only
Liability-only insurance, sometimes called minimum-coverage insurance, pays for bodily injury and property damage to others in an accident the policyholder causes. It does not pay for the insured’s own damages.
$56/mo
Full Coverage
Full-coverage car insurance generally includes liability, collision, and comprehensive coverage, and may include other optional coverages such as uninsured motorist coverage. Collision covers a policyholder’s repair or replacement costs in case of an accident. Comprehensive covers damages caused by non-accident events. The average quote displayed here reflects policies with the following coverage limits: $50,000 bodily injury liability per person; $100,000 bodily injury liability per accident; $50,00 property damage liability per accident; $1,000 collision deductible; and a $1,000 comprehensive deductible.
$108/mo
3.9
A solid optionBased on 556 verified guest reviews and ratings
How drivers feel about State Farm

Customers appreciate the helpful agents and prompt claim handling, but many are unhappy with the constant rate increases, even for safe drivers. Some also reported poor customer service.

AI-generated from the text of verified reviews collected by Compare.com
Best For
How drivers feel about State Farm

Customers appreciate the helpful agents and prompt claim handling, but many are unhappy with the constant rate increases, even for safe drivers. Some also reported poor customer service.

AI-generated from the text of verified reviews collected by Compare.com
Best For
Reviews (293)
Sherry
Verified Review
Good experience
Reviewed in Florida on November 2025
Good value, less expensive than other companies.
Patricia
Verified Review
High Price
Reviewed in New York on October 2025
I'm paying $860.00 for 6 months to insure a 2025 Nissan Altima. Progressive would charge me $460.00.
Jeffrey
Verified Review
Jeff
Reviewed in New York on October 2025
Good service. Need cheaper rates.
J.D. Power
J.D. Power data measures overall customer satisfaction and claims satisfaction based on a 1,000-point scale.
657
NAIC Index
Average amount of customer complaints relative to competitors on a 0-5 scale. A lower score represents fewer complaints.
0.84
AM Best
AM Best analyzes an insurer’s financials, operating performance, business profile, and other factors to generate an opinion-based rating of a company’s financial and credit strength. Ratings range from A++ (exceptional) to D (poor).
A++
Why we picked this company

Drivers looking for a basic car insurance policy from a company with a solid reputation can find what they need from State Farm. And they can typically find their policy at a discount, so long as they are not high risk.

Pros
  • Among the best customer service satisfaction in the industry

  • 24/7 claims service with large repair network

  • Lots of available discounts

Cons
  • High rates for high-risk drivers

  • Limited coverage options

  • Higher than average customer complaints

Nationwide: Best at handling claims

Nationwide logo
J.D. Power
J.D. Power data measures overall customer satisfaction and claims satisfaction based on a 1,000-point scale.
641
Our Rating
Compare.com's ratings are determined by our editorial team. The objective formula used in these reviews weighs several important factors to consider when choosing financial products and services, including customer satisfaction ratings, ease of use, and a number of other components.
4.5 /5
Liability Only
Liability-only insurance, sometimes called minimum-coverage insurance, pays for bodily injury and property damage to others in an accident the policyholder causes. It does not pay for the insured’s own damages.
$96/mo
Full Coverage
Full-coverage car insurance generally includes liability, collision, and comprehensive coverage, and may include other optional coverages such as uninsured motorist coverage. Collision covers a policyholder’s repair or replacement costs in case of an accident. Comprehensive covers damages caused by non-accident events. The average quote displayed here reflects policies with the following coverage limits: $50,000 bodily injury liability per person; $100,000 bodily injury liability per accident; $50,00 property damage liability per accident; $1,000 collision deductible; and a $1,000 comprehensive deductible.
$178/mo
How drivers feel about Nationwide

Drivers appreciate the available discounts but dislike the high prices and lack of communication.

AI-generated from the text of verified reviews collected by Compare.com
How drivers feel about Nationwide

Drivers appreciate the available discounts but dislike the high prices and lack of communication.

AI-generated from the text of verified reviews collected by Compare.com
Reviews (6)
Ron
Verified Review
Nationwide is becoming a Chintzy Picky Company
Reviewed in Missouri on May 2025
I like Nationwide, but they have become very picky and want me to do too many repairs before they take my money and purchase insurance.
Richard
Verified Review
Ready for a Change...
Reviewed in Pennsylvania on January 2025
It seems expensive, and there's no communication with me!
Dana
Verified Review
Can't reach anyone, and they cancelled without notification
Reviewed in Nevada on January 2025
Ridiculous!
J.D. Power
J.D. Power data measures overall customer satisfaction and claims satisfaction based on a 1,000-point scale.
641
NAIC Index
Average amount of customer complaints relative to competitors on a 0-5 scale. A lower score represents fewer complaints.
0.7
AM Best
AM Best analyzes an insurer’s financials, operating performance, business profile, and other factors to generate an opinion-based rating of a company’s financial and credit strength. Ratings range from A++ (exceptional) to D (poor).
A+
Why we picked this company

Nationwide is great for people who want specialty auto coverage in addition to full-coverage options, but rates may be higher, and customer service can depend on local offices.

Pros
  • Extensive coverage options

  • Plenty of bundling and discount opportunities

  • Good reviews of local agents

Cons
  • Higher-than-average rates

  • Below-average customer service ratings

  • Potential issues with online quote tool

Erie: Best customer service

Erie Insurance logo
User ReviewsNR
Our Rating
Compare.com's ratings are determined by our editorial team. The objective formula used in these reviews weighs several important factors to consider when choosing financial products and services, including customer satisfaction ratings, ease of use, and a number of other components.
NR
How drivers feel about Erie Insurance

Drivers value the excellent coverage and quick claim responses but dislike the significant rate increases and lack of responsiveness to emails.

AI-generated from the text of verified reviews collected by Compare.com
How drivers feel about Erie Insurance

Drivers value the excellent coverage and quick claim responses but dislike the significant rate increases and lack of responsiveness to emails.

AI-generated from the text of verified reviews collected by Compare.com
J.D. Power
J.D. Power data measures overall customer satisfaction and claims satisfaction based on a 1,000-point scale.
NR
NAIC Index
Average amount of customer complaints relative to competitors on a 0-5 scale. A lower score represents fewer complaints.
NR
AM Best
AM Best analyzes an insurer’s financials, operating performance, business profile, and other factors to generate an opinion-based rating of a company’s financial and credit strength. Ratings range from A++ (exceptional) to D (poor).
NR
Why we picked this company

Erie is a great option if you live within the company’s service area, especially if you need complex or specialty coverage. But if a highly functional mobile app is at the top of your list of desirable features, you’ll need to consider other options.

Pros
  • Affordable rates, even for people with minor moving violations

  • Highly customizable policies with a wide range of add-ons and perks

  • Offers SR-22 coverage and policies to high-risk drivers

Cons
  • Limited self-service options

  • Limited features on the mobile app and website

  • Available in only 12 states

Cadillac STS Car Insurance Discounts

Whatever your car, your age, or your home state, it's always in your best interest to take advantage of as many car insurance discounts as possible when shopping around for a new policy.

Not every insurance company will offer the same discounts, but there are a few that are relatively common. These include things like:

  • Multi-policy discounts for bundling your home and auto policies with the same carrier

  • Vehicle safety discounts for having a vehicle with higher safety ratings or one with certain safety features (like anti-lock brakes or air bags)

  • Pay-in-full discounts for drivers who choose to pay their entire policy premium at once, rather than in monthly installments

  • Multi-vehicle discounts for having several cars on your auto policy

While these are just a few of the discounts auto insurance companies offer, there are countless other ways to save money on you monthly insurance bill. Sometimes, the best rates come from simply having a favorable insurance profile, which means having a clean driving record or not having any recent insurance claims.

Although you can't control every factor car insurance carriers look at to calculate prices (like some of the ones mentioned above), you can control some of them. Below are just a few of the variables you can use in your favor when it comes to cost savings:

Your Driving Record

Infractions
Average Monthly Premium
1 Accident$97
Multiple Accidents$142
1 Ticket$85
Multiple Tickets$175

You've no doubt heard ads from insurance companies posting hefty savings for responsible drivers. It shouldn't come as a surprise that if you get into a collision or get a speeding ticket, auto insurance premiums will go higher. But exactly how much will these infractions cost you?

If you look at the table above, you'll see that accidents will usually cost STS drivers more than tickets, but both will result in higher than average rates. Cadillac STS drivers with a single ticket will pay an average of $85 per month, while drivers with one accident on their record pay about $97 every month (up $14 from the $83/mo. overall average). Drivers who have multiple violations of either kind will end up paying even more.

How Much You Drive

Annual Mileage
Average Monthly Premium
0-2,500 Miles$80
2,501-5,000 Miles$76
5,001-7,500 Miles$72
7,501-10,000 Miles$84
10,000+ Miles$90

Another variable that plays a role in your insurance rates is the total amount of miles you drive. Those who drive less often have fewer opportunities to get into an accident, so they'll typically end up spending less on car insurance. Based on the table above, you can see that Cadillac STS owners who drive 10,000 miles or more pay $90 for auto insurance, while those who drive fewer than 2,500 miles a year pay an average of $80 monthly.

If you don't use your Cadillac STS that often, it may be worth considering usage-based or pay-per-mile insurance. With these kinds of plans, you pay a small base rate each month, with your final monthly bill being calculated based on how many miles you drove.

How Do Cadillac STSs Compare to Other Vehicles?

If you're thinking about making a Cadillac STS your next car, it might be helpful to do your due diligence. Car insurance is just one cost that comes with a new car purchase, but it's guaranteed to be one that's worth taking into consideration.

Check out the table below to see how the Cadillac STS stacks up:

Cadillac STS
National Average
Liability Insurance$161$81
Full Coverage Insurance$237$169
Base MSRP$50,820$35,020
Average Annual Mileage10,27611,617

With an MSRP that's a quarter more than the going rate for a new vehicle, the Cadillac STS is on the more expensive side when it comes to price. At $50,820, the STS price comes in above the national average MSRP of $35,020. A used STS will be even less expensive, since there hasn't been a new model added to the market in the last few years.

Likewise, car insurance prices run above average when compared to other vehicles on the market. Liability insurance for a Cadillac STS is about $80 per month more than average, while full coverage is over $50 more a month.

However, it is worth noting that the STS drivers tend to use their cars less than the average American driver, with only 10,276 annual miles for the average owner.

Cadillac STS Car Insurance Costs by Model Year

You've seen how different things can affect how much the average driver pays to insure a Cadillac STS. If you're in thinking about buying a new car, truck, or SUV and the STS is on your wishlist, knowing what you'll likely pay for the specific car you're looking at can be helpful as you consider your choices.

2011 Cadillac STS Car Insurance

Liability Only Avg. Premium$161
Full Coverage Avg. Premium$237
Base MSRP$50,820
Cheapest Insurance CompanyStateAuto - $25/mo.
Available TrimsLUXURY, LUXURY PERFORMANCE, STS

2011 Cadillac STS drivers can expect to pay an average of $161 per month for liability or $237 for full coverage.

With rates sometimes as little as $25 a month, StateAuto offered the cheapest policy we found for the 2011 Cadillac STS.

Want to know just how much you'll pay? Just enter your ZIP code below to get several free personalized quotes.

2010 Cadillac STS Car Insurance

Liability Only Avg. Premium$57
Full Coverage Avg. Premium$192
Base MSRP$50,385
Cheapest Insurance CompanyMetroMile - $22/mo.
Available TrimsSTS

On average, drivers who own a 2010 STS can expect to pay $57 to $192 monthly for liability only and full coverage insurance, respectively.

MetroMile offered the lowest policy we found, with rates as cheap as just $22 per month.

If you want to find the best prices for auto insurance for a 2010 Cadillac STS, enter your ZIP code below and compare multiple personalized quotes in just a few minutes.

2009 Cadillac STS Car Insurance

Liability Only Avg. Premium$70
Full Coverage Avg. Premium$192
Base MSRP$46,845
Cheapest Insurance CompanySafeco - $22/mo.
Available TrimsSTS, STS-V

You can expect full coverage for a 2009 Cadillac STS to run around $192 monthly, while liability only coverage will average about $70 a month.

Safeco has rates as low as just $22 per month for the 2009 Cadillac STS.

If you want to know just how much your rate will be, just enter your ZIP code below and get several free quotes in minutes.

2008 Cadillac STS Car Insurance

Liability Only Avg. Premium$83
Full Coverage Avg. Premium$181
Base MSRP$43,775
Cheapest Insurance CompanyInfinity - $18/mo.
Available TrimsSTS, STS-V

It costs around $83 a month for liability or $181 for a full coverage policy for the 2008 STS.

If you're looking for the lowest possible 2008 Cadillac STS insurance policy, Infinity offered the most affordable policy we found, with rates sometimes as low as $18 per month.

If you want to know exactly how much you can expect to pay for your STS, just enter your ZIP code below and get free quotes in minutes.

2007 Cadillac STS Car Insurance

Liability Only Avg. Premium$90
Full Coverage Avg. Premium$183
Base MSRP$42,390
Cheapest Insurance CompanyClearcover - $18/mo.
Available TrimsSTS, STS-V

The average cost to insure a 2007 Cadillac STS with liability only coverage is $90 monthly, while full coverage runs about $183 per month.

We found Clearcover offered the cheapest policy, with rates as low as $18 monthly.

What will your car insurance price be? Just enter your ZIP code below to get lots of free customized quotes.

2006 Cadillac STS Car Insurance

Liability Only Avg. Premium$73
Full Coverage Avg. Premium$155
Base MSRP$41,020
Cheapest Insurance CompanyACG - $20/mo.
Available TrimsSTS, STS-V

It costs around $73 a month for liability or $155 for a full coverage policy for the 2006 STS.

Looking for the most affordable policy? ACG offered liability only coverage for as little as just $20 per month.

If you want more accurate quotes of how much you can expect to pay, just enter your ZIP code below and get free quotes in minutes.

2005 Cadillac STS Car Insurance

Liability Only Avg. Premium$81
Full Coverage Avg. Premium$172
Base MSRP$40,525
Cheapest Insurance CompanyKemper - $21/mo.
Available TrimsSTS

The average cost to insure a 2005 Cadillac STS with liability only coverage is $81 monthly, while full coverage runs about $172 a month.

With premiums sometimes as cheap as $21 monthly, Kemper offered the lowest policy we found.

If you want more accurate quotes of how much you can expect to pay, get free quotes in minutes by just entering your ZIP code below.

Cadillac STS Insurance FAQs

  • Is a Cadillac STS expensive to insure?

    The cost of insurance for the Cadillac STS is about the same as insuring the average car. Liability insurance runs an average of $83 per month, while full coverage will cost you around $177.

  • How can I get the best price on car insurance for my Cadillac STS?

    The only way to make sure you're getting the cheapest price on car insurance is to check prices regularly and compare quotes from an array of carriers. Over time, your driver profile changes, so it's a good rule of thumb to review quotes every 6 months or so. Luckily, sites like Compare.com let you compare prices from a variety of companies at once, meaning you can find the lowest rates (or guarantee you already have the best deal) for free.

  • Does the color of my Cadillac STS affect my insurance premiums?

    You may have heard the old adage that red cars cost more to insure than cars of other colors, but that's simply not true. There are a whole bunch of factors auto insurance carriers think about when they calculate how much you'll pay, but your car's color is not used to make that determination.

  • Do I need to have insurance before I buy a Cadillac STS?

    You'll need to have valid insurance for your STS before you can legally drive your it off the dealership lot. Some dealerships might offer you an insurance policy as part of the car-buying process, but the best thing to do when buying a a new car is to talk with your auto insurance carrier beforehand.

  • What car insurance discounts can I get for my Cadillac STS?

    There are a ton of discounts out there when it comes to car insurance. Many of them (like "pay-in-full discounts" and "safe driver discounts") are more based on you than the vehicle you drive, but if your STS has safety features like anti-lock brakes, airbags, anti-theft systems, and other features, it may qualify for certain discounts. To learn more about which discounts you may qualify for, contact your insurance company and ask about their discounts, since they differ quite a bit from company to company.

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