For a 40-year-old driver with a clean record, Post Falls car insurance averages about $144 a month ($1,725 a year) for full coverage, based on the rates insurers had filed with state regulators as of Aug. 31, 2026. That’s 6% below the Idaho average of $153 a month. State Farm has the lowest full-coverage average among the insurers we rank, at about $101 a month.
Of the six Kootenai County cities and towns we price, Post Falls is the least expensive for full coverage. Our benchmark driver pays about $9 a month less than the Idaho average here and about $4 a month less than in Coeur d’Alene.
Post Falls sits near the Washington state line, but cars registered here are insured under Idaho’s rules and priced at Idaho rates. Our data uses its one ZIP code, 83854.
Cost data comes from the auto rates insurers file with state regulators, priced in Post Falls’ ZIP code, compiled by Quadrant Information Services and updated as new rates are filed.
Rates as of Aug. 31, 2026. Page reviewed Oct. 1, 2026.
How Much Is Car Insurance in Post Falls, ID?
Full coverage in Post Falls averages $1,725 a year, or about $144 a month, for our benchmark driver. Liability-only coverage at Idaho’s 25/50/15 minimum averages $484 a year ($40 a month), and 50/100/50 liability with comprehensive and collision averages $1,710 ($143 a month).
- Full coverage (100/300/100, $500 deductibles): $1,725 a year ($144 a month)
- 50/100/50 with $500 deductibles: $1,710 a year ($143 a month)
- Liability only (25/50/15): $484 a year ($40 a month)
- Kootenai County: $1,862 a year ($155 a month) for full coverage
- Idaho average: $1,841 a year ($153 a month) for full coverage
Cheap Car Insurance in Post Falls: Companies Compared
- Lowest average among insurers we rank, full coverage: State Farm, at about $101 a month ($1,213 a year).
- Next lowest: Farmers, at about $130 a month, then Safeco at $136.
- Lowest liability-only average among insurers we rank (25/50/15): State Farm, at about $28 a month, then Safeco and Idaho Farm Bureau, effectively tied at $32 and $33. Auto-Owners and GEICO are a little lower in our table, at about $27 each.
- Also on our list: USAA at about $67 a month, GEICO at $103, Auto-Owners at $112, Travelers at $134 and Nationwide at $136 (USAA sells only to military families).
- Most expensive in our data: Allstate, at about $198 a month, $1,162 a year more than State Farm for the same driver and car.
State Farm has the lowest full-coverage average among the five insurers in our Post Falls rate data. The recent statewide Idaho rate studies we reviewed don’t agree on which insurer is cheapest for full coverage. Leaving out USAA, which sells only to military families, GEICO, State Farm and Auto-Owners each come out first in two of the eight, and American National and Travelers in one each. For liability-only coverage at 25/50/15 limits, State Farm has the lowest average among the insurers we rank, at about $28 a month, followed by Safeco and Idaho Farm Bureau, effectively tied at $32 and $33.
Full-coverage averages by insurer in Post Falls
Monthly, for the same driver and car. Insurers marked with an asterisk in the table below aren’t in the chart.
Rates insurers filed with state regulators, compiled by Quadrant Information Services, as of Aug. 31, 2026. Benchmark 40-year-old driver, 100/300/100 with $500 deductibles.
| Insurance Company: | Minimum Liability 25/50/15 (Yearly): | Minimum Liability 25/50/15 (Monthly): | Full Coverage (Yearly): | Full Coverage (Monthly): |
|---|---|---|---|---|
| State Farm | $331 | $28 | $1,213 | $101 |
| Farmers | $603 | $50 | $1,560 | $130 |
| Safeco | $389 | $32 | $1,626 | $136 |
| Idaho Farm Bureau | $400 | $33 | $1,849 | $154 |
| Allstate | $698 | $58 | $2,375 | $198 |
| USAA (military families)* | $257 | $21 | $807 | $67 |
| GEICO* | $326 | $27 | $1,230 | $103 |
| Auto-Owners* | $320 | $27 | $1,342 | $112 |
| Travelers* | $504 | $42 | $1,613 | $134 |
| Nationwide* | $862 | $72 | $1,631 | $136 |
| Post Falls average | $484 | $40 | $1,725 | $144 |
This table uses Post Falls’ ZIP code only. See how we calculated these rates.
Your ZIP code matters
How Much More Does Better Coverage Cost in Post Falls?
Raising liability limits from 50/100/50 to 100/300/100 barely changes the average in our Post Falls data: with the same $500 deductibles, full coverage averages $1,725 a year and 50/100/50 averages $1,710. The full-coverage package doubles the per-person injury limit, triples the per-crash limit and doubles the property damage limit, and it raises uninsured and underinsured motorist coverage to 100/300. Allstate, Farmers and Safeco charge less for 100/300/100 than for 50/100/50 for our benchmark driver.
Is Car Insurance Going Up in Post Falls?
Yes, for our benchmark driver. Comparing the same insurers in the same Post Falls ZIP code, full coverage averaged $1,686 a year in rates as of Nov. 30, 2025, and $1,725 as of Aug. 31, 2026, a 2.3% increase. Allstate raised its average 5.1%, State Farm 2.9% and Farmers 2.8%, while Idaho Farm Bureau’s and Safeco’s averages were unchanged. Liability-only coverage at 25/50/15 limits rose 6.6%, led by Farmers, which raised its liability-only average 17.8%.
What Shapes Car Insurance Costs in Post Falls
Kootenai County averages about $155 a month for full coverage, the 18th-most expensive of the 32 Idaho counties we price. Farmers is the second-lowest insurer we price in Post Falls, at about $130 a month, a spot Safeco or Idaho Farm Bureau holds in every other Idaho city we publish a guide for.
Rathdrum, to the north, averages about $163 a month and Hayden, to the northeast, $152. Where you live is one of the factors Idaho insurers use, so neighboring cities can be priced differently.
How Post Falls Car Insurance Compares With Other Idaho Cities
More Idaho cities and towns are in the Idaho rates by city table, and you can compare states on our car insurance rates by state page.
Coeur d’Alene, about eight miles east, averages $148 a month, and Lewiston, about 90 miles south, $157.
What Car Insurance Is Required in Post Falls?
Drivers in Post Falls follow Idaho’s rules. Every registered vehicle must be covered by at least:
- Bodily injury liability of $25,000 per person and $50,000 per crash
- Property damage liability of $15,000 per crash
Your policy also includes uninsured and underinsured motorist coverage at the same 25/50 limits unless you reject it in writing. Our Idaho requirements guide covers how the state checks your coverage and the penalties for driving uninsured.
How to Lower Your Car Insurance Rate in Post Falls
- Compare State Farm and GEICO first. State Farm has the lowest full-coverage average among the insurers we rank in Post Falls, about $101 a month, and GEICO, marked with an asterisk in our table, is close behind at about $103.
- Quote several insurers. In our Post Falls data, the lowest and highest insurer averages are about $97 a month apart for the same driver and car.
- New to Idaho? Move your registration within 30 days. New residents have 30 days to get an Idaho driver’s license and to title and register their vehicles, with insurance from an insurer licensed in Idaho, according to the Idaho Transportation Department.
- Compare at every renewal. Since November 2025, Allstate has raised its average 5.1%, State Farm 2.9% and Farmers 2.8%, so the order in our table can shift.
- Insure your car and home together. A multi-policy discount is a common way to save, so compare Idaho home insurance rates too.
Ready to compare
How We Calculated Post Falls Car Insurance Rates
Insurers must file their rates and rating rules with each state’s insurance regulator. Quadrant Information Services uses those filings to calculate what each insurer would charge a specific driver, and InsuranceQuotes analyzes those prices. This page uses rates in effect on Aug. 31, 2026.
- Sample: five full-coverage premiums from five insurers in Post Falls’ ZIP code, plus the same number of liability-only and 50/100/50 premiums.
- Driver: a single 40-year-old driver, licensed 24 years, with good credit and no accidents or violations, driving a 2024 Toyota Camry LE they own, for personal use.
- Coverage: full coverage is 100/300/100 liability with $500 comprehensive and collision deductibles and 100/300 uninsured and underinsured motorist coverage. We also price 50/100/50 with the same deductibles, and liability-only coverage at Idaho’s 25/50/15 minimum, with 25/50 uninsured and underinsured motorist coverage and no comprehensive or collision.
- Calculation: for each insurer we take its lowest eligible price in Post Falls’ ZIP code. The overall average is the mean of those prices. Monthly figures are annual premiums divided by 12 and rounded.
- Rankings: we name a cheapest insurer only where it’s priced in that ZIP code and its lead over the next insurer isn’t so wide that it looks like an outlier. Annual prices within 3% of each other are called effectively tied.
- Rate changes: we compare the same insurer in the same ZIP code, for the same driver and coverage, in rates as of Nov. 30, 2025, and Aug. 31, 2026. All five insurers are in both sets of rates. Rate-change percentages are calculated from the annual premiums shown; other percentages use the rounded monthly figures.
- Insurers marked *: priced from recent published Idaho rate studies, scaled to our benchmark driver. They aren’t included in our averages or rankings.
- What this isn’t: a quote. These are modeled prices for one driver profile, calculated from insurers’ rate filings. Your price depends on your ZIP code, vehicle, driving record, coverage choices and discounts.
Coverage requirements come from Idaho law and the Idaho Department of Insurance. We refresh these figures when new rate data is released.
Post Falls Car Insurance FAQ
For our benchmark driver, full coverage in Post Falls averages about $144 a month ($1,725 a year) and liability-only coverage about $40 a month, based on the rates insurers had filed with state regulators as of Aug. 31, 2026. Full coverage is 6% below the Idaho average of $153 a month.
State Farm has the lowest full-coverage average in our Post Falls rate data, at about $101 a month, followed by Farmers at $130. For liability-only coverage, State Farm has the lowest average among the insurers we rank, at about $28 a month. Auto-Owners and GEICO are a little lower in our table, at about $27 each. The recent statewide Idaho rate studies we reviewed don’t agree on which insurer is cheapest for full coverage: leaving out USAA, GEICO, State Farm and Auto-Owners each come out first in two of the eight. Rates vary by driver, so compare quotes for your own car and ZIP code.
Post Falls, for our benchmark driver. Post Falls full coverage averages about $144 a month and Coeur d’Alene about $148, a difference of about $4 a month for the same driver and car.
Post Falls, for our benchmark driver. Post Falls full coverage averages about $144 a month and Hayden about $152, a difference of about $8 a month for the same driver and car.
In our Post Falls data, full coverage (100/300/100 with $500 deductibles) averages about $144 a month and liability-only coverage at 25/50/15 limits about $40, a difference of about $104 a month ($1,241 a year). Liability-only coverage won’t pay to repair or replace your own car after a crash, a theft or a storm.
Yes, for our benchmark driver. Comparing the same insurers and ZIP code, Post Falls full coverage rose 2.3% between November 2025 and August 2026, from about $1,686 to $1,725 a year. Allstate raised its average 5.1%, State Farm 2.9% and Farmers 2.8%. Liability-only coverage at 25/50/15 limits rose 6.6%.
- About the Author
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Michael Giusti is a senior insurance analyst, business journalist, and university professor with over 20 years of experience. He serves as department chair at Loyola University New Orleans and contributes to Insurance Thought Leadership, U.S. News, and other leading financial outlets.
