ZIP 37031 · Sumner County

Castalian Springs, TN Homeowners Insurance

According to U.S. Treasury FIO 2022 filings, homeowners insurance in ZIP 37031, Castalian Springs, Tennessee averages $1,714/yr.

18.2%
Loss ratio
1.08%
Nonrenewal rate
#242 of 552
Tennessee rank
35
Policies

The verdict

ZIP 37031 (Castalian Springs, TN) is #9,941 of 25,593 for homeowners premium and #8,821 of 21,752 for nonrenewal, per 2022 FIO filings. The two ranks do not match.

$1,714
Avg premium (2022)
#9,941
of 25,593 on premium
#8,821
of 21,752 on nonrenewal
61st
national percentile

Premium rank counts ZIPs with a reported average premium, highest first. Nonrenewal rank counts ZIPs with a reported nonrenewal rate, highest first. The two boards are different extracts.

According to U.S. Treasury Federal Insurance Office data. How we calculate the percentile and national comparison: methodology.

Insurance Livability Score

F
PlainInsure Livability Score
35/100
37031 - Castalian Springs, TN

PlainInsure's own composite of Treasury FIO premium/market data and FEMA National Risk Index hazard data, each dimension percentile-ranked against the full national corpus. Not an official government score, and not a substitute for an actual insurance quote.

Affordability F
$1,714/yr
Avg premium, 39th cheapest nationally (Treasury FIO)
Market Stability D
0.01%
Nonrenewal rate -- insurers dropping coverage (Treasury FIO)
Disaster Risk F
87.7
County FEMA National Risk Index score
Community Resilience C
55.7
County FEMA NRI community-resilience score

Where ZIP 37031's premium sits nationally

Average annual homeowners premium across 25,593 tracked ZIP codes, as of 2022

$1,714 Around the middle lower than 39% of 25,593 ZIP codes

tracked ZIP codes, bucketed by value

Each bar is a $0.25K-wide band; taller bars hold more ZIP codes. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source U.S. Treasury Federal Insurance Office · 2022

The local market map

Premium and nonrenewal do not always move together

The highlighted dot is ZIP 37031. Each other dot is a deterministic sample of ZIPs in Tennessee, spread across the premium range. Crosshairs mark the published state averages, so this is a comparison of two reported measures, not a quote or a forecast.

State ZIP peer map

Highlighted: ZIP 37031; crosshairs: Tennessee averages

Lower premium / higher nonrenewalHigher on bothLower on bothHigher premium / lower nonrenewal$889.2$1710.9$2532.7$3354.4$4176.10.0%0.6%1.1%1.7%2.2%Average annual premiumNonrenewal rate
Source: U.S. Treasury FIO 2022 ZIP-level homeowners insurance filings. The matrix samples 50 ZIPs across the state premium distribution and retains this ZIP.
Read the plotted ZIP values
  • ZIP 37665 · Kingsport $1,039/yr · 2.12%
  • ZIP 37818 · Mosheim $1,232/yr · 0.89%
  • ZIP 37745 · Greeneville $1,282/yr · 0.61%
  • ZIP 37688 · Shady Valley $1,325/yr · 1.10%
  • ZIP 37849 · Powell $1,343/yr · 1.05%
  • ZIP 38558 · Crossville $1,373/yr · 0.12%
  • ZIP 38551 · Celina $1,401/yr · 0.56%
  • ZIP 37757 · Jacksboro $1,428/yr · 2.09%
  • ZIP 38556 · Jamestown $1,451/yr · 1.01%
  • ZIP 37210 · Nashville $1,473/yr · 1.96%
  • ZIP 37724 · Cumberland Gap $1,496/yr · 2.12%
  • ZIP 38571 · Crossville $1,508/yr · 0.80%
  • ZIP 37385 · Tellico Plains $1,530/yr · 0.90%
  • ZIP 37373 · Sale Creek $1,550/yr · 1.53%
  • ZIP 38564 · Granville $1,563/yr · 2.08%
  • ZIP 38464 · Lawrenceburg $1,577/yr · 1.26%
  • ZIP 37876 · Sevierville $1,589/yr · 0.77%
  • ZIP 38545 · Bloomington Springs $1,600/yr · 0.91%
  • ZIP 37872 · Sunbright $1,613/yr · 1.47%
  • ZIP 37160 · Shelbyville $1,624/yr · 1.18%
  • ZIP 37416 · Chattanooga $1,632/yr · 1.22%
  • ZIP 37369 · Reliance $1,646/yr · 1.33%
  • ZIP 37742 · Greenback $1,656/yr · 0.67%
  • ZIP 37209 · Nashville $1,669/yr · 1.06%
  • ZIP 37073 · Greenbrier $1,679/yr · 1.52%
  • ZIP 38321 · Cedar Grove $1,690/yr · 1.90%
  • ZIP 38320 · Camden $1,704/yr · 1.01%
  • ZIP 37031 · Castalian Springs (this ZIP) $1,714/yr · 1.08%
  • ZIP 37142 · Palmyra $1,719/yr · 1.61%
  • ZIP 37146 · Pleasant View $1,726/yr · 1.30%
  • ZIP 37313 · Coalmont $1,740/yr · 2.03%
  • ZIP 37143 · Pegram $1,762/yr · 0.48%
  • ZIP 38317 · Bruceton $1,775/yr · 0.41%
  • ZIP 37191 · Woodlawn $1,788/yr · 0.53%
  • ZIP 38339 · Guys $1,802/yr · 0.87%
  • ZIP 38232 · Hornbeak $1,814/yr · 1.02%
  • ZIP 37095 · Liberty $1,830/yr · 1.87%
  • ZIP 37203 · Nashville $1,845/yr · 1.45%
  • ZIP 37033 · Centerville $1,855/yr · 0.99%
  • ZIP 38261 · Union City $1,871/yr · 0.99%
  • ZIP 38581 · Rock Island $1,891/yr · 1.73%
  • ZIP 38382 · Trenton $1,912/yr · 0.91%
  • ZIP 37153 · Rockvale $1,945/yr · 1.74%
  • ZIP 37189 · Whites Creek $2,012/yr · 1.30%
  • ZIP 37085 · Lascassas $2,064/yr · 1.27%
  • ZIP 38128 · Memphis $2,111/yr · 1.96%
  • ZIP 38111 · Memphis $2,245/yr · 1.71%
  • ZIP 38103 · Memphis $2,426/yr · 1.79%
  • ZIP 38138 · Germantown $2,809/yr · 1.23%
  • ZIP 37350 · Lookout Mountain $4,027/yr · 0.20%
Avg Premium (2022)
$1,714/yr
Near-median premium
+3.7% since 2018
Loss Ratio
18.2%
Below-median loss ratio
Claim Frequency
2.89%
Avg severity: $10,763
Nonrenewal Rate
1.08%
Near-median nonrenewal rate
+71.9% change

Data Snapshot: ZIP 37031 (Castalian Springs, TN)

U.S. Treasury FIO ZIP-level observations put the average homeowners insurance premium in ZIP 37031 (Castalian Springs, TN) at $1,714 per year for 2022 across approximately 35 reported policies. Nationally, that ranks ZIP 37031 in the 61st percentile, 3% below the U.S. average of $1,776 per year. Compared to the Tennessee state average of $1,728, this ZIP runs 1% below, ranking #242 of 552 tracked ZIPs in Tennessee by premium. The closest-priced peer within Tennessee is Burlison (ZIP 38015) at $1,713, essentially matching this ZIP's rate.

ZIP 37031 shows a 18.2% loss ratio, an indication that insurers retained a working margin after claims. 2.89% of policies in ZIP 37031 file at least one claim in a given year, and the average claim severity (amount paid per claim) is $10,763. Insurers decline to renew 1.08% of policies in ZIP 37031 at expiration, a rise of 71.9% over the past five years; a rising rate typically signals carriers retreating from higher-risk markets.

Since 2018, premiums here have risen by 3.7% through 2022, ranging $1,637 to $1,714 with a 5-year average of $1,665, an annualized rate of +0.9% per year.

Sumner County carries a FEMA National Risk Index score of 87.7 (Relatively Moderate), 88th percentile nationally and #7 of 95 Tennessee counties - 67% above the state mean of 52.5. Dominant mapped hazard: Tornado. Companion scores: Social Vulnerability Index 14.8 · Community Resilience 55.7. This is hazard context from FEMA, not a premium formula.

How to read these numbers

The figures on this page come from the U.S. Treasury Federal Insurance Office, which collects homeowners insurance premium and claims data directly from the largest property insurers in the country. Because the data is aggregated at the ZIP-code level and averaged across many policies, it describes the typical cost in an area rather than a quote for any single home. Two houses on the same street can pay very different premiums depending on their age, construction type, roof condition, prior claims, and the specific coverage limits and deductibles the homeowner selects. The loss ratio shows how much of every premium dollar insurers paid back out as claims; a ratio above one means carriers lost money locally, which often precedes rate increases or carrier exits. Rising nonrenewal and claim frequency reveal how stressed the local market has become. Use these figures to gauge the direction and scale of costs in your area, then request quotes from several licensed carriers before buying or renewing a policy. FIO data aggregates voluntary reporting from the 40 largest homeowners insurers, covering roughly 80% of the U.S. market, so figures represent market averages rather than individual policy quotes; your own premium will vary with dwelling value, deductible, coverage limits, construction type, and insurer-specific underwriting. This page is educational research only and is not insurance advice, homeowners should request quotes from multiple licensed carriers or an independent agent before purchasing or renewing coverage.

How ZIP 37031 Compares

vs National Average
$1,714 vs $1,776
3% below national avg
vs Tennessee Average
$1,714 vs $1,728
1% below state avg
National Percentile
61th percentile
Above median cost

Premium History

Average premium in ZIP 37031, 2018–2022

$1,620$1,640$1,660$1,680$1,700$1,720 20182019202020212022 $1,714
Average homeowners premium per year in ZIP 37031.
Year Avg Premium YoY Change
2018 $1,653 -
2019 $1,637 -1.0%
2020 $1,676 +2.4%
2021 $1,648 -1.7%
2022 $1,714 +4.0%

2018-2022 premium path for ZIP 37031

5-Year Avg Premium
$1,665
Premium Range
$1,637 - $1,714
Annual Change Rate
+0.9% per year
Years of Data
5 (2018-2022)

Elevated FEMA NRI in Sumner County

County National Risk Index joined to ZIP 37031 via FIPS 47165. Hazard and vulnerability context from FEMA, not a premium driver and not a quote.

County risk score
87.7
Relatively Moderate · 88th national percentile
In-state county rank
#7
of 95 Tennessee counties · state mean 52.5
Top mapped hazard
Tornado
Expected annual loss $16,124,672

Social Vulnerability Index 14.8 · Community Resilience 55.7

County hazard ratings

Wildfire
Very Low
Flooding
Relatively Moderate
Earthquake
Relatively Moderate
Hurricane
Very Low
Tornado
Relatively High
Hail
Relatively Moderate
Winter weather
Relatively High

Source: FEMA National Risk Index · state rollup: Tennessee NRI context · top counties by NRI score.

Cross-state FIO peers for a higher-NRI ZIP (Sumner County)

Two FIO peer sets for ZIP 37031 in Sumner County (NRI 87.7, hazard Tornado), both outside Tennessee. Population floor ≥1,000 matches the rate rankings.

Similar average premium

Nearest other-state ZIPs by average homeowners premium ($1,714/yr here).

Similar nonrenewal rate

Nearest other-state ZIPs by nonrenewal rate (1.08% here).

Source: U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs

Frequently Asked Questions

How much is homeowners insurance in ZIP 37031?
At the 61st percentile nationally, #242 of 552 ZIPs in Tennessee, ZIP 37031 (Castalian Springs, TN) pays a middle-of-the-pack $1,714 per year as of 2022 for homeowners insurance. Premiums have changed +3.7% over the past 5 years.
What affects homeowners insurance costs in Castalian Springs, TN?
Key cost drivers in ZIP 37031: a claims frequency of 2.89%, a loss ratio of 18.2%, and a nonrenewal rate of 1.08%, placing this ZIP in the 61st percentile nationally for cost.
Is homeowners insurance expensive in ZIP 37031 compared to the national average?
ZIP 37031 premiums of $1,714/yr are 3% below the national average of $1,776/yr. This ZIP is in the 61st percentile nationally.
What is the nonrenewal rate in ZIP 37031?
ZIP 37031 shows a nonrenewal rate of 1.08% in Tennessee, a rise of 71.9% over the past 5 years.
How have premiums trended in ZIP 37031 over 5 years?
Over 5 years (2018-2022), premiums in ZIP 37031 have ranged from $1,637 to $1,714, with a 5-year average of $1,665. The annualized change rate is +0.9% per year.
How does ZIP 37031 compare to the Tennessee state average?
The Tennessee state average is $1,728/yr; ZIP 37031 averages $1,714/yr, 1% below that figure, ranking #242 of 552 tracked ZIPs in Tennessee by premium.
What is the FEMA National Risk Index score for ZIP 37031?
County NRI 87.7 (Relatively Moderate) covers ZIP 37031 via Sumner County FIPS 47165. In-state rank #7 of 95; national percentile 88th; hazard Tornado.

What to do with ZIP 37031

This ZIP's premiums run at the 61st national percentile, but a single number is not a quote.

These figures are Treasury FIO aggregates for this ZIP, not a personal insurance quote.

Every figure on PlainInsure is rendered directly from U.S. Treasury Federal Insurance Office data, no number is typed in by an editor. This page draws directly on U.S. Treasury FIO data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.