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ZIP Code 37031

Castalian Springs, TN, Sumner County

Population

3,926

Land area

38.3sq mi

People per sq mi

103

City

Castalian Springs

ZIP 37031 and nearby ZIP codes

Full map

ZIP 37031 at a glance

  • ZIP 37031 (Castalian Springs) is 40% less dense than Tennessee as a whole.
  • The median household income is $98,114, 41% above the Tennessee median of $69,595.
  • A typical owner-occupied home is valued at $352,600 (23% above Tennessee).

Local data for ZIP 37031

Counts from official public data

Housing and community stats

ZIP 37031, American Community Survey 2020-2024

Full profile

Median household income

$98,114

Poverty rate

8.3%

Median home value

$352,600

Prices -0.8% in a year

Homeownership

94.1%

Bachelor's or higher

21.2%

Median age

53.5

Average commute

29.1 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

38

ZIP Business Patterns 2023

Employees

187

$7.2M annual payroll

PPP loans

$1M

60 loans

Campaign donations

$5,200

31% D, 27% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 37031, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: tornado

Storm events since 1996

809

Countywide, mostly thunderstorm wind

Flood insurance policies

598

0.9% of homes, county

July high / Jan low

89° / 27°F

52.7 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in ZIP 37031, CDC PLACES estimates

All 40 measures

Obesity

40.5%

U.S. 33.3% +7.2 pts

Diabetes

12.7%

U.S. 12.1% +0.6 pts

Smoking

17.6%

U.S. 12.8% +4.8 pts

Uninsured (18-64)

10.1%

U.S. 11.1% -1.0 pts

Frequently asked questions

What city is ZIP code 37031?
ZIP code 37031 is in Castalian Springs, TN (Sumner County).
What county is ZIP code 37031 in?
ZIP code 37031 is mostly in Sumner County, Tennessee.
How many people live in ZIP code 37031?
About 3,926 people live in the 37031 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.