ZIP code
37031
Castalian Springs, TN
37031 covers Castalian Springs in Sumner County, with 3,984 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 37031. Methodology
ZIP code map of 37031

About ZIP code 37031
Acceptable cities: Castalin Spgs
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 37031. Not ACS. Methodology
People in 37031
Race
- White3,853
- Black or African American123
- American Indian or Alaska Native10
- Asian20
- Native Hawaiian and Pacific Islander1
- Other race54
- Two or more races235
Hispanic or Latino (any race): 148
Age
- Under 10534
- 10 to 19487
- 20 to 29401
- 30 to 39503
- 40 to 49592
- 50 to 59730
- 60 to 69618
- 70 to 79296
- 80 and older135
Income and housing in 37031
Education
- High school graduate93.0%
- Bachelor's degree21.4%
- Graduate degree7.4%
Places covering 37031
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Castalian Springs14.2%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Sumner County76.8%
- Trousdale County23.2%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
62.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 37031
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 3,243 | |
| 2006 | 3,328 | |
| 2007 | 3,636 | |
| 2008 | 3,516 | |
| 2009 | 3,463 | |
| 2010 | 3,422 | |
| 2011 | 3,811 | 3,475 |
| 2012 | 3,948 | 3,620 |
| 2013 | 3,892 | 3,570 |
| 2014 | 4,014 | 3,650 |
| 2015 | 4,399 | 3,660 |
| 2016 | 3,854 | 3,760 |
| 2017 | 3,740 | 3,770 |
| 2018 | 4,198 | 3,920 |
| 2019 | 4,281 | 3,960 |
| 2020 | 4,149 | 4,160 |
| 2021 | 4,137 | 4,190 |
| 2022 | 4,089 | 4,370 |
| 2023 | 3,984 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 37031
12 nearest ZIP centroids (any distance)
- 37087Lebanon8.0 miPop 55,235 · Income $80,978
- 37066Gallatin8.7 miPop 62,404 · Income $78,049
- 37074Hartsville8.9 miPop 10,999 · Income $62,931
- 37022Bethpage9.5 miPop 6,036 · Income $61,250
- 37151Riddleton15.1 miPop 467 · Income $98,665
- 37057Dixon Springs15.3 miPop 691 · Income $86,875
- 37186Westmoreland15.8 miPop 10,644 · Income $57,133
- 37075Hendersonville16.9 miPop 72,541 · Income $97,597
- 37122Mount Juliet17.2 miPop 66,348 · Income $109,306
- 37148Portland17.6 miPop 25,421 · Income $77,684
- 37048Cottontown17.9 miPop 6,325 · Income $98,012
- 37090Lebanon18.1 miPop 17,929 · Income $85,048
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 37031, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 37031 FAQ
- What city is ZIP code 37031 in?
- 37031 is in Castalian Springs, TN.
- What county is 37031 in?
- 37031 is in Sumner County.
- What is the median household income in 37031?
- The median household income in 37031 is $86,380.
- Which ZIP codes are near 37031?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 37031.