ZIP Code 37031 is located in Castalian Springs Tennessee. Portions of 37031 are also in Hartsville. 37031 is primarily within Sumner County, with some portions in Trousdale County. Regionally, it is located in Metro Nashville.
| ZIP Code Name | Castalian Springs |
| Primary County | Sumner County |
| ZIP Code Type | Standard |
| Population (2022) | 4,089 |
| Area Code(s) | 615 / 629 |
| Current Time | CDT |
37031 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Tennessee based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 37031 is White. The current unemployment level in 37031 is 2.5%.
| Population | 4,089 |
| Population Growth Rate | 10.61% |
| Population Density | 99 People per Square Mile |
| Total Households | 1,405 |
| Median Household Income (2021) | $77,361 |
| Average Adjusted Gross Income (2020) | $62,150 |
| Current Unemployment Rate (April 2024) | 2.5% |
| Majority Race/Ethnicty | White - 96.19% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 3,934 | 95.97% |
| Black | 71 | 1.73% |
| Hispanic | 84 | 2.05% |
| Asian | 0 | 0% |
| Native American | 1 | 0.02% |
| Hawaiian/Pac. Islander | 9 | 0.22% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 243 | 10% |
| Bachelor Degree | 225 | 9.26% |
| High School Diploma | 1,038 | 42.7% |
| No High School Diploma | 49 | 2.02% |
| GED or Alternate | 175 | 7.2% |
| 1 or More Years of College | 413 | 16.99% |
| Associates Degree | 173 | 7.12% |
| Masters Degree | 105 | 4.32% |
| Professional Degree | 10 | 0.41% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 36.37271118,-86.30207825 |
| Adjacent ZIP Codes | |
| Cities/Towns in 37031 | |
| Region | Metro Nashville |
| Metropolitan/Micropolitan Stat Area | Nashville-Davidson--Murfreesboro--Franklin, TN |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 41 Square Miles |
| US Congressional Districts in 37031 | |
| Tennessee State Senate Districts in 37031 | |
| Tennessee State House of Representatives Districts in 37031 |
| School Districts in 37031 | |
| Elementary Schools in 37031 | |
| Middle Schools in 37031 | |
| High Schools in 37031 |
| Plant Hardiness Zone | Zone 7a: 0F to 5F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Cfa - Humid Subtropical Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 71h - Outer Nashville Basin | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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