| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 423 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:48 PM |
| Population: | 38,069 [See All] |
| FIPS: | 47143 |
| Land Area: | 478 sq mi |
| Water Area: | 21 sq mi |
| Coordinates: | 35.5952, -85.0015 |
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38,069 residents live across 5 ZIPs covering 478 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 35,496 to 38,069 from 2014 to 2024 — a +7.2% change. 4 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 37332 (Evensville, $59,479 median) and poorest ZIP 37337 (Grandview, $48,359) are 14.4 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.9× across this county — from $121,800 in 37338 (Graysville) to $230,100 in 37381 (Spring City).
Density varies 9× across the county — from 19 people/sq mi in 37337 (Grandview) to 175 in 37321 (Dayton).
Educational attainment ranges from 10.0% bachelor's+ in 37332 (Evensville) to 19.3% in 37321 (Dayton) — the breadth of educational profiles across the area.
Within Tennessee, this is the #41 most populous of 95 counties and ranks #69 for median household income with the #38 fastest decade growth .
Weighted by population, the typical household earns about $54,867 across the county — reflecting what a typical resident sees, not a simple ZIP average.
17.7% of adults age 25+ hold a bachelor's degree or higher (4,720 of 26,624 reporting).
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.