| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 931 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:47 PM |
| Population: | 19,761 [See All] |
| FIPS: | 47085 |
| Land Area: | 586 sq mi |
| Water Area: | 26 sq mi |
| Coordinates: | 36.0057, -87.7855 |
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19,761 residents live across 4 ZIPs covering 586 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 18,500 to 19,761 from 2014 to 2024 — a +6.8% change. 4 ZIPs gained residents, 0 lost.
The county's wealthiest ZIP 37134 (New Johnsonville, $78,884 median) and poorest ZIP 37185 (Waverly, $51,314) are 7.8 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.7× across this county — from $154,300 in 37134 (New Johnsonville) to $257,900 in 37078 (Hurricane Mills).
Density varies 6× across the county — from 10 people/sq mi in 37078 (Hurricane Mills) to 65 in 37134 (New Johnsonville).
Educational attainment ranges from 9.0% bachelor's+ in 37078 (Hurricane Mills) to 17.3% in 37185 (Waverly) — the breadth of educational profiles across the area.
Within Tennessee, this is the #64 most populous of 95 counties and ranks #30 for median household income with the #41 fastest decade growth .
Weighted by population, the typical household earns about $64,735 across the county — reflecting what a typical resident sees, not a simple ZIP average.
15.8% of adults age 25+ hold a bachelor's degree or higher (2,223 of 14,041 reporting).
4 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.