| ZIP Codes: | 9 ZIP Codes (6 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 731 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:48 PM |
| Population: | 29,317 [See All] |
| FIPS: | 47131 |
| CBSA: | Union City, TN |
| Land Area: | 515 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 36.3785, -89.1523 |
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29,317 residents live across 9 ZIPs covering 515 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 30,124 to 29,317 from 2014 to 2024 — a -2.7% change. 3 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 38253 (Rives, $69,954 median) and poorest ZIP 38232 (Hornbeak, $46,272) are 15.1 miles apart — a 1.5× income gap across local geography.
Median home values vary 2.4× across this county — from $103,100 in 38257 (South Fulton) to $250,000 in 38253 (Rives).
Density varies 6× across the county — from 15 people/sq mi in 38253 (Rives) to 90 in 38261 (Union City).
Educational attainment ranges from 8.8% bachelor's+ in 38232 (Hornbeak) to 28.6% in 38253 (Rives) — the breadth of educational profiles across the area.
Within Tennessee, this is the #52 most populous of 95 counties and ranks #61 for median household income .
Weighted by population, the typical household earns about $55,025 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.5% of adults age 25+ hold a bachelor's degree or higher (3,836 of 20,719 reporting).
6 Standard delivery, 3 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 38261 | Union City | Standard | 16,385 | $55,876 | 181.1 | -3.7% |
| 38257 | South Fulton | Standard | 4,437 | $58,849 | 57.9 | 4.6% |
| 38260 | Troy | Standard | 3,720 | $49,139 | 72.0 | 4.6% |
| 38232 | Hornbeak | Standard | 2,238 | $46,272 | 68.9 | 24.3% |
| 38240 | Obion | Standard | 1,620 | $53,095 | 75.3 | -30.7% |
| 38253 | Rives | Standard | 917 | $69,954 | 59.8 | -16.7% |
| 38254 | Samburg | PO Box | 0 | — | 0.0 | -100.0% |
| 38271 | Woodland Mills | PO Box | — | — | 0.0 | — |
| 38281 | Union City | PO Box | — | — | 0.0 | — |