| ZIP Codes: | 10 ZIP Codes (10 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 615 / 629 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:49 PM |
| Population: | 19,371 [See All] |
| FIPS: | 47159 |
| CBSA: | Nashville-Davidson--Murfreesboro--Franklin, TN |
| Land Area: | 338 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 36.2396, -85.9450 |
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19,371 residents live across 10 ZIPs covering 338 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 17,517 to 19,371 from 2014 to 2024 — a +10.6% change. 8 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 37151 (Riddleton, $102,168 median) and poorest ZIP 38563 (Gordonsville, $50,313) are 7.5 miles apart — a 2.0× income gap across local geography.
Median home values vary 2.0× across this county — from $177,800 in 37145 (Pleasant Shade) to $362,800 in 38569 (Lancaster).
Density varies 4× across the county — from 26 people/sq mi in 37151 (Riddleton) to 112 in 37030 (Carthage).
Educational attainment ranges from 12.5% bachelor's+ in 38560 (Elmwood) to 36.8% in 38569 (Lancaster) — the breadth of educational profiles across the area.
Within Tennessee, this is the #65 most populous of 95 counties and ranks #14 for median household income with the #20 fastest decade growth .
Weighted by population, the typical household earns about $69,245 across the county — reflecting what a typical resident sees, not a simple ZIP average.
19.3% of adults age 25+ hold a bachelor's degree or higher (2,637 of 13,663 reporting).
10 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 37030 | Carthage | Standard | 8,183 | $61,800 | 73.0 | 20.2% |
| 37145 | Pleasant Shade | Standard | 2,442 | $69,150 | 76.0 | 18.1% |
| 38547 | Brush Creek | Standard | 2,088 | $80,843 | 30.5 | 35.1% |
| 38563 | Gordonsville | Standard | 1,826 | $50,313 | 32.9 | -35.3% |
| 38560 | Elmwood | Standard | 1,432 | $77,986 | 37.0 | 21.5% |
| 38567 | Hickman | Standard | 1,065 | $100,368 | 21.2 | 47.1% |
| 37057 | Dixon Springs | Standard | 1,016 | $78,940 | 29.6 | -17.0% |
| 38552 | Chestnut Mound | Standard | 472 | $71,250 | 5.7 | 31.1% |
| 37151 | Riddleton | Standard | 457 | $102,168 | 17.9 | 5.5% |
| 38569 | Lancaster | Standard | 390 | — | 14.2 | 10.2% |