| ZIP Codes: | 9 ZIP Codes (7 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 615 / 629 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:49 PM |
| Population: | 191,189 [See All] |
| FIPS: | 47165 |
| CBSA: | Nashville-Davidson--Murfreesboro--Franklin, TN |
| Land Area: | 602 sq mi |
| Water Area: | 15 sq mi |
| Coordinates: | 36.4634, -86.4605 |
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191,189 residents live across 9 ZIPs covering 602 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 154,618 to 191,189 from 2014 to 2024 — a +23.7% change. 4 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 37075 (Hendersonville, $101,850 median) and poorest ZIP 37186 (Westmoreland, $59,545) are 27.7 miles apart — a 1.7× income gap across local geography.
Median home values vary 2.0× across this county — from $221,500 in 37186 (Westmoreland) to $440,800 in 37075 (Hendersonville).
Density varies 17× across the county — from 65 people/sq mi in 37022 (Bethpage) to 1,105 in 37075 (Hendersonville).
Educational attainment ranges from 10.4% bachelor's+ in 37186 (Westmoreland) to 42.2% in 37075 (Hendersonville) — the breadth of educational profiles across the area.
Within Tennessee, this is the #8 most populous of 95 counties and ranks #8 for median household income with the #7 fastest decade growth .
Weighted by population, the typical household earns about $89,062 across the county — reflecting what a typical resident sees, not a simple ZIP average.
33.2% of adults age 25+ hold a bachelor's degree or higher (43,751 of 131,978 reporting).
7 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 37075 | Hendersonville | Standard | 73,522 | $101,850 | 66.5 | 19.1% |
| 37066 | Gallatin | Standard | 64,650 | $81,614 | 121.9 | 43.6% |
| 37148 | Portland | Standard | 26,274 | $81,633 | 131.8 | 17.7% |
| 37186 | Westmoreland | Standard | 10,709 | $59,545 | 108.1 | 21.7% |
| 37048 | Cottontown | Standard | 6,380 | $100,446 | 46.4 | -4.7% |
| 37022 | Bethpage | Standard | 5,728 | $79,375 | 87.5 | -4.7% |
| 37031 | Castalian Springs | Standard | 3,926 | $98,114 | 40.3 | -2.2% |
| 37119 | Mitchellville | PO Box | — | — | 0.0 | — |
| 37077 | Hendersonville | PO Box | — | — | 0.0 | — |