| ZIP Codes: | 8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 615 / 629 / 931 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:55:08 PM |
| Population: | 81,165 [See All] |
| FIPS: | 47147 |
| CBSA: | Nashville-Davidson--Murfreesboro--Franklin, TN |
| Land Area: | 467 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 36.5108, -86.8209 |
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81,165 residents live across 8 ZIPs covering 467 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 70,415 to 81,165 from 2014 to 2024 — a +15.3% change. 6 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 37010 (Adams, $118,179 median) and poorest ZIP 37172 (Springfield, $72,168) are 15.5 miles apart — a 1.6× income gap across local geography.
Median home values vary 1.8× across this county — from $237,000 in 37141 (Orlinda) to $424,900 in 37010 (Adams).
Density varies 9× across the county — from 68 people/sq mi in 37010 (Adams) to 600 in 37188 (White House).
Educational attainment ranges from 12.1% bachelor's+ in 37141 (Orlinda) to 40.2% in 37010 (Adams) — the breadth of educational profiles across the area.
Within Tennessee, this is the #18 most populous of 95 counties and ranks #5 for median household income with the #10 fastest decade growth .
Weighted by population, the typical household earns about $84,643 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.4% of adults age 25+ hold a bachelor's degree or higher (12,886 of 54,955 reporting).
7 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 37172 | Springfield | Standard | 31,263 | $72,168 | 179.9 | 10.6% |
| 37188 | White House | Standard | 18,241 | $90,856 | 30.4 | 29.3% |
| 37073 | Greenbrier | Standard | 14,995 | $89,065 | 51.2 | 11.5% |
| 37032 | Cedar Hill | Standard | 5,453 | $88,157 | 77.4 | 30.6% |
| 37010 | Adams | Standard | 5,435 | $118,179 | 80.3 | -2.4% |
| 37049 | Cross Plains | Standard | 4,160 | $90,048 | 27.7 | 23.1% |
| 37141 | Orlinda | Standard | 1,618 | $76,250 | 19.6 | 10.3% |
| 37152 | Ridgetop | PO Box | — | — | 0.0 | — |