| ZIP Codes: | 8 ZIP Codes (5 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 423 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:48 PM |
| Population: | 16,406 [See All] |
| FIPS: | 47129 |
| CBSA: | Knoxville, TN |
| Land Area: | 447 sq mi |
| Water Area: | 0 sq mi |
| Coordinates: | 36.1478, -84.6143 |
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16,406 residents live across 8 ZIPs covering 447 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 16,321 to 16,406 from 2014 to 2024 — a +0.5% change. 3 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 37829 (Oakdale, $90,691 median) and poorest ZIP 37845 (Petros , $15,486) are 11.1 miles apart — a 5.9× income gap across local geography.
Median home values vary 1.5× across this county — from $127,200 in 37770 (Lancing) to $187,900 in 37887 (Wartburg).
Density varies 5× across the county — from 20 people/sq mi in 37770 (Lancing) to 88 in 37887 (Wartburg).
Educational attainment ranges from 7.3% bachelor's+ in 37872 (Sunbright) to 13.0% in 37829 (Oakdale) — the breadth of educational profiles across the area.
Within Tennessee, this is the #74 most populous of 95 counties and ranks #56 for median household income .
Weighted by population, the typical household earns about $64,169 across the county — reflecting what a typical resident sees, not a simple ZIP average.
9.8% of adults age 25+ hold a bachelor's degree or higher (1,189 of 12,097 reporting).
5 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 5.9× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 37887 | Wartburg | Standard | 6,555 | $65,137 | 74.3 | -16.5% |
| 37770 | Lancing | Standard | 2,756 | $47,835 | 141.0 | 7.8% |
| 37726 | Deer Lodge | Standard | 2,556 | $66,875 | 94.6 | 73.5% |
| 37872 | Sunbright | Standard | 2,346 | $58,906 | 91.7 | 36.6% |
| 37829 | Oakdale | Standard | 1,977 | $90,691 | 44.0 | -6.8% |
| 37845 | Petros | PO Box | 171 | $15,486 | 0.0 | -60.1% |
| 37719 | Coalfield | PO Box | 45 | — | 0.0 | -60.2% |
| 37733 | Rugby | PO Box | 0 | — | 0.9 | -100.0% |