| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 423 / 865 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:47 PM |
| Population: | 66,097 [See All] |
| FIPS: | 47105 |
| CBSA: | Knoxville, TN |
| Land Area: | 322 sq mi |
| Water Area: | 17 sq mi |
| Coordinates: | 35.7454, -84.3172 |
| Quick Link: |
66,097 residents live across 5 ZIPs covering 322 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 57,647 to 66,097 from 2014 to 2024 — a +14.7% change. 4 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 37772 (Lenoir City, $100,711 median) and poorest ZIP 37771 (Lenoir City, $66,938) are 7.5 miles apart — a 1.5× income gap across local geography.
Median home values vary 2.1× across this county — from $201,700 in 37846 (Philadelphia) to $429,800 in 37772 (Lenoir City).
Density varies 5× across the county — from 62 people/sq mi in 37846 (Philadelphia) to 320 in 37772 (Lenoir City).
Most of the decade's growth concentrated around Lenoir City — top growth ZIPs averaged +22.1% over the past ten years ( 37772 , 37774 and 37771 ).
Educational attainment ranges from 10.4% bachelor's+ in 37846 (Philadelphia) to 40.8% in 37772 (Lenoir City) — the breadth of educational profiles across the area.
Within Tennessee, this is the #22 most populous of 95 counties and ranks #11 for median household income with the #11 fastest decade growth .
Weighted by population, the typical household earns about $83,956 across the county — reflecting what a typical resident sees, not a simple ZIP average.
27.7% of adults age 25+ hold a bachelor's degree or higher (13,648 of 49,280 reporting). The most-educated ZIPs cluster around Lenoir City.
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.