| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 270 / 364 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:38 PM |
| Population: | 29,664 [See All] |
| FIPS: | 21141 |
| Land Area: | 646 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 36.8387, -86.8936 |
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29,664 residents live across 5 ZIPs covering 646 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 28,002 to 29,664 from 2014 to 2024 — a +5.9% change. 3 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 42206 (Auburn, $66,815 median) and poorest ZIP 42276 (Russellville, $57,144) are 9.3 miles apart — a 1.2× income gap across local geography.
Median home values vary 2.6× across this county — from $139,400 in 42202 (Adairville) to $369,100 in 42265 (Olmstead).
Density varies 7× across the county — from 12 people/sq mi in 42265 (Olmstead) to 79 in 42276 (Russellville).
Educational attainment ranges from 10.0% bachelor's+ in 42202 (Adairville) to 55.7% in 42265 (Olmstead) — the breadth of educational profiles across the area.
Within Kentucky, this is the #37 most populous of 120 counties and ranks #50 for median household income with the #30 fastest decade growth .
Weighted by population, the typical household earns about $59,772 across the county — reflecting what a typical resident sees, not a simple ZIP average.
15.9% of adults age 25+ hold a bachelor's degree or higher (3,276 of 20,540 reporting).
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.