| ZIP Codes: | 10 ZIP Codes (8 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 270 / 364 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:22 PM |
| Population: | 147,438 [See All] |
| FIPS: | 21227 |
| CBSA: | Bowling Green, KY |
| Land Area: | 662 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 36.9378, -86.4033 |
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147,438 residents live across 10 ZIPs covering 662 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 124,519 to 147,438 from 2014 to 2024 — a +18.4% change. 6 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 42122 (Alvaton, $113,705 median) and poorest ZIP 42101 (Bowling Green, $48,217) are 13.5 miles apart — a 2.4× income gap across local geography.
Median home values vary 1.8× across this county — from $182,100 in 42274 (Rockfield) to $331,400 in 42103 (Bowling Green).
Density varies 14× across the county — from 53 people/sq mi in 42274 (Rockfield) to 716 in 42104 (Bowling Green).
Educational attainment ranges from 12.3% bachelor's+ in 42171 (Smiths Grove) to 47.4% in 42103 (Bowling Green) — the breadth of educational profiles across the area.
Within Kentucky, this is the #4 most populous of 120 counties and ranks #10 for median household income with the #3 fastest decade growth .
Weighted by population, the typical household earns about $66,542 across the county — reflecting what a typical resident sees, not a simple ZIP average.
31.1% of adults age 25+ hold a bachelor's degree or higher (28,454 of 91,555 reporting). The most-educated ZIPs cluster around Bowling Green.
8 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 |
|---|---|---|---|---|---|---|
| 42101 | Bowling Green | Standard | 65,421 | $48,217 | 283.8 | 14.2% |
| 42104 | Bowling Green | Standard | 42,076 | $75,164 | 58.8 | 37.0% |
| 42103 | Bowling Green | Standard | 21,911 | $87,689 | 74.1 | 8.2% |
| 42171 | Smiths Grove | Standard | 6,723 | $70,191 | 108.5 | -3.0% |
| 42122 | Alvaton | Standard | 5,513 | $113,705 | 37.6 | 23.6% |
| 42274 | Rockfield | Standard | 2,157 | $80,704 | 40.9 | -1.7% |
| 42170 | Woodburn | Standard | 1,938 | $96,111 | 31.5 | 27.1% |
| 42159 | Oakland | Standard | 1,699 | $66,756 | 27.3 | 48.4% |
| 42128 | Bowling Green | PO Box | — | — | 0.0 | — |
| 42102 | Bowling Green | PO Box | — | — | 0.0 | — |