Warren County, KY ZIP codes
There are 10 ZIP codes in Warren County, KY, in 7 towns, from 42101 to 42274. The largest are 42101 (Bowling Green), 42104 (Bowling Green) and 42103 (Bowling Green).
The county seat is Bowling Green.
- ZIP codes
- 10
- Towns
- 7
- County seat
- Bowling Green
- County FIPS
21227- State
- Kentucky
- Population
- 140,918
- Median household income
- $65,794
- Land area
- 542 sq mi
- Metro area
- Bowling Green
Warren County ZIP codes by town
- Bowling Green (county seat)
- 42101, 42102, 42103, 42104
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Warren County ZIP codes
The ZIP codes of Warren County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Warren County in numbers
About 140,918 people live in Warren County, in 55,643 households, the 4th most populous of Kentucky's 120 counties. The median household income is $65,794 a year, 3% above the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $258,000 (25% above the Kentucky median), and median gross rent is $1,002 a month. The median age is 33.3; 32.3% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 20 minutes.
| Population | 140,918 |
|---|---|
| Households | 55,643 |
| Median age | 33.3 |
| Median household income | $65,794 |
| Median home value | $258,000 |
| Median gross rent | $1,002 |
| Bachelor's degree or higher | 32.3% |
| Mean commute | 20.3 min |
| Population density | 260 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Warren County
| Town | ZIP codes | Population |
|---|---|---|
| Bowling Green | 4 | 75,388 |
| Alvaton | 1 | 5,513 |
| Rockfield | 1 | 2,157 |
| Smiths Grove | 1 | 786 |
| Woodburn | 1 | 319 |
| Oakland | 1 | 280 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Warren County.
- Barren County (8)
- Logan County (5)
- Allen County (3)
- Simpson County (2)
- Butler County (7)
- Edmonson County (6)
Not sure you are in Warren County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Warren County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
42101 | Bowling Green , KY | Standard | 65,421 | $48,217 | $207,200 |
42102 | Bowling Green , KY | No street area | — | — | — |
42103 | Bowling Green , KY | Standard | 21,911 | $87,689 | $331,400 |
42104 | Bowling Green , KY | Standard | 42,076 | $75,164 | $306,400 |
42122 | Alvaton , KY | Standard | 5,513 | $113,705 | $297,100 |
42128 | Drake , KY | No street area | — | — | — |
42159 | Oakland , KY | Standard | 1,699 | $66,756 | $264,400 |
42170 | Woodburn , KY | Standard | 1,938 | $96,111 | $291,700 |
42171 | Smiths Grove , KY | Standard | 6,723 | $70,191 | $187,500 |
42274 | Rockfield , KY | Standard | 2,157 | $80,704 | $182,100 |
Cite this page
zipcodes.pro. “Warren County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ky/county/warren
Underlying data is public domain or openly licensed — sources, vintages and licences.