County · GEOID 21213
Simpson County, KY ZIP codes
5 ZIP/ZCTAs intersecting this county.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: County Simpson County (GEOID 21213). Methodology
Combined population of ZIP/ZCTAs intersecting this county: 69,307 (5 ZIPs).
Combined population of ZIP/ZCTAs intersecting this county. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census county ACS headline above. Methodology
ZIP/ZCTA overlap with Simpson County
Population overlap
Share of each ZIP/ZCTA’s population located within Simpson County, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Simpson County
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 42104 | Bowling Green | Warren County | 41,273 | $73,975 |
| 42134 | Franklin | Simpson County | 19,117 | $55,347 |
| 42170 | Woodburn | Warren County | 1,506 | $61,981 |
| 42202 | Adairville | Logan County | 1,736 | $64,375 |
| 42206 | Auburn | Logan County | 5,675 | $65,630 |
USPS associates these ZIPs with Simpson County
These codes list Simpson County as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 42135 | Franklin | Simpson County | 766 | — |