County ZIP codes · Kentucky · FIPS 21005
Anderson County, KY ZIP Codes
Anderson County, Kentucky has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 1 of the residential ones lie mainly in Anderson County and 4 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $74,408 in 40342 (Lawrenceburg) to $91,786 in 40076 (Waddy) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Anderson County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
They carry 5 postal town names: Lawrenceburg, Waddy, Salvisa, Mount Eden, Chaplin.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 5 residential ZIP codes in Anderson County
1 ZIP code lies mainly in Anderson County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 40342 | Lawrenceburg | 23,963 | 129 | $74k | $225k | 99% |
Partly in Anderson County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
5 ZIP codes of Anderson County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Anderson | Elsewhere |
|---|---|---|
| 40342 | 99% | |
| 40076 | 9% | Shelby County 87%; Franklin County 4% |
| 40372 | 6% | Mercer County 94% |
| 40046 | 17% | Spencer County 76%; Shelby County 7% |
| 40012 | 22% | Nelson County 78% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Anderson County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Anderson County's ZIP codes use 2 prefixes: 400 and 403.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.