County ZIP codes · Kentucky · FIPS 21089
Greenup County, KY ZIP Codes
Greenup County, Kentucky has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Greenup County and 4 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $36,508 in 41141 (Garrison) to $67,879 in 41102 (Ashland) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Greenup County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $51,314 and $65,609.
They carry 10 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 11 residential ZIP codes in Greenup County
7 ZIP codes lie mainly in Greenup County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 41144 | Greenup | 9,064 | 64 | $60k | $126k | 100% |
| 41139 | Flatwoods | 8,085 | 981 | $59k | $113k | 100% |
| 41169 | Russell | 5,560 | 894 | $67k | $162k | 100% |
| 41175 | South Shore | 5,542 | 71 | $42k | $102k | 100% |
| 41183 | Worthington | 1,759 | 1,165 | $66k | $133k | 100% |
| 41121 | Argillite | 1,382 | 30 | $51k | $134k | 100% |
| 41174 | South Portsmouth | 803 | 65 | $56k | $114k | 74% |
Partly in Greenup 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 Greenup County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Greenup | Elsewhere |
|---|---|---|
| 41102 | 10% | Boyd County89%; Carter County1% |
| 41101 | 17% | Boyd County83% |
| 41143 | 10% | Carter County90% |
| 41141 | 43% | Lewis County57% |
| 41174 | 74% | Lewis County26% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Greenup County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Greenup County starts with 411.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 411 | Charleston, WV (SCF 250) | 11 | 32 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.