Residential delivery area · Kentucky
ZIP Code 40831: Harlan, KY
ZIP code 40831 uses the postal name Harlan, Kentucky and lies entirely in Harlan County (Census 2020 ZIP-county file). About 4,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $35,404 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Harlan (2%) and Coxton (under 1%); 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Harlan · its only residential ZIP
- County
- Harlan County
- Census places
- Harlan (2%); Coxton (under 1%) census-designated place
- House district
- KY-5 119th Congress
- State
- Kentucky
- Time zone
- Eastern
- Land area
- 67.3 sq mi · 71 people per sq mi
Where is ZIP code 40831?
40831 centers on 36.760°, -83.329° and covers 67.3 square miles of land plus 0.6 of water. It borders 12 ZIP codes: 40830, 40964, 40829, 40824, 40873, 40815, 40863, 40854, 40818, 40801 and more.
The map draws ZIP code areas only. For the streets inside 40831, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 40831 compare with the rest of Harlan County?
| Measure | 40831 | In Harlan County | In KY |
|---|---|---|---|
| People (ACS 2020-2024) | 4,789 | 1st of 27 | 208th of 780 |
| Median household income | $35k | 3rd of 4 | 297th of 310 |
| Median home value | $89k | 2nd of 4 | 301st of 320 |
Its median household income is higher than in 4% of U.S. residential ZIP codes, and it is denser than 48% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 40831?
The 2020 Census counted 5,181 people in 40831; the ACS, which samples households over 2020-2024, estimates 4,789. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 4,789±525 (90% margin)
- 2020 Census count
- 5,181
- Households
- 2,167
- Median age
- 42.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 40831?
Of the 4,789 people the ACS estimates in 40831, 19.8% are under 18 and 21.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.5%).
- Under 1819.8%
- 18 to 6458.6%
- 65 and older21.6%
- White, not Hispanic92.5%
- Other or two or more3.6%
- Black, not Hispanic2.7%
- Asian, not Hispanic0.8%
- Hispanic or Latino0.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 40831 earn?
Median household income is $35,404 (ACS 2020-2024), the 3rd highest of the 4 ranked ZIP codes in Harlan County.
- Median household income
- $35,404±$6,631
- Income per person
- $23,292
- Below the poverty line
- 26.1%
- Unemployed (of the labor force)
- 8.7%
- Adults 25+ with a bachelor's degree
- 20.2%
- Adjusted gross income per tax return, 2022
- $61,3211,700 returns; wages 66% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 40831?
- Median home value (owners' estimate)
- $89,100
- Median gross rent
- $620
- Homes owned by their occupants
- 56.7%
- Housing units
- 2,431
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 40831?
186 business establishments had a location in this ZIP code in 2023, 31 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade38
- Health care and social assistance32
- Accommodation and food services23
- Professional, scientific, and technical services19
- Other services (except public administration)18
- Finance and insurance16
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 40831?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 40830 | Gulston | 312 | $22k | 1.1 mi |
| 40964 | Mary Alice | 101 | – | 1.6 mi |
| 40829 | Grays Knob | 62 | $56k | 2.9 mi |
| 40824 | Dayhoit | 977 | $50k | 5.2 mi |
| 40873 | Wallins Creek | 2,167 | $33k | 5.3 mi |
| 40815 | Cawood | 811 | $68k | 5.7 mi |
| 40863 | Pathfork | 706 | $50k | 6.1 mi |
| 40854 | Loyall | 675 | $55k | 6.2 mi |
| 40818 | Coalgood | 148 | – | 6.4 mi |
| 40801 | Ages Brookside | 0 | – | 7.8 mi |
| 24281 | Rose Hill, VA | 1,890 | $47k | 8.5 mi |
| 40806 | Baxter | 1,732 | $60k | 9.2 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.