Residential delivery area · Kentucky
ZIP Code 42123: Austin, KY
ZIP code 42123 uses the postal name Austin, Kentucky and lies entirely in Barren County (Census 2020 ZIP-county file). About 1,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $61,010 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Austin · its only residential ZIP
- County
- Barren County
- Micro area
- Glasgow, KY
- House district
- KY-2 119th Congress
- State
- Kentucky
- Time zone
- Central
- Land area
- 21.9 sq mi · 52 people per sq mi
Where is ZIP code 42123?
42123 centers on 36.821°, -86.000° and covers 21.9 square miles of land plus 1.2 of water. It borders 5 ZIP codes: 42156, 42131, 42133, 42141, 42164.
The map draws ZIP code areas only. For the streets inside 42123, 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 42123 compare with the rest of Barren County?
| Measure | 42123 | In Barren County | In KY |
|---|---|---|---|
| People (ACS 2020-2024) | 1,149 | 8th of 12 | 425th of 780 |
| Median household income | $61k | not ranked | not ranked |
| Median home value | – | – | – |
42123's median household income is not ranked: its 90% margin of error (±$22,330) is more than a quarter of the figure ($61,010). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 43% of 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 42123?
The 2020 Census counted 814 people in 42123; the ACS, which samples households over 2020-2024, estimates 1,149. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 1,149±430 (90% margin)
- 2020 Census count
- 814
- Households
- 473
- Median age
- 33.0
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 42123?
Of the 1,149 people the ACS estimates in 42123, 25.8% are under 18 and 20.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.6%), then Hispanic or Latino (10.2%).
- Under 1825.8%
- 18 to 6453.4%
- 65 and older20.9%
- White, not Hispanic87.6%
- Hispanic or Latino10.2%
- Other or two or more2.2%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 42123 earn?
Median household income is $61,010 (ACS 2020-2024).
- Median household income
- $61,010±$22,330
- Income per person
- $32,949
- Below the poverty line
- 16.6%
- Unemployed (of the labor force)
- 1.5%
- Adults 25+ with a bachelor's degree
- 15.0%
- Adjusted gross income per tax return, 2022
- $52,403330 returns; wages 69% 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 42123?
- Median home value (owners' estimate)
- –
- Median gross rent
- –
- Homes owned by their occupants
- 77.6%
- Housing units
- 614
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 42123?
10 business establishments had a location in this ZIP code in 2023, 5 more than in 2018 (ZIP Code Business Patterns).
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 42123?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 42156 | Lucas | 235 | $98k | 4.0 mi |
| 42131 | Etoile | 72 | – | 5.1 mi |
| 42133 | Fountain Run | 1,456 | $62k | 7.0 mi |
| 42141 | Glasgow | 31,506 | $53k | 9.8 mi |
| 42164 | Scottsville | 17,673 | $60k | 10.6 mi |
| 42153 | Holland | 18 | – | 9.5 mi (near) |
| 42157 | Mount Hermon | 507 | $101k | 10.4 mi (near) |
| 42130 | Eighty Eight | 124 | – | 13.9 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.