Residential delivery area · Kentucky
ZIP Code 42120: Adolphus, KY
ZIP code 42120 uses the postal name Adolphus, Kentucky and lies entirely in Allen County (Census 2020 ZIP-county file). About 2,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,958 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Adolphus · its only residential ZIP
- County
- Allen County
- Metro area
- Bowling Green, KY
- House district
- KY-1 119th Congress
- State
- Kentucky
- Time zone
- Central
- Land area
- 43.2 sq mi · 63 people per sq mi
Where is ZIP code 42120?
42120 centers on 36.676°, -86.283° and covers 43.2 square miles of land plus 0.2 of water. It borders 3 ZIP codes: 37186, 42164, 42134.
The map draws ZIP code areas only. For the streets inside 42120, 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 42120 compare with the rest of Allen County?
| Measure | 42120 | In Allen County | In KY |
|---|---|---|---|
| People (ACS 2020-2024) | 2,745 | 4th of 6 | 276th of 780 |
| Median household income | $65k | 2nd of 5 | 132nd of 310 |
| Median home value | $179k | 4th of 4 | 144th of 320 |
Its median household income is higher than in 38% of U.S. residential ZIP codes, and it is denser than 46% 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 42120?
The 2020 Census counted 2,523 people in 42120; the ACS, which samples households over 2020-2024, estimates 2,745. Between the 2010 and 2020 censuses its population fell 2.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,745±579 (90% margin)
- 2020 Census count
- 2,523−2.5% since 2010 (2,588)
- Households
- 896
- Median age
- 38.1
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 42120?
Of the 2,745 people the ACS estimates in 42120, 26.7% are under 18 and 10.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (95.8%).
- Under 1826.7%
- 18 to 6463.4%
- 65 and older10.0%
- White, not Hispanic95.8%
- Other or two or more3.5%
- Hispanic or Latino0.5%
- Asian, not Hispanic0.1%
- Black, 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 42120 earn?
Median household income is $64,958 (ACS 2020-2024), the 2nd highest of the 5 ranked ZIP codes in Allen County. It rose from $47,918 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $64,958±$8,510
- Income per person
- $25,838
- Below the poverty line
- 7.7%
- Unemployed (of the labor force)
- 8.4%
- Adults 25+ with a bachelor's degree
- 26.2%
- Adjusted gross income per tax return, 2022
- $49,520940 returns; wages 82% 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 42120?
- Median home value (owners' estimate)
- $178,500
- Median gross rent
- $859
- Homes owned by their occupants
- 92.1%
- Housing units
- 1,111
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 42120?
10 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction3
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 42120?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 37186 | Westmoreland, TN | 10,709 | $60k | 6.4 mi |
| 42164 | Scottsville | 17,673 | $60k | 8.6 mi |
| 42134 | Franklin | 19,380 | $59k | 15.9 mi |
| 37022 | Bethpage, TN | 5,728 | $79k | 11.3 mi (near) |
| 42122 | Alvaton | 5,513 | $114k | 13.1 mi (near) |
| 42153 | Holland | 18 | – | 13.1 mi (near) |
| 37148 | Portland, TN | 26,274 | $82k | 13.8 mi (near) |
| 42104 | Bowling Green | 42,076 | $75k | 16.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.