Residential delivery area · Ohio
ZIP Code 45390: Union City, OH
ZIP code 45390 uses the postal name Union City, Ohio and lies entirely in Darke County (Census 2020 ZIP-county file). About 3,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $52,150 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Union City; 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Union City · its only residential ZIP
- County
- Darke County
- Census places
- Union City
- Micro area
- Greenville, OH
- House district
- OH-8 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 53.6 sq mi · 64 people per sq mi
Where is ZIP code 45390?
45390 centers on 40.215°, -84.761° and covers 53.6 square miles of land plus 0.1 of water. It borders 6 ZIP codes: 47390, 45303, 45362, 45348, 45331, 45846.
The map draws ZIP code areas only. For the streets inside 45390, 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 45390 compare with the rest of Darke County?
| Measure | 45390 | In Darke County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 3,432 | 9th of 23 | 635th of 1,233 |
| Median household income | $52k | 14th of 14 | 651st of 755 |
| Median home value | $118k | 13th of 13 | 728th of 810 |
Its median household income is higher than in 17% 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 45390?
The 2020 Census counted 3,269 people in 45390; the ACS, which samples households over 2020-2024, estimates 3,432. Between the 2010 and 2020 censuses its population fell 5.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,432±358 (90% margin)
- 2020 Census count
- 3,269−5.5% since 2010 (3,461)
- Households
- 1,311
- Median age
- 34.2
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 45390?
Of the 3,432 people the ACS estimates in 45390, 25.1% are under 18 and 19.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (86.8%), then Hispanic or Latino (10.9%).
- Under 1825.1%
- 18 to 6455.6%
- 65 and older19.3%
- White, not Hispanic86.8%
- Hispanic or Latino10.9%
- Other or two or more2.2%
- Black, not Hispanic0.1%
- 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 45390 earn?
Median household income is $52,150 (ACS 2020-2024), the 14th highest of the 14 ranked ZIP codes in Darke County. It is not measurably different from 2015-2019 ($50,294 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $52,150±$9,352
- Income per person
- $31,178
- Below the poverty line
- 18.3%
- Unemployed (of the labor force)
- 7.7%
- Adults 25+ with a bachelor's degree
- 12.2%
- Adjusted gross income per tax return, 2022
- $50,6231,370 returns; wages 73% 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 45390?
- Median home value (owners' estimate)
- $118,100
- Median gross rent
- $641
- Homes owned by their occupants
- 70.2%
- Housing units
- 1,500
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 45390?
53 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction11
- Transportation and warehousing8
- Other services (except public administration)8
- Health care and social assistance6
- Manufacturing4
- Retail trade4
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 45390?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 47390 | Union City, IN | 4,972 | $50k | 4.6 mi |
| 45303 | Ansonia | 2,188 | $66k | 5.3 mi |
| 45362 | Rossburg | 1,071 | $62k | 8.8 mi |
| 45348 | New Weston | 848 | $120k | 9.6 mi |
| 45331 | Greenville | 22,356 | $54k | 9.9 mi |
| 45846 | Fort Recovery | 4,644 | $92k | 13.6 mi |
| 47382 | Saratoga, IN | 144 | $49k | 8.5 mi (near) |
| 45310 | Burkettsville | 227 | $78k | 11.4 mi (near) |
| 45352 | Palestine | 173 | $63k | 11.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.