Union City, OH ZIP code
The ZIP code for Union City, Ohio is 45390. It is in Darke County.
- Population in these ZIPs
- 3,432
- Avg. median income
- $52,200population-weighted
- Typical home value
- $154,100population-weighted
- Metro area
- Greenville, OH
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Union City, OH ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 45390 | 3,432 | $52,150 | $154,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Union City
- Ansonia 5 mi
- Rossburg 9 mi
- New Weston 10 mi
- Greenville 10 mi
- Burkettsville 11 mi
- Palestine 11 mi
- North Star 12 mi
- Versailles 13 mi
- Fort Recovery 14 mi
- Saint Henry 15 mi
- Hollansburg 15 mi
- Gettysburg 16 mi
Frequently asked questions
What is the ZIP code for Union City, OH?
The ZIP code for Union City, OH is 45390.
What county is Union City, Ohio in?
Union City ZIP codes are in Darke County.