Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/OH/UNION-CITY

Union City ZIP code, Ohio

The ZIP code for Union City, OH is 45390, and its area code is 937.

USPS city name
1 ZIP code
Population
1,519
Area code
937
State
Ohio

Union City in numbers

About 1,519 people live in Union City, in 688 households. The median household income is $32,067 a year, 55% below the Ohio median of $71,389 (US: $80,734). The median owner-occupied home is valued at $72,100 (66% below the Ohio median), and median gross rent is $622 a month. The median age is 44.9; 4.3% of adults 25 and over hold a bachelor's degree or higher (31.5% across Ohio); the average commute takes 24 minutes.

Population1,519Union City1,519
Households688Union City688
Median age44.9Union City44.9Ohio39.7US 38.9
Median household income$32,067Union City$32,067Ohio$71,389US $80,734
Median home value$72,100Union City$72,100Ohio$214,800US $332,700
Median gross rent$622Union City$622Ohio$1,034US $1,413
Bachelor's degree or higher4.3%Union City4.3%Ohio31.5%US 35.7%
Mean commute23.9 minUnion City23.9 minOhio23.4 minUS 26.4 min
Population density1,655 / sq miUnion City1,655 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Union City village. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Union City

ZIP codes with the USPS city name Union City
ZIP City Type Population Median income Median home
45390 Union City , OH Standard 3,432 $52,150 $118,100

Map of Union City ZIP codes

The ZIP codes of Union City, OH, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Union City

The nearest larger towns are Union City, IN (3,569 people, 1.7 mi), Winchester, IN (5,284 people, 10 mi) and Greenville (12,741 people, 11 mi).

Towns near Union City
TownPopulationDistance
Union City, IN 3,569 1.7 mi
Winchester, IN 5,284 10.1 mi
Greenville 12,741 11.0 mi
Versailles 2,715 16.3 mi
St. Henry 2,741 17.4 mi
Arcanum 2,912 18.9 mi
Portland, IN 6,416 19.4 mi
Coldwater 4,191 21.3 mi
Covington 2,596 23.8 mi
Albany, IN 2,907 24.5 mi
Minster 3,182 25.5 mi
Richmond, IN 35,581 25.9 mi
New Bremen 2,787 27.2 mi
Celina 10,903 27.4 mi

More nearby: every ZIP code in Darke County · Ohio ZIP codes

Cite this page

zipcodes.pro. “Union City, OH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/oh/union-city

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