Union, Ohio

Union population, 2020 to 2024

Union added 176 residents from July 2020 to July 2024, a change of +2.6%. In the latest year it moved by +75. Among 254 Ohio places of 5,000 or more, that growth ranks 45th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Union is 51% of it.

Union covers 8.35 square miles of land and 0.08 of water, for 847 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Union is less dense than the typical town.

The 2 counties Union spans

Union crosses county lines. The Census county-part estimates split its 7,076 residents as follows; Montgomery County holds 99.4% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

ZIP codes in Union

2 ZIP Code Tabulation Areas (ZCTAs) overlap Union by at least 10% of the ZCTA's or the city's land: 45322, 45377. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Union is

The Census internal point of Union is at 39.906600, -84.293300. Columbus, the capital, is 68.6 miles E in a straight line. The nearest larger place is Englewood, OH (13,282 people), 3.0 miles away. The nearest city of 100,000 or more is Dayton, OH, 9.8 miles away.

Daylight in Union

At 39.91° N, Union gets about 15 h 00 min of daylight around the June solstice and 9 h 20 min around the December solstice, a swing of 5 h 40 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Union

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Englewood, 3.0 miles away, with 13,282 people.