Wilmington, Ohio

Wilmington population, 2020 to 2024

Wilmington lost 22 residents from July 2020 to July 2024, a change of -0.2%. In the latest year it moved by +37. Among 254 Ohio places of 5,000 or more, that growth ranks 115th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Wilmington is 91% of it.

Wilmington covers 12.94 square miles of land and 0.15 of water, for 977 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Wilmington is less dense than the typical town.

What county Wilmington is in

All of Wilmington's residents live in Clinton County, which had 42,019 residents in 2024. Wilmington holds 30.1% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Wilmington

1 ZIP Code Tabulation Area (ZCTA) overlaps Wilmington by at least 10% of the ZCTA's or the city's land: 45177. 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 Wilmington is

The Census internal point of Wilmington is at 39.429100, -83.816200. Columbus, the capital, is 56.9 miles NE in a straight line. The nearest larger place is Xenia, OH (26,067 people), 18.8 miles away. The nearest city of 100,000 or more is Dayton, OH, 31.9 miles away.

Daylight in Wilmington

At 39.43° N, Wilmington gets about 14 h 57 min of daylight around the June solstice and 9 h 23 min around the December solstice, a swing of 5 h 34 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Wilmington

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is New Vienna, 9.7 miles away, with 1,097 people.