Delaware, Ohio

Delaware population, 2020 to 2024

Delaware added 4,809 residents from July 2020 to July 2024, a change of +11.5%. In the latest year it moved by +1,157. Among 254 Ohio places of 5,000 or more, that growth ranks 4th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Delaware is 3.3 times that size.

Delaware covers 20.24 square miles of land and 0.12 of water, for 2,298 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Delaware is denser than the typical town.

What county Delaware is in

All of Delaware's residents live in Delaware County, which had 237,966 residents in 2024. Delaware holds 19.5% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Delaware

1 ZIP Code Tabulation Area (ZCTA) overlaps Delaware by at least 10% of the ZCTA's or the city's land: 43015. 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 Delaware is

The Census internal point of Delaware is at 40.286500, -83.074900. Columbus, the capital, is 22.8 miles S in a straight line. The nearest larger place is Dublin, OH (49,456 people), 12.6 miles away. The nearest city of 100,000 or more is Columbus, OH, 21.4 miles away.

Daylight in Delaware

At 40.29° N, Delaware gets about 15 h 03 min of daylight around the June solstice and 9 h 18 min around the December solstice, a swing of 5 h 45 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Delaware

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Ostrander, 7.1 miles away, with 1,227 people.