Dayton, Ohio

Dayton population, 2020 to 2024

Dayton lost 1,207 residents from July 2020 to July 2024, a change of -0.9%. In the latest year it moved by +410. Among 254 Ohio places of 5,000 or more, that growth ranks 155th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Dayton is 9.8 times that size.

Dayton covers 55.81 square miles of land and 1.15 of water, for 2,443 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Dayton is denser than the typical town.

What county Dayton is in

All of Dayton's residents live in Montgomery County, which had 537,443 residents in 2024. Dayton holds 25.4% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Dayton

17 ZIP Code Tabulation Areas (ZCTAs) overlap Dayton by at least 10% of the ZCTA's or the city's land: 45377, 45402, 45403, 45404, 45405, 45406, 45409, 45410, 45414, 45417, 45419, 45420, 45423, 45424, 45428, 45432, 45469. 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 Dayton is

The Census internal point of Dayton is at 39.784700, -84.199600. Columbus, the capital, is 64.7 miles ENE in a straight line. The nearest larger place is Cincinnati, OH (314,915 people), 47.4 miles away. The ground at the internal point is about 230 m (755 ft) above sea level.

Daylight in Dayton

At 39.78° N, Dayton gets about 15 h 00 min of daylight around the June solstice and 9 h 21 min around the December solstice, a swing of 5 h 39 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026. Month-by-month sunrise and sunset times are on the Dayton daylight page.

Places near Dayton

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Riverside, 4.0 miles away, with 24,472 people.