Fairfield, Ohio

Fairfield population, 2020 to 2024

Fairfield added 182 residents from July 2020 to July 2024, a change of +0.4%. In the latest year it moved by +267. Among 254 Ohio places of 5,000 or more, that growth ranks 86th; the median place changed by -0.4%. The median place of 5,000+ in Ohio has 13,905 people, so Fairfield is 3.2 times that size.

Fairfield covers 20.83 square miles of land and 0.09 of water, for 2,165 people per square mile of land. The median Ohio place of 5,000+ has 2,000, so Fairfield is close to the typical town.

What county Fairfield is in

All of Fairfield's residents live in Butler County, which had 399,542 residents in 2024. Fairfield holds 11.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Fairfield

1 ZIP Code Tabulation Area (ZCTA) overlaps Fairfield by at least 10% of the ZCTA's or the city's land: 45014. 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 Fairfield is

The Census internal point of Fairfield is at 39.331400, -84.542700. Columbus, the capital, is 92.9 miles ENE in a straight line. The nearest larger place is Hamilton, OH (63,953 people), 4.5 miles away. The nearest city of 100,000 or more is Cincinnati, OH, 13.4 miles away.

Daylight in Fairfield

At 39.33° N, Fairfield gets about 14 h 57 min of daylight around the June solstice and 9 h 24 min around the December solstice, a swing of 5 h 33 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Fairfield

The eight nearest incorporated places of 1,000+ in Ohio, measured between internal points. The closest is Forest Park, 3.2 miles away, with 20,033 people.