Fairfield, Iowa

Fairfield population, 2020 to 2024

Fairfield added 61 residents from July 2020 to July 2024, a change of +0.6%. In the latest year it moved by +97. Among 85 Iowa places of 5,000 or more, that growth ranks 47th; the median place changed by +1.1%. The median place of 5,000+ in Iowa has 9,511 people, so Fairfield is 1.0 times that size.

Fairfield covers 6.61 square miles of land and 0.16 of water, for 1,439 people per square mile of land. The median Iowa place of 5,000+ has 1,363, so Fairfield is close to the typical town.

What county Fairfield is in

All of Fairfield's residents live in Jefferson County, which had 15,781 residents in 2024. Fairfield holds 60.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Fairfield

2 ZIP Code Tabulation Areas (ZCTAs) overlap Fairfield by at least 10% of the ZCTA's or the city's land: 52556, 52557. 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 41.006400, -91.966600. Des Moines, the capital, is 94.1 miles WNW in a straight line. The nearest larger place is Ottumwa, IA (25,648 people), 23.9 miles away. The nearest city of 100,000 or more is Cedar Rapids, IA, 67.9 miles away.

Daylight in Fairfield

At 41.01° N, Fairfield gets about 15 h 08 min of daylight around the June solstice and 9 h 13 min around the December solstice, a swing of 5 h 54 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 Iowa, measured between internal points. The closest is Mount Pleasant, 22.1 miles away, with 8,509 people.