Decorah, Iowa

Decorah population, 2020 to 2024

Decorah lost 127 residents from July 2020 to July 2024, a change of -1.7%. In the latest year it moved by -4. Among 85 Iowa places of 5,000 or more, that growth ranks 74th; the median place changed by +1.1%. The median place of 5,000+ in Iowa has 9,511 people, so Decorah is 78% of it.

Decorah covers 7.24 square miles of land and 0.04 of water, for 1,030 people per square mile of land. The median Iowa place of 5,000+ has 1,363, so Decorah is less dense than the typical town.

What county Decorah is in

All of Decorah's residents live in Winneshiek County, which had 19,723 residents in 2024. Decorah holds 37.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Decorah

1 ZIP Code Tabulation Area (ZCTA) overlaps Decorah by at least 10% of the ZCTA's or the city's land: 52101. 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 Decorah is

The Census internal point of Decorah is at 43.301600, -91.784700. Des Moines, the capital, is 150.2 miles SW in a straight line. The nearest larger place is La Crosse, WI (51,049 people), 45.7 miles away. The nearest city of 100,000 or more is Rochester, MN, 60.2 miles away.

Daylight in Decorah

At 43.30° N, Decorah gets about 15 h 24 min of daylight around the June solstice and 8 h 58 min around the December solstice, a swing of 6 h 26 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Decorah

The eight nearest incorporated places of 1,000+ in Iowa, measured between internal points. The closest is Calmar, 9.3 miles away, with 1,100 people.