Polk City, Iowa

Polk City population, 2020 to 2024

Polk City added 831 residents from July 2020 to July 2024, a change of +14.8%. In the latest year it moved by +104. Among 85 Iowa places of 5,000 or more, that growth ranks 6th; the median place changed by +1.1%. The median place of 5,000+ in Iowa has 9,511 people, so Polk City is 68% of it.

Polk City covers 5.56 square miles of land and 0.24 of water, for 1,156 people per square mile of land. The median Iowa place of 5,000+ has 1,363, so Polk City is less dense than the typical town.

What county Polk City is in

All of Polk City's residents live in Polk County, which had 516,185 residents in 2024. Polk City holds 1.2% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Polk City

1 ZIP Code Tabulation Area (ZCTA) overlaps Polk City by at least 10% of the ZCTA's or the city's land: 50226. 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 Polk City is

The Census internal point of Polk City is at 41.781900, -93.722800. Des Moines, the capital, is 14.5 miles SSE in a straight line. The nearest larger place is Johnston, IA (25,022 people), 6.2 miles away. The nearest city of 100,000 or more is Des Moines, IA, 15.6 miles away.

Daylight in Polk City

At 41.78° N, Polk City gets about 15 h 13 min of daylight around the June solstice and 9 h 08 min around the December solstice, a swing of 6 h 05 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Polk City

The eight nearest incorporated places of 1,000+ in Iowa, measured between internal points. The closest is Granger, 5.1 miles away, with 2,095 people.