Clear Lake, Iowa

Clear Lake population, 2020 to 2024

Clear Lake lost 64 residents from July 2020 to July 2024, a change of -0.8%. In the latest year it moved by +11. Among 85 Iowa places of 5,000 or more, that growth ranks 63rd; the median place changed by +1.1%. The median place of 5,000+ in Iowa has 9,511 people, so Clear Lake is 80% of it.

Clear Lake covers 10.78 square miles of land and 2.59 of water, for 705 people per square mile of land. The median Iowa place of 5,000+ has 1,363, so Clear Lake is less dense than the typical town.

What county Clear Lake is in

All of Clear Lake's residents live in Cerro Gordo County, which had 42,493 residents in 2024. Clear Lake holds 17.9% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Clear Lake

1 ZIP Code Tabulation Area (ZCTA) overlaps Clear Lake by at least 10% of the ZCTA's or the city's land: 50428. 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 Clear Lake is

The Census internal point of Clear Lake is at 43.135100, -93.373700. Des Moines, the capital, is 107.3 miles S in a straight line. The nearest larger place is Mason City, IA (26,948 people), 8.8 miles away. The nearest city of 100,000 or more is Rochester, MN, 75.5 miles away.

Daylight in Clear Lake

At 43.14° N, Clear Lake gets about 15 h 23 min of daylight around the June solstice and 8 h 59 min around the December solstice, a swing of 6 h 24 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Clear Lake

The eight nearest incorporated places of 1,000+ in Iowa, measured between internal points. The closest is Mason City, 8.8 miles away, with 26,948 people.