Osceola County ZIP Codes

List of ZIP Codes in Osceola County

The following table lists ZIP Codes associated with Osceola County, Iowa, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude City Population Density
1 51232 43.30097 -95.8162 Ashton 713 4.5
2 51249 43.41068 -95.73203 Sibley 3,588 10.9
3 51345 43.4181 -95.43209 Harris 313 2.1
4 51350 43.30752 -95.59827 Melvin 417 3.6
5 51354 43.41267 -95.54352 Ocheyedan 1,034 4.7


About Osceola County ZIP Codes

Osceola County in Iowa (IA) is served by approximately 5 ZIP Codes. These codes cover residential neighborhoods, business districts, and rural areas that fall under the county's jurisdiction.

Based on ZIP-level population estimates, the total population covered by these ZIP Codes is around 6,065 people. Population and density values vary from one ZIP Code to another, reflecting the mix of dense urban communities and lower-density suburban or rural zones.

Many of the most significant population centers in Osceola County are located in cities such as Sibley, Ocheyedan, Ashton, Melvin, Harris. These cities and towns help define the economic and demographic character of the county.

Most ZIP Codes in Osceola County, Iowa follow the America/Chicago time zone.