List of 13 Zip Codes in O'Brien County, Iowa

On this page, we'll list out the 13 O'Brien County, Iowa ZIP codes we have, including the land area and county name of each code.

Iowa is the 26th largest state by total land area, with a land area of 56,273 square miles (145,746 square kilometers) and has a total population of 3,139,508 people as of the most recent U.S. Census survey.

O'Brien County makes up approximately 1.82% of the total land area for Iowa and we have 13 zip codes for the county in our database, which you can see details of below, with land area information for each zip code.

ZIP Code Land Area (Sq. Meters) Land Area (Sq. Miles) Land Area (Sq. Kilometers)
51009 611,821 0 1
51022 204,083,000 79 204
51046 240,752,000 93 241
51047 199,490,000 77 199
51058 214,584,000 83 215
51058 214,584,000 83 215
51201 295,734,000 114 296
51201 295,734,000 114 296
51231 73,029,500 28 73
51238 118,822,000 46 119
51245 203,413,000 79 203
51248 214,497,000 83 214
51346 377,303,000 146 377

More Counties in Iowa

If you want to search and find zip codes for different counties in Iowa, the list below contains links to each of the 105 Iowa counties we have data for.

Data Source(s)

All of the zip code data on this page is sourced from the United States Census Bureau geography reference files.

Link To or Reference This Page

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If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "List of 13 Zip Codes in O'Brien County, Iowa". NameCensus.com. Accessed on May 29, 2022. http://namecensus.com/zip-codes/iowa/obrien-county/.

  • "List of 13 Zip Codes in O'Brien County, Iowa". NameCensus.com, http://namecensus.com/zip-codes/iowa/obrien-county/. Accessed 29 May, 2022

  • List of 13 Zip Codes in O'Brien County, Iowa. NameCensus.com. Retrieved from http://namecensus.com/zip-codes/iowa/obrien-county/.