List of 18 Zip Codes in Union County, Iowa

On this page, we'll list out the 18 Union 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.

Union County makes up approximately 2.98% of the total land area for Iowa and we have 18 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)
50074 125,812,000 49 126
50074 125,812,000 49 126
50074 125,812,000 49 126
50149 213,331,000 82 213
50174 278,523,000 108 279
50254 113,421,000 44 113
50801 541,139,000 209 541
50801 541,139,000 209 541
50830 305,947,000 118 306
50830 305,947,000 118 306
50842 674,912 0 1
50845 284,296,000 110 284
50851 333,878,000 129 334
50851 333,878,000 129 334
50861 112,877,000 44 113
50861 112,877,000 44 113
51001 256,434,000 99 256
51023 227,891,000 88 228

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

We spent a lot of time downloading, cleaning, merging, and formatting the data that is shown on the site.

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 18 Zip Codes in Union County, Iowa". NameCensus.com. Accessed on May 29, 2022. http://namecensus.com/zip-codes/iowa/union-county/.

  • "List of 18 Zip Codes in Union County, Iowa". NameCensus.com, http://namecensus.com/zip-codes/iowa/union-county/. Accessed 29 May, 2022

  • List of 18 Zip Codes in Union County, Iowa. NameCensus.com. Retrieved from http://namecensus.com/zip-codes/iowa/union-county/.