List of 12 Zip Codes in Warren County, Illinois

On this page, we'll list out the 12 Warren County, Illinois ZIP codes we have, including the land area and county name of each code.

Illinois is the 25th largest state by total land area, with a land area of 57,914 square miles (149,997 square kilometers) and has a total population of 12,770,631 people as of the most recent U.S. Census survey.

Warren County makes up approximately 1.70% of the total land area for Illinois and we have 12 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)
61401 296,372,000 114 296
61401 296,372,000 114 296
61401 296,372,000 114 296
61410 106,705,000 41 107
61412 194,420,000 75 194
61415 290,257,000 112 290
61447 95,753,200 37 96
61453 148,138,000 57 148
61462 405,163,000 156 405
61473 269,012,000 104 269
61474 73,510,200 28 74
61475 76,414,100 30 76

More Counties in Illinois

If you want to search and find zip codes for different counties in Illinois, the list below contains links to each of the 103 Illinois 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 12 Zip Codes in Warren County, Illinois". NameCensus.com. Accessed on May 17, 2022. http://namecensus.com/zip-codes/illinois/warren-county/.

  • "List of 12 Zip Codes in Warren County, Illinois". NameCensus.com, http://namecensus.com/zip-codes/illinois/warren-county/. Accessed 17 May, 2022

  • List of 12 Zip Codes in Warren County, Illinois. NameCensus.com. Retrieved from http://namecensus.com/zip-codes/illinois/warren-county/.