List of 31 Zip Codes in Knox County, Illinois

On this page, we'll list out the 31 Knox 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 12,716,164 people as of the most recent U.S. Census survey.

Knox County makes up approximately 2.55% of the total land area for Illinois and we have 31 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
61414 131,194,000 51 131
61428 85,170,700 33 85
61428 85,170,700 33 85
61430 4,486,060 2 4
61430 4,486,060 2 4
61434 204,979,000 79 205
61436 158,863,000 61 159
61439 1,757,580 1 2
61448 109,060,000 42 109
61448 109,060,000 42 109
61449 97,500,400 38 98
61458 215,185,000 83 215
61467 127,971,000 49 128
61472 102,461,000 40 102
61474 73,510,200 28 74
61485 112,122,000 43 112
61485 112,122,000 43 112
61488 66,940,800 26 67
61488 66,940,800 26 67
61489 118,243,000 46 118
61490 101,894,000 39 102
61529 165,807,000 64 166
61529 165,807,000 64 166
61531 145,827,000 56 146
61544 85,056,100 33 85
61544 85,056,100 33 85
61572 92,282,300 36 92

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 31 Zip Codes in Knox County, Illinois". NameCensus.com. Accessed on May 20, 2024. https://namecensus.com/zip-codes/illinois/knox-county/.

  • "List of 31 Zip Codes in Knox County, Illinois". NameCensus.com, https://namecensus.com/zip-codes/illinois/knox-county/. Accessed 20 May, 2024

  • List of 31 Zip Codes in Knox County, Illinois. NameCensus.com. Retrieved from https://namecensus.com/zip-codes/illinois/knox-county/.