Decatur, IL zip codes
Decatur, Illinois has 6 zip codes (4 residential, 2 PO box or single-organization). Most of it is in Macon County. Together these zip codes are home to about 79K people.
Zip codes
6
Population
79K
All zips combined
Largest zip
62521
32,665 residents
Income range
$13K–$66K
Median by zip