Grundy County, Illinois
8 ZIP codes · 418.13 sq mi of land · FIPS 17063
| Population | 53,219 |
|---|---|
| State | Illinois |
| FIPS code | 17063 |
| Time zone | Central |
| Land area | 418.13 sq mi |
| Center (lat, long) | 41.2924, -88.4011 |
Area codes in this area
These are the area codes that most often serve Grundy County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
ZIP codes in Grundy County
60407 Braceville60416 Coal City60424 Gardner60437 Kinsman60444 Mazon60450 Morris60474 South Wilmington60479 Verona
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.