Marshall County, Illinois
8 ZIP codes · 386.82 sq mi of land · FIPS 17123
| Population | 11,647 |
|---|---|
| State | Illinois |
| FIPS code | 17123 |
| Time zone | Central |
| Land area | 386.82 sq mi |
| Center (lat, long) | 41.0311, -89.3424 |
Area codes in this area
These are the area codes that most often serve Marshall 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)
TolucaVarnaCamp GroveSpeerHenryLaconLa RoseSparland
ZIP codes in Marshall County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.