LaSalle County, Illinois
26 ZIP codes · 1,135.14 sq mi of land · FIPS 17099
| Population | 108,714 |
|---|---|
| State | Illinois |
| FIPS code | 17099 |
| Time zone | Central |
| Land area | 1,135.14 sq mi |
| Center (lat, long) | 41.3433, -88.8859 |
Area codes in this area
These are the area codes that most often serve LaSalle 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)
Ottawa · 18,447RansomEarlvilleLelandMillingtonSerenaSheridanWedronLa SalleCedar PointDanaGrand RidgeLeonoreLostantMarseillesMendotaOglesbyPeruRutlandSenecaStreatorTonicaTriumphTroy GroveUticaWenona
ZIP codes in LaSalle County
60470 Ransom60518 Earlville60531 Leland60537 Millington60549 Serena60551 Sheridan60557 Wedron61301 La Salle61316 Cedar Point61321 Dana61325 Grand Ridge61332 Leonore61334 Lostant61341 Marseilles61342 Mendota61348 Oglesby61350 Ottawa61354 Peru61358 Rutland61360 Seneca61364 Streator61370 Tonica61371 Triumph61372 Troy Grove61373 Utica61377 Wenona
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.