Find the last 4 digits (ZIP+4) for an address in 61370

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ZIP Code 61370 – Tonica, IL

Tonica, Illinois · LaSalle County · Central time

ZIP code61370
CityTonica
StateIllinois
CountyLaSalle County
Population1,215
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area44.6 sq mi
Center (lat, long)41.2107, -89.0388

Area codes in this area

779815

These are the area codes that most often serve ZIP 61370 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

61332 Leonore · 3.2 mi61348 Oglesby · 5.2 mi61334 Lostant · 5.4 mi61316 Cedar Point · 5.6 mi61363 Standard · 8 mi61377 Wenona · 10 mi61354 Peru · 10.1 mi61326 Granville · 10.2 mi

About ZIP 61370

ZIP code 61370 is assigned to Tonica, Illinois. It lies in LaSalle County. Its Census area covers about 44.6 square miles of land. The closest neighboring ZIP is 61332 (Leonore), about 3.2 miles away.

Every address in 61370 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources