Find the last 4 digits (ZIP+4) for an address in 61360

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ZIP Code 61360 – Seneca, IL

Seneca, Illinois · LaSalle County · Central time

ZIP code61360
CitySeneca
StateIllinois
CountyLaSalle CountyGrundy County
Population3,610
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area47.41 sq mi
Center (lat, long)41.3326, -88.6003

Area codes in this area

779815

These are the area codes that most often serve ZIP 61360 (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

61341 Marseilles · 5 mi60479 Verona · 7.9 mi60450 Morris · 9 mi60470 Ransom · 11.7 mi60557 Wedron · 11.7 mi60444 Mazon · 12 mi60437 Kinsman · 12.3 mi61325 Grand Ridge · 12.8 mi

About ZIP 61360

ZIP code 61360 is assigned to Seneca, Illinois. It crosses 2 counties; most of its land is in LaSalle County. Its Census area covers about 47.41 square miles of land. The closest neighboring ZIP is 61341 (Marseilles), about 5 miles away.

Every address in 61360 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