Find the last 4 digits (ZIP+4) for an address in 61102

ZIP 61102, Rockford, IL is filled in. Just type the street address.

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ZIP Code 61102 – Rockford, IL

Rockford, Illinois · Winnebago County · Central time

ZIP code61102
CityRockford
StateIllinois
CountyWinnebago CountyOgle County
Population15,937
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area34.11 sq mi
Center (lat, long)42.2288, -89.1625

Area codes in this area

779815

These are the area codes that most often serve ZIP 61102 (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

61104 Rockford · 4.5 mi61105 Rockford · 4.6 mi61088 Winnebago · 5.8 mi61109 Rockford · 6 mi61106 Rockford · 6.7 mi61110 Rockford · 6.7 mi61125 Rockford · 6.7 mi61126 Rockford · 6.7 mi

About ZIP 61102

ZIP code 61102 is assigned to Rockford, Illinois. It crosses 2 counties; most of its land is in Winnebago County. Its Census area covers about 34.11 square miles of land. The closest neighboring ZIP is 61104 (Rockford), about 4.5 miles away.

Every address in 61102 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