Find the last 4 digits (ZIP+4) for an address in 61105

ZIP 61105, Rockford, IL is filled in. Just type the street address.

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ZIP Code 61105 – Rockford, IL

Rockford, Illinois · Winnebago County · Central time

ZIP code61105
CityRockford
StateIllinois
CountyWinnebago County
PopulationNot published (no Census ZIP area)
Time zoneCentral · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)42.2711, -89.0940

Area codes in this area

779815

These are the area codes that most often serve ZIP 61105 (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 · 1.5 mi61102 Rockford · 4.6 mi61108 Rockford · 4.8 mi61107 Rockford · 4.8 mi61103 Rockford · 4.8 mi61106 Rockford · 5.4 mi61110 Rockford · 5.4 mi61125 Rockford · 5.4 mi

About ZIP 61105

ZIP code 61105 is assigned to Rockford, Illinois. It lies in Winnebago County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 61104 (Rockford), about 1.5 miles away.

Every address in 61105 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