Find the last 4 digits (ZIP+4) for an address in 53548

ZIP 53548, Janesville, WI is filled in. Just type the street address.

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

ZIP Code 53548 – Janesville, WI

Janesville, Wisconsin · Rock County · Central time

ZIP code53548
CityJanesville
StateWisconsin
CountyRock County
Population19,916
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area74.98 sq mi
Center (lat, long)42.6893, -89.1313

Area codes in this area

353608

These are the area codes that most often serve ZIP 53548 (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

53537 Footville · 4.2 mi53542 Hanover · 4.2 mi53545 Janesville · 5.7 mi53547 Janesville · 5.8 mi53501 Afton · 6.6 mi53576 Orfordville · 6.8 mi53536 Evansville · 8.5 mi53546 Janesville · 9.6 mi

About ZIP 53548

ZIP code 53548 is assigned to Janesville, Wisconsin. It lies in Rock County. Its Census area covers about 74.98 square miles of land. The closest neighboring ZIP is 53537 (Footville), about 4.2 miles away.

Every address in 53548 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