Find the last 4 digits (ZIP+4) for an address in 50701

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ZIP Code 50701 – Waterloo, IA

Waterloo, Iowa · Black Hawk County · Central time

ZIP code50701
CityWaterloo
StateIowa
CountyBlack Hawk County
Population30,232
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area79.12 sq mi
Center (lat, long)42.4176, -92.3446

Area codes in this area

319

These are the area codes that most often serve ZIP 50701 (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

50702 Waterloo · 3.4 mi50614 Cedar Falls · 4 mi50704 Waterloo · 4 mi50707 Evansdale · 5.2 mi50634 Gilbertville · 6.6 mi50667 Raymond · 7.1 mi50643 Hudson · 7.3 mi50612 Buckingham · 9.4 mi

About ZIP 50701

ZIP code 50701 is assigned to Waterloo, Iowa. It lies in Black Hawk County. Its Census area covers about 79.12 square miles of land. The closest neighboring ZIP is 50702 (Waterloo), about 3.4 miles away.

Every address in 50701 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