Find the last 4 digits (ZIP+4) for an address in 50703

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ZIP Code 50703 – Waterloo, IA

Waterloo, Iowa · Black Hawk County · Central time

ZIP code50703
CityWaterloo
StateIowa
CountyBlack Hawk County
Population17,952
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area93.23 sq mi
Center (lat, long)42.5481, -92.2864

Area codes in this area

319

These are the area codes that most often serve ZIP 50703 (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

50623 Dewar · 4.2 mi50707 Evansdale · 4.9 mi50614 Cedar Falls · 5.5 mi50704 Waterloo · 5.5 mi50702 Waterloo · 6.1 mi50667 Raymond · 6.2 mi50626 Dunkerton · 6.4 mi50622 Denver · 9 mi

About ZIP 50703

ZIP code 50703 is assigned to Waterloo, Iowa. It lies in Black Hawk County. Its Census area covers about 93.23 square miles of land. The closest neighboring ZIP is 50623 (Dewar), about 4.2 miles away.

Every address in 50703 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