Find the last 4 digits (ZIP+4) for an address in 50401

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ZIP Code 50401 – Mason City, IA

Mason City, Iowa · Cerro Gordo County · Central time

ZIP code50401
CityMason City
StateIowa
CountyCerro Gordo County
Population28,703
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area148.17 sq mi
Center (lat, long)43.1541, -93.1998

Area codes in this area

641

These are the area codes that most often serve ZIP 50401 (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

50402 Mason City · 0.1 mi50467 Rock Falls · 7.7 mi50464 Plymouth · 9.1 mi50458 Nora Springs · 9.5 mi50456 Manly · 9.5 mi50428 Clear Lake · 9.7 mi50469 Rockwell · 10.7 mi50477 Swaledale · 13.2 mi

About ZIP 50401

ZIP code 50401 is assigned to Mason City, Iowa. It lies in Cerro Gordo County. Its Census area covers about 148.17 square miles of land. The closest neighboring ZIP is 50402 (Mason City), about 0.1 miles away.

Every address in 50401 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