Find the last 4 digits (ZIP+4) for an address in 52309

ZIP 52309, Monmouth, IA is filled in. Just type the street address.

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ZIP Code 52309 – Monmouth, IA

Monmouth, Iowa · Jackson County · Central time

ZIP code52309
CityMonmouth
StateIowa
CountyJackson CountyJones County
Population443
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area34.27 sq mi
Center (lat, long)42.1317, -90.8886

Area codes in this area

563

These are the area codes that most often serve ZIP 52309 (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

52207 Baldwin · 4 mi52321 Onslow · 4.9 mi52362 Wyoming · 7.7 mi52212 Center Junction · 10.4 mi52323 Oxford Junction · 10.7 mi52060 Maquoketa · 10.9 mi52032 Bernard · 11.2 mi52033 Cascade · 11.7 mi

About ZIP 52309

ZIP code 52309 is assigned to Monmouth, Iowa. It crosses 2 counties; most of its land is in Jackson County. Its Census area covers about 34.27 square miles of land. The closest neighboring ZIP is 52207 (Baldwin), about 4 miles away.

Every address in 52309 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