Find the last 4 digits (ZIP+4) for an address in 51603

ZIP 51603, Shenandoah, IA is filled in. Just type the street address.

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ZIP Code 51603 – Shenandoah, IA

Shenandoah, Iowa · Page County · Central time

ZIP code51603
CityShenandoah
StateIowa
CountyPage County
PopulationNot published (no Census ZIP area)
Time zoneCentral · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)40.7656, -95.3722

Area codes in this area

712

These are the area codes that most often serve ZIP 51603 (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

51601 Shenandoah · 2.5 mi51639 Farragut · 5.8 mi51638 Essex · 7.4 mi51645 Imogene · 8.5 mi51636 Coin · 9.9 mi51649 Randolph · 10 mi51650 Riverton · 11.1 mi51647 Northboro · 11.1 mi

About ZIP 51603

ZIP code 51603 is assigned to Shenandoah, Iowa. It lies in Page County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 51601 (Shenandoah), about 2.5 miles away.

Every address in 51603 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