Find the last 4 digits (ZIP+4) for an address in 66538

ZIP 66538, Seneca, KS is filled in. Just type the street address.

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ZIP Code 66538 – Seneca, KS

Seneca, Kansas · Nemaha County · Central time

ZIP code66538
CitySeneca
StateKansas
CountyNemaha County
Population3,602
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area136.79 sq mi
Center (lat, long)39.8506, -96.0447

Area codes in this area

785

These are the area codes that most often serve ZIP 66538 (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

66522 Oneida · 5.7 mi66404 Baileyville · 6.8 mi66408 Bern · 7.8 mi66534 Sabetha · 11.2 mi66415 Centralia · 12.2 mi66403 Axtell · 12.3 mi68345 Du Bois · 12.9 mi66417 Corning · 13.4 mi

About ZIP 66538

ZIP code 66538 is assigned to Seneca, Kansas. It lies in Nemaha County. Its Census area covers about 136.79 square miles of land. The closest neighboring ZIP is 66522 (Oneida), about 5.7 miles away.

Every address in 66538 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