Find the last 4 digits (ZIP+4) for an address in 18631

ZIP 18631, Mifflinville, PA is filled in. Just type the street address.

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

ZIP Code 18631 – Mifflinville, PA

Mifflinville, Pennsylvania · Columbia County · Eastern time

ZIP code18631
CityMifflinville
StatePennsylvania
CountyColumbia County
Population1,100
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area1.42 sq mi
Center (lat, long)41.0307, -76.3028

Area codes in this area

272570

These are the area codes that most often serve ZIP 18631 (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

18603 Berwick · 4.6 mi18635 Nescopeck · 5.3 mi17815 Bloomsburg · 6.6 mi18601 Beach Haven · 7.1 mi18246 Rock Glen · 7.6 mi17859 Orangeville · 7.8 mi17985 Zion Grove · 8.4 mi18241 Nuremberg · 9.3 mi

About ZIP 18631

ZIP code 18631 is assigned to Mifflinville, Pennsylvania. It lies in Columbia County. Its Census area covers about 1.42 square miles of land. The closest neighboring ZIP is 18603 (Berwick), about 4.6 miles away.

Every address in 18631 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