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U.S. ZIP Code 18631
5-digit United States postal code #18631, Mifflinville, PA
ZIP code 18631 is located in the city (place name) Mifflinville, сounty Columbia in the state of Pennsylvania. The population in ZIP code 18631 is 1286 and the population density is 289.3. ZIP code 18631 refers to сounty Columbia having сounty FIPS 42037, the ratio of people from different counties in this ZIP code is as follows: all county weights - 42037: 100%. In the area of the ZIP code 18631 valid time zone America/New_York.
Place Name: Mifflinville
State Abbreviation: PA
Coordinates: 41° 1' 46.488" N, 76° 18' 12.06" W
Time zone: America/New_York
County FIPS: 42037
All county weights: 42037: 100%
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All zip codes in County: Columbia
All zip codes in Place Name: Mifflinville