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U.S. ZIP Codes Database 2026

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ZIP Code Details for Mifflin

Detailed geographic and postal record lookup for the city of Mifflin.

Postal Information

ZIP Code 15122
Type Standard
Primary City West Mifflin
State PA
County Allegheny County
Acceptable Cities Pittsburgh
Unacceptable W Mifflin/Pleasant Hills
Time Zone America/New_York
Area Codes 412, 878
Latitude 40,36° N
Longitude -79,9° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of West Mifflin, PA

Postal Information

ZIP Code 15123
Type Standard
Primary City West Mifflin
State PA
County Allegheny County
Acceptable Cities -
Unacceptable W Mifflin/Pleasant Hills, West Mifflin Century Mall
Time Zone America/New_York
Area Codes 412, 878
Latitude 40,35° N
Longitude -79,93° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of West Mifflin, PA

Postal Information

ZIP Code 17058
Type Standard
Primary City Mifflin
State PA
County Juniata County
Acceptable Cities -
Unacceptable Doyles Mills, Mccoysville, Nook
Time Zone America/New_York
Area Codes 223, 717
Latitude 40,51° N
Longitude -77,55° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of Mifflin, PA

Postal Information

ZIP Code 17059
Type Standard
Primary City Mifflintown
State PA
County Juniata County
Acceptable Cities -
Unacceptable Arch Rock, Cuba Mills, Denholm, East Salem, Fermanagh, Jericho Mills, Macedonia, Van Wert, Walker, Zooks Dam
Time Zone America/New_York
Area Codes 223, 717
Latitude 40,57° N
Longitude -77,39° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of Mifflintown, PA

Postal Information

ZIP Code 17844
Type Standard
Primary City Mifflinburg
State PA
County Union County
Acceptable Cities -
Unacceptable Cowan, Dice, Foresthill, Red Bank, West Buffalo, Whitesprings
Time Zone America/New_York
Area Codes 272, 570, 582, 814
Latitude 40,92° N
Longitude -77,04° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of Mifflinburg, PA

Postal Information

ZIP Code 18631
Type Po Box
Primary City Mifflinville
State PA
County Columbia County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 272, 570
Latitude 41,03° N
Longitude -76,3° W

About U.S. ZIP Codes

U.S. ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a broad region, the next two identify a sectional center facility, and the final two help pinpoint a local post office or delivery area.

Geographic Breakdown:

  • 1st Digit: Represents a group of states or a broad national region.
  • 2nd/3rd Digits: Represent a regional area or large city.
  • 4th/5th Digits: Identify specific post offices or delivery zones.

ZIP Codes support physical delivery, routing analytics, geocoding, tax calculations, and location-based research.

Geographic Map of Mifflinville, PA

Postal context

About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.