U.S. postal lookup

U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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ZIP Code Details for West

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

Postal Information

ZIP Code 16950
Type Standard
Primary City Westfield
State PA
County Tioga County
Acceptable Cities Cowanesque, Harrison Twp, Little Marsh
Unacceptable Brookfield, Elmer, North Fork, Potter Brook
Time Zone America/New_York
Area Codes 582, 607, 814
Latitude 41,91° N
Longitude -77,54° 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 Westfield, PA

Postal Information

ZIP Code 17583
Type Po Box
Primary City West Willow
State PA
County Lancaster County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 717
Latitude 39,89° N
Longitude -76,32° 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 Willow, PA

Postal Information

ZIP Code 17778
Type Standard
Primary City Westport
State PA
County Clinton County
Acceptable Cities -
Unacceptable Bitumen, Cooks Run, East Keating, Keating
Time Zone America/New_York
Area Codes 272, 570, 582, 814
Latitude 41,3° N
Longitude -77,84° 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 Westport, PA

Postal Information

ZIP Code 17886
Type Standard
Primary City West Milton
State PA
County Union County
Acceptable Cities Lewisburg, New Columbia
Unacceptable W Milton
Time Zone America/New_York
Area Codes 272, 570
Latitude 41,02° N
Longitude -76,88° 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 Milton, PA

Postal Information

ZIP Code 18256
Type Po Box
Primary City Weston
State PA
County Luzerne County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 272, 570
Latitude 40,94° N
Longitude -76,15° 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 Weston, PA

Postal Information

ZIP Code 19380
Type Standard
Primary City West Chester
State PA
County Chester County
Acceptable Cities West Bradford
Unacceptable W Chester
Time Zone America/New_York
Area Codes 484, 610, 835
Latitude 39,99° N
Longitude -75,6° 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 Chester, PA

Postal Information

ZIP Code 19381
Type Po Box
Primary City West Chester
State PA
County Chester County
Acceptable Cities -
Unacceptable Gay Street, W Chester
Time Zone America/New_York
Area Codes 484
Latitude 39,95° N
Longitude -75,6° 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 Chester, PA

Postal Information

ZIP Code 19382
Type Standard
Primary City West Chester
State PA
County Chester County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 484, 610, 835
Latitude 39,93° N
Longitude -75,61° 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 Chester, PA

Postal Information

ZIP Code 19383
Type Unique
Primary City West Chester
State PA
County Chester County
Acceptable Cities -
Unacceptable West Chester University
Time Zone America/New_York
Area Codes 484, 610, 835
Latitude 39,95° N
Longitude -75,6° 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 Chester, PA

Postal Information

ZIP Code 19388
Type Unique
Primary City West Chester
State PA
County Chester County
Acceptable Cities -
Unacceptable Qvc Network Inc
Time Zone America/New_York
Area Codes 484
Latitude 39,96° N
Longitude -75,61° 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 Chester, PA

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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.