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U.S. ZIP Codes Database 2026

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ZIP Code Details for Cambridge

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

Postal Information

ZIP Code 02138
Type Standard
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 617, 857
Latitude 42,38° N
Longitude -71,14° 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 Cambridge, MA

Postal Information

ZIP Code 02139
Type Standard
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities -
Unacceptable Cambridgeport, Inman Square
Time Zone America/New_York
Area Codes 617, 857
Latitude 42,36° N
Longitude -71,1° 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 Cambridge, MA

Postal Information

ZIP Code 02140
Type Standard
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities N Cambridge, North Cambridge
Unacceptable Porter Square
Time Zone America/New_York
Area Codes 339, 617, 781, 857
Latitude 42,39° N
Longitude -71,13° 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 Cambridge, MA

Postal Information

ZIP Code 02141
Type Standard
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities E Cambridge, East Cambridge
Unacceptable -
Time Zone America/New_York
Area Codes 617, 857
Latitude 42,37° N
Longitude -71,08° 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 Cambridge, MA

Postal Information

ZIP Code 02142
Type Standard
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities -
Unacceptable Kendall Square
Time Zone America/New_York
Area Codes 617, 857
Latitude 42,36° N
Longitude -71,08° 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 Cambridge, MA

Postal Information

ZIP Code 02238
Type Po Box
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities Harvard Sq, Harvard Square
Unacceptable -
Time Zone America/New_York
Area Codes 617
Latitude 42,37° N
Longitude -71,11° 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 Cambridge, MA

Postal Information

ZIP Code 02239
Type Unique
Primary City Cambridge
State MA
County Middlesex County
Acceptable Cities Com/energy Services
Unacceptable -
Time Zone America/New_York
Area Codes 617
Latitude 42,36° N
Longitude -71,1° 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 Cambridge, MA

Postal Information

ZIP Code 04923
Type Standard
Primary City Cambridge
State ME
County Somerset County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 207
Latitude 45,02° N
Longitude -69,47° 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 Cambridge, ME

Postal Information

ZIP Code 05141
Type Standard
Primary City Cambridgeport
State VT
County Windham County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 802
Latitude 43,15° N
Longitude -72,56° 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 Cambridgeport, VT

Postal Information

ZIP Code 05444
Type Standard
Primary City Cambridge
State VT
County Franklin County
Acceptable Cities -
Unacceptable Binghamville, Cambridgeboro, Cloverdale, Fletcher, Pleasant Valley
Time Zone America/New_York
Area Codes 802
Latitude 44,63° N
Longitude -72,88° 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 Cambridge, VT

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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.