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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 Rockwood

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

Postal Information

ZIP Code 04478
Type Standard
Primary City Rockwood
State ME
County Somerset County
Acceptable Cities Little W Twp, Pittstn Acdmy, Pittston Academy Grant Twp, Plymouth Twp, Seboomook Twp, Tomhegan Twp
Unacceptable -
Time Zone America/New_York
Area Codes 207
Latitude 45,67° N
Longitude -69,74° 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 Rockwood, ME

Postal Information

ZIP Code 15557
Type Standard
Primary City Rockwood
State PA
County Somerset County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 582, 724, 814, 878
Latitude 39,91° N
Longitude -79,15° 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 Rockwood, PA

Postal Information

ZIP Code 37854
Type Standard
Primary City Rockwood
State TN
County Roane County
Acceptable Cities Ozone
Unacceptable Westel
Time Zone America/New_York
Area Codes 423, 865, 931
Latitude 35,87° N
Longitude -84,67° 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 Rockwood, TN

Postal Information

ZIP Code 48173
Type Standard
Primary City Rockwood
State MI
County Wayne County
Acceptable Cities Brownstown, Brownstown Township, Brownstwn Twp, Gibraltar
Unacceptable Brownstown Twp
Time Zone America/Detroit
Area Codes 734
Latitude 42,07° N
Longitude -83,24° 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 Rockwood, MI

Postal Information

ZIP Code 48179
Type Standard
Primary City South Rockwood
State MI
County Monroe County
Acceptable Cities S Rockwood
Unacceptable -
Time Zone America/Detroit
Area Codes 734
Latitude 42,06° N
Longitude -83,26° 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 South Rockwood, MI

Postal Information

ZIP Code 62280
Type Standard
Primary City Rockwood
State IL
County Randolph County
Acceptable Cities -
Unacceptable Glenn
Time Zone America/Chicago
Area Codes 573, 618
Latitude 37,85° N
Longitude -89,65° 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 Rockwood, IL

Postal Information

ZIP Code 76873
Type Standard
Primary City Rockwood
State TX
County Coleman County
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 325
Latitude 31,5° N
Longitude -99,37° 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 Rockwood, TX

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.