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U.S. ZIP Codes Database 2026

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ZIP Code Details for Riverdale

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

Postal Information

ZIP Code 07457
Type Standard
Primary City Riverdale
State NJ
County Morris County
Acceptable Cities -
Unacceptable Pompton Junction
Time Zone America/New_York
Area Codes 862, 973
Latitude 40,99° N
Longitude -74,3° 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 Riverdale, NJ

Postal Information

ZIP Code 20737
Type Standard
Primary City Riverdale
State MD
County Prince George's County
Acceptable Cities Riverdale Park, Riverdale Pk
Unacceptable -
Time Zone America/New_York
Area Codes 227, 240, 301
Latitude 38,96° N
Longitude -76,92° 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 Riverdale, MD

Postal Information

ZIP Code 20738
Type Po Box
Primary City Riverdale
State MD
County Prince George's County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 240
Latitude 38,96° N
Longitude -76,92° 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 Riverdale, MD

Postal Information

ZIP Code 30274
Type Standard
Primary City Riverdale
State GA
County Clayton County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 404, 470, 678, 770, 943
Latitude 33,56° N
Longitude -84,4° 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 Riverdale, GA

Postal Information

ZIP Code 30296
Type Standard
Primary City Riverdale
State GA
County Clayton County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 404, 470, 678, 770, 943
Latitude 33,56° N
Longitude -84,44° 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 Riverdale, GA

Postal Information

ZIP Code 48877
Type Standard
Primary City Riverdale
State MI
County Gratiot County
Acceptable Cities -
Unacceptable -
Time Zone America/Detroit
Area Codes 989
Latitude 43,38° N
Longitude -84,83° 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 Riverdale, MI

Postal Information

ZIP Code 58565
Type Standard
Primary City Riverdale
State ND
County McLean County
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 701
Latitude 47,49° N
Longitude -101,36° 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 Riverdale, ND

Postal Information

ZIP Code 60827
Type Standard
Primary City Riverdale
State IL
County Cook County
Acceptable Cities Calumet Park, Chicago
Unacceptable -
Time Zone America/Chicago
Area Codes 464, 708, 773, 872
Latitude 41,64° N
Longitude -87,63° 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 Riverdale, IL

Postal Information

ZIP Code 68870
Type Standard
Primary City Riverdale
State NE
County Buffalo County
Acceptable Cities -
Unacceptable Gardner, Prairie Center, Thornton
Time Zone America/Chicago
Area Codes 308
Latitude 40,78° N
Longitude -99,16° 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 Riverdale, NE

Postal Information

ZIP Code 93656
Type Standard
Primary City Riverdale
State CA
County Fresno County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 559
Latitude 36,48° N
Longitude -119,94° 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 Riverdale, CA

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.