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 Onia

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

Postal Information

ZIP Code 23414
Type Po Box
Primary City Nelsonia
State VA
County Accomack County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 757, 948
Latitude 37,81° N
Longitude -75,59° 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 Nelsonia, VA

Postal Information

ZIP Code 23834
Type Standard
Primary City Colonial Heights
State VA
County Colonial Heights city
Acceptable Cities Colonial Hgts, S Chesterfld, South Chesterfield
Unacceptable -
Time Zone America/New_York
Area Codes 804
Latitude 37,26° 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 Colonial Heights, VA

Postal Information

ZIP Code 28052
Type Standard
Primary City Gastonia
State NC
County Gaston County
Acceptable Cities -
Unacceptable Boogertown, Crowders, Groves, Pinkney, Ridge, Smyre, South Gastonia, Victory
Time Zone America/New_York
Area Codes 704, 803, 839, 980
Latitude 35,21° N
Longitude -81,23° 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 Gastonia, NC

Postal Information

ZIP Code 28053
Type Po Box
Primary City Gastonia
State NC
County Gaston County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 704
Latitude 35,25° N
Longitude -81,17° 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 Gastonia, NC

Postal Information

ZIP Code 28054
Type Standard
Primary City Gastonia
State NC
County Gaston County
Acceptable Cities -
Unacceptable Ragan Village, Ranlo, Spencer Mountain
Time Zone America/New_York
Area Codes 704, 980
Latitude 35,25° N
Longitude -81,17° 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 Gastonia, NC

Postal Information

ZIP Code 28055
Type Po Box
Primary City Gastonia
State NC
County Gaston County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 704
Latitude 35,25° N
Longitude -81,17° 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 Gastonia, NC

Postal Information

ZIP Code 28056
Type Standard
Primary City Gastonia
State NC
County Gaston County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 704, 803, 839, 980
Latitude 35,22° N
Longitude -81,13° 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 Gastonia, NC

Postal Information

ZIP Code 28790
Type Standard
Primary City Zirconia
State NC
County Henderson County
Acceptable Cities -
Unacceptable -
Time Zone America/New_York
Area Codes 828, 864
Latitude 35,2° N
Longitude -82,48° 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 Zirconia, NC

Postal Information

ZIP Code 30038
Type Standard
Primary City Lithonia
State GA
County DeKalb County
Acceptable Cities Stonecrest
Unacceptable -
Time Zone America/New_York
Area Codes 404, 470, 678, 770, 943
Latitude 33,67° N
Longitude -84,14° 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 Lithonia, GA

Postal Information

ZIP Code 30058
Type Standard
Primary City Lithonia
State GA
County DeKalb County
Acceptable Cities Stonecrest
Unacceptable -
Time Zone America/New_York
Area Codes 470, 678, 770, 943
Latitude 33,71° N
Longitude -84,1° 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 Lithonia, GA

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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.