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U.S. ZIP Codes Database 2026

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ZIP Code Details for Oak

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

Postal Information

ZIP Code 78951
Type Po Box
Primary City Oakland
State TX
County Colorado County
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 361, 979
Latitude 29,59° N
Longitude -96,82° 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 Oakland, TX

Postal Information

ZIP Code 80467
Type Standard
Primary City Oak Creek
State CO
County Routt County
Acceptable Cities -
Unacceptable -
Time Zone America/Denver
Area Codes 970
Latitude 40,21° N
Longitude -106,83° 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 Oak Creek, CO

Postal Information

ZIP Code 83346
Type Standard
Primary City Oakley
State ID
County Cassia County
Acceptable Cities -
Unacceptable Basin, Churchill
Time Zone America/Boise
Area Codes 208, 775, 986
Latitude 42,18° N
Longitude -113,86° 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 Oakley, ID

Postal Information

ZIP Code 84055
Type Standard
Primary City Oakley
State UT
County Summit County
Acceptable Cities -
Unacceptable -
Time Zone America/Denver
Area Codes 435
Latitude 40,81° N
Longitude -111,11° 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 Oakley, UT

Postal Information

ZIP Code 84649
Type Po Box
Primary City Oak City
State UT
County Millard County
Acceptable Cities -
Unacceptable -
Time Zone America/Denver
Area Codes 435
Latitude 39,37° N
Longitude -112,28° 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 Oak City, UT

Postal Information

ZIP Code 91358
Type Po Box
Primary City Thousand Oaks
State CA
County Ventura County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 805
Latitude 34,18° N
Longitude -118,87° 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 Thousand Oaks, CA

Postal Information

ZIP Code 91360
Type Standard
Primary City Thousand Oaks
State CA
County Ventura County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 805, 820
Latitude 34,21° N
Longitude -118,88° 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 Thousand Oaks, CA

Postal Information

ZIP Code 91362
Type Standard
Primary City Thousand Oaks
State CA
County Ventura County
Acceptable Cities Westlake Village, Westlake Vlg
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 747, 805, 818, 820
Latitude 34,19° N
Longitude -118,81° 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 Thousand Oaks, CA

Postal Information

ZIP Code 91363
Type Unique
Primary City Thousand Oaks
State CA
County Los Angeles County
Acceptable Cities -
Unacceptable Westlake Village, State Farm, Westlake Vlg
Time Zone America/Los_Angeles
Area Codes 818
Latitude 34,14° N
Longitude -118,8° 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 Thousand Oaks, CA

Postal Information

ZIP Code 91377
Type Standard
Primary City Oak Park
State CA
County Ventura County
Acceptable Cities Agoura Hills
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 747, 805, 818, 820
Latitude 34,19° N
Longitude -118,76° 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 Oak Park, CA

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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.