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 Ark

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

Postal Information

ZIP Code 94977
Type Po Box
Primary City Larkspur
State CA
County Marin County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 415
Latitude 37,93° N
Longitude -122,53° 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 Larkspur, CA

Postal Information

ZIP Code 95389
Type Standard
Primary City Yosemite National Park
State CA
County Mariposa County
Acceptable Cities Tuolumne Mdws, Tuolumne Meadows, Wawona, Yosemite Ntpk
Unacceptable Yosemite
Time Zone America/Los_Angeles
Area Codes 209, 350, 559
Latitude 37,78° N
Longitude -119,43° 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 Yosemite National Park, CA

Postal Information

ZIP Code 95424
Type Po Box
Primary City Clearlake Park
State CA
County Lake County
Acceptable Cities Clearlake Pk
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 707
Latitude 38,97° N
Longitude -122,66° 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 Clearlake Park, CA

Postal Information

ZIP Code 95612
Type Standard
Primary City Clarksburg
State CA
County Yolo County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 279, 530, 707, 916
Latitude 38,37° N
Longitude -121,58° 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 Clarksburg, CA

Postal Information

ZIP Code 95712
Type Po Box
Primary City Chicago Park
State CA
County Nevada County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 530
Latitude 39,16° N
Longitude -120,95° 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 Chicago Park, CA

Postal Information

ZIP Code 96120
Type Standard
Primary City Markleeville
State CA
County Alpine County
Acceptable Cities Hope Valley
Unacceptable Crystal Springs, Emigrant Trail, Fredricksburg, Mesa Vista, Woodfords
Time Zone America/Los_Angeles
Area Codes 530, 775
Latitude 38,73° N
Longitude -119,84° 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 Markleeville, CA

Postal Information

ZIP Code 96718
Type Po Box
Primary City Hawaii National Park
State HI
County Hawaii County
Acceptable Cities Hi Natl Park
Unacceptable Hawaii Natl Park
Time Zone Pacific/Honolulu
Area Codes 808
Latitude 19,43° N
Longitude -155,26° 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 Hawaii National Park, HI

Postal Information

ZIP Code 97041
Type Standard
Primary City Mount Hood Parkdale
State OR
County Hood River County
Acceptable Cities Mt Hood Prkdl
Unacceptable Mount Hood, Mt Hood, Parkdale
Time Zone America/Los_Angeles
Area Codes 458, 503, 541, 971
Latitude 45,43° N
Longitude -121,63° 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 Mount Hood Parkdale, OR

Postal Information

ZIP Code 97145
Type Po Box
Primary City Tolovana Park
State OR
County Clatsop County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 503, 971
Latitude 45,86° N
Longitude -123,96° 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 Tolovana Park, OR

Postal Information

ZIP Code 97447
Type Standard
Primary City Idleyld Park
State OR
County Douglas County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 458, 541
Latitude 43,16° N
Longitude -122,21° 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 Idleyld Park, OR

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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.