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 River

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

Postal Information

ZIP Code 78071
Type Standard
Primary City Three Rivers
State TX
County Live Oak County
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 361
Latitude 28,46° N
Longitude -98,17° 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 Three Rivers, TX

Postal Information

ZIP Code 82083
Type Standard
Primary City Rock River
State WY
County Albany County
Acceptable Cities Arlington, Mcfadden
Unacceptable -
Time Zone America/Denver
Area Codes 307
Latitude 41,73° N
Longitude -105,97° 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 Rock River, WY

Postal Information

ZIP Code 82501
Type Standard
Primary City Riverton
State WY
County Fremont County
Acceptable Cities Gas Hills, Lucky Maccamp, Midval, Morton, Sand Draw
Unacceptable -
Time Zone America/Denver
Area Codes 307
Latitude 43,03° N
Longitude -108,41° 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 Riverton, WY

Postal Information

ZIP Code 82648
Type Po Box
Primary City Powder River
State WY
County Natrona County
Acceptable Cities -
Unacceptable -
Time Zone America/Denver
Area Codes 307
Latitude 43,28° N
Longitude -107,15° 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 Powder River, WY

Postal Information

ZIP Code 82935
Type Standard
Primary City Green River
State WY
County Sweetwater County
Acceptable Cities Mc Kinnon
Unacceptable -
Time Zone America/Denver
Area Codes 307
Latitude 41,51° N
Longitude -109,46° 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 Green River, WY

Postal Information

ZIP Code 83827
Type Po Box
Primary City Elk River
State ID
County Clearwater County
Acceptable Cities -
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 208, 986
Latitude 46,77° N
Longitude -116,19° 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 Elk River, ID

Postal Information

ZIP Code 83856
Type Standard
Primary City Priest River
State ID
County Bonner County
Acceptable Cities Priest Lake
Unacceptable -
Time Zone America/Los_Angeles
Area Codes 208, 236, 250, 509, 672, 778, 986
Latitude 48,38° N
Longitude -116,89° 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 Priest River, ID

Postal Information

ZIP Code 84065
Type Standard
Primary City Riverton
State UT
County Salt Lake County
Acceptable Cities Bluffdale, Herriman
Unacceptable Camp Williams, South Jordan
Time Zone America/Denver
Area Codes 385, 801
Latitude 40,5° N
Longitude -111,94° 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 Riverton, UT

Postal Information

ZIP Code 84301
Type Po Box
Primary City Bear River City
State UT
County Box Elder County
Acceptable Cities Bear River Cy
Unacceptable -
Time Zone America/Denver
Area Codes 435
Latitude 41,61° N
Longitude -112,13° 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 Bear River City, UT

Postal Information

ZIP Code 84334
Type Po Box
Primary City Riverside
State UT
County Box Elder County
Acceptable Cities -
Unacceptable -
Time Zone America/Denver
Area Codes 435
Latitude 41,79° N
Longitude -112,15° 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 Riverside, UT

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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.