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 Oswego

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

Postal Information

ZIP Code 13126
Type Standard
Primary City Oswego
State NY
County Oswego County
Acceptable Cities -
Unacceptable Bundyville, Demster, Fruit Valley, Furniss, Furniss Sta, North Hannibal, Oswego Center, Scriba, Scriba Center, Seneca Hill, Southwest Oswego
Time Zone America/New_York
Area Codes 315, 680
Latitude 43,45° N
Longitude -76,5° 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 Oswego, NY

Postal Information

ZIP Code 60543
Type Standard
Primary City Oswego
State IL
County Kendall County
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 331, 630
Latitude 41,69° N
Longitude -88,33° 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 Oswego, IL

Postal Information

ZIP Code 67356
Type Standard
Primary City Oswego
State KS
County Labette County
Acceptable Cities -
Unacceptable Labette
Time Zone America/Chicago
Area Codes 620
Latitude 37,16° N
Longitude -95,11° 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 Oswego, KS

Postal Information

ZIP Code 97034
Type Standard
Primary City Lake Oswego
State OR
County Clackamas County
Acceptable Cities -
Unacceptable Lake Grove, Oswego
Time Zone America/Los_Angeles
Area Codes 503, 971
Latitude 45,4° N
Longitude -122,68° 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 Lake Oswego, OR

Postal Information

ZIP Code 97035
Type Standard
Primary City Lake Oswego
State OR
County Clackamas County
Acceptable Cities Lake Grove
Unacceptable Mountain Park, Rivergrove
Time Zone America/Los_Angeles
Area Codes 503, 971
Latitude 45,41° N
Longitude -122,72° 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 Lake Oswego, OR

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.