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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 Spring

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

Postal Information

ZIP Code 37172
Type Standard
Primary City Springfield
State TN
Acceptable Cities Coopertown
Unacceptable -
Time Zone America/Chicago
Area Codes 270, 364, 615, 629
Latitude 36,49° N
Longitude -86,87° 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 Springfield, TN

Postal Information

ZIP Code 37174
Type Standard
Primary City Spring Hill
State TN
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 615, 629, 931
Latitude 35,74° N
Longitude -86,92° 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 Spring Hill, TN

Postal Information

ZIP Code 37305
Type Standard
Primary City Beersheba Springs
State TN
County Grundy County
Acceptable Cities Beershba Spgs
Unacceptable -
Time Zone America/Chicago
Area Codes 931
Latitude 35,45° N
Longitude -85,67° 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 Beersheba Springs, TN

Postal Information

ZIP Code 37330
Type Standard
Primary City Estill Springs
State TN
Acceptable Cities Estill Spgs
Unacceptable -
Time Zone America/Chicago
Area Codes 931
Latitude 35,26° N
Longitude -86,13° 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 Estill Springs, TN

Postal Information

ZIP Code 37381
Type Standard
Primary City Spring City
State TN
County Rhea County
Acceptable Cities Watts Bar Dam
Unacceptable -
Time Zone America/New_York
Area Codes 423, 865, 931
Latitude 35,68° N
Longitude -84,86° 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 Spring City, TN

Postal Information

ZIP Code 37840
Type Standard
Primary City Oliver Springs
State TN
County Roane County
Acceptable Cities Oliver Spgs
Unacceptable -
Time Zone America/New_York
Area Codes 423, 865
Latitude 36,03° N
Longitude -84,32° 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 Oliver Springs, TN

Postal Information

ZIP Code 37848
Type Standard
Primary City Powder Springs
State TN
Acceptable Cities Powder Spgs
Unacceptable -
Time Zone America/New_York
Area Codes 865
Latitude 36,24° N
Longitude -83,66° 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 Powder Springs, TN

Postal Information

ZIP Code 38256
Type Standard
Primary City Springville
State TN
County Henry County
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 731, 931
Latitude 36,25° N
Longitude -88,15° 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 Springville, TN

Postal Information

ZIP Code 38311
Type Standard
Primary City Bath Springs
State TN
Acceptable Cities -
Unacceptable -
Time Zone America/Chicago
Area Codes 731, 931
Latitude 35,44° N
Longitude -88,1° 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 Bath Springs, TN

Postal Information

ZIP Code 38315
Type Standard
Primary City Bethel Springs
State TN
Acceptable Cities Bethel Spgs
Unacceptable -
Time Zone America/Chicago
Area Codes 731
Latitude 35,23° N
Longitude -88,6° 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 Bethel Springs, TN

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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.