Kingsport, TN ZIP Codes, Area Codes and Address Format

City guides  |  July 15, 2026  |  2 min read

Looking up ZIP codes or writing an address in Kingsport, Tennessee? Below is a practical reference built from postal data for the city.

State

Tennessee (TN)

County

Sullivan County

Standard ZIP codes

4

Time zone

Eastern

Kingsport ZIP codes

These are the standard delivery ZIP codes for Kingsport. The city has 6 ZIP codes in total when PO Box and unique codes are included.

• 37660
• 37663
• 37664
• 37665

Area codes in Kingsport

Kingsport phone numbers use 423. A single area code keeps local numbers easy to recognize.

Sample Kingsport addresses

The street lines are invented; the city, state and ZIP codes are real. Use them for form testing, mockups and training materials, never for real orders.

How to write an address in Kingsport

• End the address with KINGSPORT, TN and the five-digit ZIP code.
• Put apartment or suite numbers at the end of the street line.
• Use USPS abbreviations such as ST, AVE and BLVD.
• Match the ZIP code to the street. Kingsport has 4 codes, so the city name alone is not enough.

More Tennessee cities

Maryville, Germantown, Knoxville, Franklin, Crossville, or see all Tennessee cities.