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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Oak Ridge, TN

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Area Code(s):865
Timezone(s):Eastern (GMT -05:00)
City Population:29,330 (More Details)
CBSA:Knoxville, TN
Congressional District(s):03
Land Area:337 square miles (county)
Water Area:8 square miles (county)

2 ZIP Codes

Oak Ridge, TN ZIP Code Boundaries

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Oak Ridge, TN Covers 2 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
37831P.O. Box00.00%

Oak Ridge, TN Demographic Information *

Total population**29,330
Male population13,842
Female population15,488
Median age (years)43.5
White Population24,619
Black Population2,381
Indian Population108
Asian Population732
Hawaiian Population9
Hispanic Population1,348
Median age (Male)41.4
Median age (Female)45.2
Total households12,772
Family households (families)7,921
Average household size2.26
Average family size2.86
Total housing units14,494
* Demographic data is based on 2010 Census for the City of OAK RIDGE.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],