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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Thermopolis, WY

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Area Code(s):307
Timezone(s):Mountain (GMT -07:00)
City Population:3,009 (More Details)
Congressional District(s):No Districts
Land Area:2,004 square miles (county)
Water Area:2 square miles (county)

1 ZIP Code

Thermopolis, WY ZIP Code Boundaries

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Thermopolis, WY Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
82443Standard4,697100.00%GRASS CREEK, HAMILTON DOME

Thermopolis, WY Demographic Information *

Total population**3,009
Male population1,477
Female population1,532
Median age (years)47
White Population2,901
Black Population8
Indian Population28
Asian Population15
Hawaiian Population1
Hispanic Population65
Median age (Male)44.7
Median age (Female)49
Total households1,389
Family households (families)818
Average household size2.11
Average family size2.7
Total housing units1,583
* Demographic data is based on 2010 Census for the City of THERMOPOLIS.
** 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],