County ZIP codes · Wyoming · FIPS 56017

Hot Springs County, WY ZIP Codes

Hot Springs County, Wyoming has 3 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 2 of the residential ones lie mainly in Hot Springs County and 1 mainly in a neighboring county; 1 cross the county line. Median household income ranges from $62,767 in 82443 (Thermopolis) to $65,583 in 82401 (Worland) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Where are the ZIP codes of Hot Springs County?

The residential ZIP codes of Hot Springs County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

82443 · $63k 82401 · $66k

They carry 3 postal town names: Worland, Thermopolis, Kirby.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 3 residential ZIP codes in Hot Springs County

2 ZIP codes lie mainly in Hot Springs County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Hot Springs County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
82443	Thermopolis	4,533	4	$63k	$230k	100%
82430	Kirby	77	21	$35k	$86k	100%

Partly in Hot Springs County

Residential ZIP codes mainly in another county that reach at least 1% into Hot Springs County, by their share here
						In this county
82401	Worland	7,067	13	$66k	$204k	14%

Download the 3 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

1 ZIP code of Hot Springs County extends into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Hot Springs County and in the neighboring counties
ZIP	In Hot Springs	Elsewhere
82401	14%	Washakie County 83%; Big Horn County 3%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Hot Springs County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Hot Springs County starts with 824.

Three-digit prefixes of Hot Springs County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Hot Springs County's
Prefix	Sectional center	Here	All codes
824	Casper, WY (SCF 826)	3	22

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.