Postal reference / United States

82644Mills, Wyoming

ZIP code 82644 is a United States postal code for Mills, Wyoming. Its county association is Natrona County. The map reference point is at 42.8405, -106.3659.

State / territory
Wyoming
Recorded place name
Mills
County association
Natrona
Estimated coordinate
42.8405, -106.3659
View on OpenStreetMap
ZIP prefix
826 · 21 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
0.813 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

Need the last four digits?

ZIP+4 depends on the full delivery address. A five-digit code alone cannot determine its extension.

Find ZIP+4

Explore Wyoming

Browse the other 194 ZIP codes recorded for Wyoming, sorted by code with place and county.

Wyoming directory

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
82604CasperWYNatrona1.6
82601CasperWYNatrona2.5
82605CasperWYNatrona3.2
82602CasperWYNatrona3.4
82609CasperWYNatrona4.3
82636EvansvilleWYNatrona10.5
82637GlenrockWYConverse25.4
82646NatronaWYNatrona26.0

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

Verify a mailing address

For mailing, confirm the complete street or PO Box address with USPS. A place record does not confirm delivery eligibility or the ZIP+4 extension.

Open USPS address lookup