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zipcodes.pro — CITY/WY/MILLS

Mills ZIP code, Wyoming

The ZIP code for Mills, WY is 82644, and its area code is 307.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
4,390
Area code
307
State
Wyoming

NANPA lists no telephone rate centre for Mills itself, so these are the area codes of the nearest one, Casper (3.3 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Mills uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Mills in numbers

About 4,390 people live in Mills, in 1,847 households, the 21st-largest of Wyoming's 192 census places. The median household income is $50,656 a year, 34% below the Wyoming median of $76,176 (US: $80,734). The median owner-occupied home is valued at $174,400 (44% below the Wyoming median), and median gross rent is $1,073 a month. The median age is 36.5; 15.2% of adults 25 and over hold a bachelor's degree or higher (30.6% across Wyoming); the average commute takes 22 minutes.

Population4,390Mills4,390
Households1,847Mills1,847
Median age36.5Mills36.5Wyoming39.1US 38.9
Median household income$50,656Mills$50,656Wyoming$76,176US $80,734
Median home value$174,400Mills$174,400Wyoming$309,700US $332,700
Median gross rent$1,073Mills$1,073Wyoming$992US $1,413
Bachelor's degree or higher15.2%Mills15.2%Wyoming30.6%US 35.7%
Mean commute21.9 minMills21.9 minWyoming18.8 minUS 26.4 min
Population density862 / sq miMills862 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Mills town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Mills

ZIP codes with the USPS city name Mills
ZIP City Type Population Median income Median home
82644 Mills , WY Standard 2,098 $53,750 $175,900

Other ZIP codes overlapping Mills

These ZIP codes cover part of Mills but are addressed as somewhere else.

ZIP codes overlapping Mills
ZIP City Type Population Median income Median home
82601 Casper , WY Standard 26,721 $67,642 $249,100
82604 Casper , WY Standard 27,487 $79,118 $288,900

Map of Mills ZIP codes

82644

The ZIP codes of Mills, WY, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Mills

The nearest larger towns are Casper (58,839 people, 3.6 mi), Douglas (6,420 people, 51 mi) and Rawlins (8,129 people, 85 mi).

Towns near Mills
TownPopulationDistance
Casper 58,839 3.6 mi
Bar Nunn 3,008 5.4 mi
Evansville 2,779 6.5 mi
Glenrock 2,941 26.8 mi

More nearby: every ZIP code in Natrona County · Wyoming ZIP codes

Cite this page

zipcodes.pro. “Mills, WY ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wy/mills

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