Mills is a town in Natrona County, Wyoming, home to about 4,390 people across 3.0 square miles. Its ZIP code is 82644, and parts of 82601 and 82604 are in Mills too.
All in Mills
Mostly Casper; part is in Mills
Mostly Casper; part is in Mills
Each card is that ZIP code’s whole market, including any part outside Mills. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Denver International Airport (DEN)223 miles away |
|---|---|
| Closer regional airport | Casper-Natrona County International Airport (CPR)7 miles away |
| Nearest city of 250,000+ | Denver, CO226 miles away |
| Nearest city of 1 million+ | Phoenix, AZ711 miles away |
Straight-line distances from the center of Mills; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Mills had 4,034 residents in the 2020 census, up 56% since 2000.
It’s the 21st largest of 192 towns in Wyoming by population.
Natrona County grew from 1,785 residents in 1900 to 79,955 in 2020.
Natrona County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 17°F. About 13.6 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Casper Wwtp, WY weather station (4 miles away).
31,602 jobs at 3,071 businesses in Natrona County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Mills.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (7 nearby)
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries
Museums (1 nearby)
Counts are within about 1.5 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Wyoming Classical Academy. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Wyoming Classical AcademyMills | K–7 | 298 | Charter | 0.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Casper, Bar Nunn, Hartrandt, Vista West, Red Butte, Casper Mountain, Homa Hills, Bessemer Bend, Antelope Hills and Mountain View (Natrona County).
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.