ZIP Code 82644 in Mills, WY

Data Last Updated: February 1, 2026
City:Mills, Wyoming
County:Natrona County
Timezone:Mountain (GMT -07:00)
Local Time:10:07:17 AM
Population:1,861 [See All]
Area Code:307
Classification:PO Box
Coordinates:42.8436, -106.3709
Land Area:0.813 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/82644/zip-code-82644.asp

Download this data |

Download ZIP Boundaries |

82644 - Mills, WY

ZIP Code 82644, Mills

Small Town
LocationNatrona County, WY
Area1.0 sq mi
Population1,861
Households788
PO Boxes1,539 Regional Hub (195%)
Median Age35.3 years
ZIP CreatedBefore Oct 2004
Key Facts
  • Mills is designated as a PO Box Only Zone, with the post office maintaining 1,539 boxes for just 788 households in town
  • The PO Box adoption rate of 1.95 times the household count indicates the Mills post office serves surrounding rural communities beyond the town's boundaries
  • Transportation, warehousing, and utilities dominate local employment with 755 workers, reflecting Mills' position along major Wyoming highway corridors
  • Despite being classified as a PO Box ZIP, Mills has street delivery infrastructure on both city carrier routes and rural routes
  • With 23.7% of workers working from home, Mills shows significantly higher remote work rates than typical small Wyoming towns

Community Overview

Mills sits just across the North Platte River from Casper, Wyoming's second-largest city. This small town of 1,861 residents occupies just over one square mile in Natrona County. Despite its compact size, the Mills post office maintains 1,539 PO Boxes for only 788 households. That's nearly twice as many boxes as homes.

PO Box Only Zone

This is a PO Box Only Zone. There's no alternative mail delivery across the area. The high adoption rate shows Mills serves communities beyond its own borders, likely including rural areas and nearby unincorporated communities that lack their own postal infrastructure.

Working-Class Character

Mills has a working-class character. Median household income sits at $57,019, and the town centers on transportation and logistics. Of local workers, 755 are employed in transportation, warehousing, and utilities. That's the dominant employment sector by far. The town sits along major highway corridors connecting Casper to the rest of Wyoming, which explains the transportation focus.

Street Patterns and Delivery

Street delivery exists on a mixed urban and rural pattern. SW Wyoming Boulevard carries 137 delivery records, the most of any street. W Yellowstone Highway has 41 records. The numbered grid (3rd Avenue, 4th Avenue, 5th Avenue) shows an established town layout, while streets like Poison Spider Road and Oregon Trail hint at Wyoming's frontier heritage.

Demographics and Housing

Nearly a quarter of workers (23.7%) work from home, well above national averages. The median age of 35.3 suggests a working-age population rather than retirees. About 66% of housing units are owner-occupied, with median home values around $167,900. Mobile homes account for 320 of the housing units, typical for Wyoming working communities.

Street Name Patterns

Numbered Grid Geographic Names Highway Corridors Frontier Heritage

Street names mix a traditional numbered grid with Wyoming geographic and frontier references like Yellowstone Highway, Oregon Trail, and Poison Spider Road.

Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 82644 has 1,861 residents and 788 households (average 2.36 persons per household). The median age is 35.3 years, younger than the state (38.7) and younger than the nation (38.8). The gender split is 52.2% male and 47.8% female, which is higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (87.9%, much higher than the national average of 61.6%) and Hispanic or Latino (10.4%); Hispanic or Latino residents make up 10.4%, which is much lower than the national average (18.7%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:1,861Source: Census DHC
2024 ACS Population Estimate:2,098Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:2,289.1 people per sq mile
Average Income:$53,750Source: Census ACS
Households:788Source: Census DHC
Average House Value:$175,900Source: Census ACS
Persons Per Household:2.36Source: Census DHC
Average Family Size:3.28Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--1,4351,4481,4781,5491,6761,6501,6571,7221,5891,6261,5901,7391,8902,098
Decennial Census1,480------------------1,861--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 35.3

Male Median Age: 34.6

Female Median Age: 35.7

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male748772694264836347375377683636312112
Female60765144546285613248594467533231228
Total1341631231139612616812479851121211358968624320
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:1,63583.89%
Black:211.08%
Hispanic:*1939.90%
Asian:50.26%
American Indian:402.05%
Hawaiian:00%
Other:552.82%
Total:1,949100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:97252.23%34.6 years
Females:88947.77%35.7 years
Total:1,861100%35.3 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:2,04397.38%
Native, born in PR, Island Areas, or abroad:00.00%
Foreign born, naturalized U.S. citizen:552.62%
Foreign born, not a U.S. citizen:02.62%
Total Population:2,098100%
Total Native Population:2,04397.38%
Total Foreign-born Population:552.62%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $53,750, which is much lower than the national median ($80,734), is up $22,213 (70.4%) since 2011 and above its 2019 pre-pandemic level by $16,761. Family households earn a median of $77,818 versus $36,375 for nonfamily households (a difference of $41,443). By gender, male median income is $83,750 and female is $41,023, which is far less than the national female median ($55,274), with a current gap of $42,727 that has widened from 2011 to 2024. The labor-force participation rate is 59.9%, which is tends to be lower than the national rate (63.5%). The unemployment rate is 12.9%, which is considerably above the national rate (5.2%). The largest occupation group is Sales (30.6%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$31,537$36,518$36,111$36,107$40,000$37,039$41,473$43,750$36,989$46,825$49,127$60,685$57,019$53,750
Median Family Income$37,279$39,828$41,838$41,140$46,786$50,644$48,750$53,889$48,580$47,250$49,504$72,109$75,185$77,818
Median NonFamily Income$26,875$25,815$22,150$22,619$16,842$18,000$23,079$23,098$19,764$0$0$59,545$45,479$36,375
Median Male Income$30,992$31,902$34,250$42,327$0$42,716$48,036$52,109$46,944$83,071$92,857$83,304$89,107$83,750
Median Female Income$25,682$22,135$21,893$20,114$0$28,073$24,830$32,173$32,500$31,675$32,451$36,851$40,313$41,023
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:80752.13%
Unemployed:1207.75%
Not In Labor Force:62140.12%
Total:1,548100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:22327.63%
Service:718.80%
Sales and Office:24730.61%
Natural resources, construction, and maintenance:13516.73%
Production, transportation, and material moving:13116.23%
Total Civilian Employed Population:807100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $175,900, which is far less than the national median ($332,700), is up $80,800 (84.96%) since 2011 and above its 2019 pre-pandemic level by $74,000. The median gross rent is $1,033, which is considerably lower than the national median ($1,413), is up $320 (44.88%) since 2011 and above its 2019 pre-pandemic level by $223. Of occupied housing, owners make up 73.90% (57.68% with a mortgage, 42.32% free-and-clear) and renters 26.10% - making this ZIP Code under national rental averages. The vacancy rate is 6.20%, which is considerably lower than the national rate (10.12%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$95,100$99,100$101,500$118,600$109,800$106,100$124,200$120,800$101,900$131,600$137,200$157,900$167,900$175,900
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:114.64%
$500 to $999:8033.76%
$1,000 to $1,499:11548.52%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:3113.08%
Total:237100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$713$739$745$831$779$809$873$863$810$794$807$815$976$1,033
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):38742.62%
Owner Occupied (free and clear, no mortgage):28431.28%
Renter Occupied:23726.10%
Total Occupied Housing Units:908100%

Occupied Housing Units:90893.80%
Vacant Housing Units (not graphed):606.20%
Total Housing Units:968100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:53555.27%
Multi-Family Units:12613.02%
Other Units:30731.71%
Total Housing Units:968100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 12.90% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 88.90%, which is comparable to the national rate (89.60%). The uninsured rate is 9.70%, which is comparable to the national rate (8.40%). The share of people in poverty is 10.50%, which is comparable to the national rate (8.80%), down 5.20 percentage points since 2011 and below its 2019 pre-pandemic level by 3.20 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (60.44%). College enrollment is 3.43%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:1027.31%
9th to 12th grade, no diploma:533.80%
High school graduate (includes equivalency):46133.05%
Some college, no degree:44832.11%
Associate's degree:15110.82%
Bachelor's degree:14010.04%
Graduate or professional degree:402.87%
Total:1,395100%
High school or higher:1,24088.89%
Bachelor's degree or higher:18012.90%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:1,42059.09%
Public Insurance:78032.46%
No Insurance:2038.45%
Total:2,403100%
Has Health Insurance:2,20091.55%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty9.6%12.9%13.7%10.8%12.6%12.8%7.6%11.1%7.6%5.8%5.1%5.1%4.4%10.5%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:00.00%
Elementary school (grades 1-8):38860.44%
High school (grades 9-12):23236.14%
College or graduate school:223.43%
Total:642100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):62096.57%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 82644 supports both business and residential activity. According to the Business Census (2024), there are 112 business establishments, employing about 1,113 people with an annual payroll of $65,052,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:1,855Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:112Source: CBP
1st Quarter Payroll:$16,084,000Source: CBP
Annual Payroll:$65,052,000Source: CBP
# of Employees:1,113Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 82644 is located in Natrona County, Wyoming, within the Casper, WY Metropolitan Statistical Area (CBSA 16220). This Metro area has a population of 75,450 people, about 2.47% of whom live in ZIP Code 82644. It covers 0.813 sq mi of land and a water area of 0.044 sq mi.

CBSA Name:Casper, WYSource: Census
CBSA Number:16220Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:75,450Source: Census
MSA:Casper, WY MSASource: Census
Land Area:0.813 sq miSource: Census
Water Area:0.044 sq miSource: Census
Congressional District:No DistrictsSource: USPS
Congressional Land Area: sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:5653460Source: Census
Place Name:Mills town; WyomingSource: Census

Adjacent & Nearby ZIP Codes


82646 | | 82643

Schools in ZIP Code 82644


We could not locate which school district 82644 belongs to, but we will update this once new district data is released. There are 1 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Wyoming Classical Academy 420 2nd Street
Mills, WY 82644
Mount Hope Lutheran School 2300 S Hickory St
Casper, WY 82604
District: Private SchoolNearby
St Anthony Tri-Parish Catholic School 1145 W 20th St
Casper, WY 82604
District: Private SchoolNearby
Montessori School Of Casper 417 S Elm
Casper, WY 82601
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 82644


Casper College 125 College Drive
Casper, WY 82601-4699
Type: Post Secondary
Central Wyoming College 2660 Peck Avenue
Riverton, WY 82501
Type: Post Secondary
Wyotech 1889 Venture Drive
Laramie, WY 82070-9519
Type: Post Secondary
University Of Wyoming Corner Of Ninth And Ivinson
Laramie, WY 82071
Type: Post Secondary
Eastern Wyoming College 3200 West C St
Torrington, WY 82240-1699
Type: Post Secondary
Northern Wyoming Community College District 1 Whitney Way
Sheridan, WY 82801
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov