59311 ZIP Code — Alzada, MT
Carter County, Montana
ZIP code 59311 is located in Alzada, Montana, within Carter County. It covers approximately 808.18 square miles and serves a population of 142 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 406.
142
population
808.18
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
59311 ZIP code map
Cities in ZIP code 59311
Below are the cities the US Postal Service accepts for ZIP code 59311. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Alzada | Preferred |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 142 |
| Population density | 0 / sq mi |
| State FIPS | 30 |
| County FIPS | 011 |
| Geography | |
|---|---|
| Land area | 808.18 sq mi |
| Water area | 2.32 sq mi |
| Latitude | 45.2242 |
| Longitude | -104.2629 |
| Timezone | Mountain (MT) |
| Area code | 406 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 56.8% | 54.6% | 44.2% |
| $50k – $100k | 34.6% | 33.7% | 32.0% |
| $100k – $200k | 4.9% | 9.5% | 19.2% |
| Over $200k | 3.7% | 2.2% | 4.7% |
Demographics & statistics
142
Population
56.8
Median age
$59,250
Median household income
$32,519
Per capita income
$0
Median home value
$0
Median monthly rent
76.1%
Home ownership
6.3%
Poverty rate
0.0%
Unemployment
59
Housing units
20.4%
Bachelor's or higher
Age distribution
Male
Female
1
Under 5
1
4
5–9
2
1
10–14
1
4
15–19
2
8
20–24
5
6
25–34
4
5
35–44
4
5
45–54
3
19
55–59
13
7
60–64
5
20
65–74
14
5
75–84
3
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 10 | 7.0% |
| 18 and over | 132 | 93.0% |
| 65 and over | 42 | 29.6% |
| Median age | 56.8 years | |
Race & ethnicity
White
100%
| Group | Count | % |
|---|---|---|
| White | 142 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 56.8% | 54.6% | 44.2% |
| $50k – $100k | 34.6% | 33.7% | 32.0% |
| $100k – $200k | 4.9% | 9.5% | 19.2% |
| Over $200k | 3.7% | 2.2% | 4.7% |
$10k–$15k
3.0%
$15k–$25k
4.5%
$25k–$35k
6.0%
$35k–$50k
28.4%
$50k–$75k
13.4%
$75k–$100k
29.9%
$100k–$150k
9.0%
$150k–$200k
6.0%
| Range | % of households |
|---|---|
| $10k–$15k | 3.0% |
| $15k–$25k | 4.5% |
| $25k–$35k | 6.0% |
| $35k–$50k | 28.4% |
| $50k–$75k | 13.4% |
| $75k–$100k | 29.9% |
| $100k–$150k | 9.0% |
| $150k–$200k | 6.0% |
| Median income | $59,250 |
Housing
Home values
Under $50k
23.5%
$50k–$100k
5.9%
$100k–$150k
19.6%
$200k–$300k
5.9%
$300k–$500k
7.8%
$1M+
37.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 76.1% |
| Renter occupied | 23.9% |
| Vacant | 10.7% |
| Single-family detached | 57.3% |
| Large apartment buildings | 0.0% |
| Mobile homes | 42.7% |
| Median rooms | 6.5 |
| Avg household size (owned) | 2.29 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 5.3% |
| 2000–2009 | 18.7% |
| 1990–1999 | 4.0% |
| 1980–1989 | 25.3% |
| 1970–1979 | 17.3% |
| 1960–1969 | 2.7% |
| 1950–1959 | 21.3% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 5.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 4.0% |
| 2 bedrooms | 30.7% |
| 3 bedrooms | 48.0% |
| 4 bedrooms | 4.0% |
| 5+ bedrooms | 13.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 1.5% |
| 1 vehicle | 3.0% |
| 2 vehicles | 41.8% |
| 3 or more | 53.7% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 4.5% |
| Electricity | 7.5% |
| Propane / LP gas | 70.1% |
| Wood | 4.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 57 | 85.1% |
| Cohabiting couple | 1 | 1.5% |
| Male householder, no spouse | 6 | 9.0% |
| Female householder, no spouse | 3 | 4.5% |
| Households with children under 18 | 1 | 1.5% |
| Households with seniors (65+) | 25 | 37.3% |
| Average household size | 2.12 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 24.1% | 1.9% |
| Married | 72.2% | 92.5% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 5.7% |
| Divorced | 3.8% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
2.7%
HS graduate
30.1%
Some college, no degree
41.6%
Associate's degree
5.3%
Bachelor's degree
13.3%
Graduate / professional
7.1%
| Metric | % |
|---|---|
| HS diploma or higher | 97.3% |
| Bachelor's or higher | 20.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 2 | 10.0% |
| Kindergarten | 4 | 20.0% |
| Elementary school | 4 | 20.0% |
| High school | 0 | 0.0% |
| College / grad school | 10 | 50.0% |
Employment
Industry of employment
Agriculture & mining
53.3%
Construction
20.7%
Education & healthcare
8.7%
Retail trade
7.6%
Other services
3.3%
Professional & management
2.2%
Public administration
2.2%
Transportation & utilities
1.1%
Arts, food & hospitality
1.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 52.2% |
| Service | 1.1% |
| Sales & office | 13.0% |
| Natural resources & construction | 32.6% |
| Production & transportation | 1.1% |
Employment type
| Type | % |
|---|---|
| Private sector | 51.1% |
| Government | 13.0% |
| Self-employed | 35.9% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 40.2% |
| Carpool | 2.2% |
| Public transit | 0.0% |
| Walk | 10.9% |
| Work from home | 43.5% |
| Other means | 3.3% |
| Avg commute (minutes) | 16.5 |
Poverty
All people
6.3%
Under 18 years
0.0%
18 and over
6.8%
Married-couple families
7.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 26.9% |
| Retirement income | 13.4% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 31.2% |
| High blood pressure | 33.7% |
| High cholesterol | 34.2% |
| Diabetes | 10.8% |
| Heart disease | 7.5% |
| Stroke | 3.5% |
| Asthma | 9.9% |
| Arthritis | 29.3% |
| Kidney disease | 3.3% |
| Pulmonary disease | 7.9% |
| Cancer | 8.0% |
| Behavior / access | % |
|---|---|
| Smoking | 17.2% |
| Binge drinking | 20.1% |
| No physical activity | 22.3% |
| Less than 7 hrs sleep | 29.9% |
| Depression | 21.9% |
| Fair or poor health | 13.8% |
| Poor mental health | 12.6% |
| Poor physical health | 11.7% |
| No health insurance | 10.9% |
| Visited doctor (checkup) | 70.6% |
| Visited dentist | 65.3% |
| Cholesterol screening | 90.0% |
| Teeth loss | 13.4% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 5 | 3.8% |
| Disability | % |
|---|---|
| Any disability | 14.1% |
| Under 18 | 0.0% |
| 18–64 years | 6.7% |
| 65 and over | 33.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 75.4% |
| Public insurance | 34.5% |
| No insurance | 6.3% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 140 | 98.6% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 142 | 100.0% |
| Born in same state | 142 | 100.0% |
| Born in different state | 41 | 28.9% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 11 | 7.7% |
| Italian | 8 | 5.6% |
| Polish | 6 | 4.2% |
| Ancestry | Count | % |
|---|---|---|
| Irish | 3 | 2.1% |
| Dutch | 3 | 2.1% |
| English | 1 | 0.7% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 47.2% |
| Internet access | 98.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59311
What city is ZIP code 59311 in?
ZIP code 59311 is primarily assigned to Alzada, Montana.
What county is ZIP code 59311 in?
ZIP code 59311 falls within Carter County, Montana.
Does ZIP code 59311 have an older population?
30% of residents in ZIP code 59311 are 65 or older, above the national average of ~17%.
What is the population of ZIP code 59311?
ZIP code 59311 has an estimated population of 142 residents.
What is the median household income in ZIP code 59311?
The median household income in ZIP code 59311 is $59,250, below the national median of ~$75,000.
What timezone is ZIP code 59311 in?
ZIP code 59311 observes the MST timezone.