59731 ZIP Code — Garrison, MT
Powell County, Montana
ZIP code 59731 is located in Garrison, Montana, within Powell County. It covers approximately 131.09 square miles and serves a population of 197 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 406.
197
population
131.09
sq mi land
Standard
ZIP type
Mountain (MT)
timezone
59731 ZIP code map
Cities in ZIP code 59731
Below are the cities the US Postal Service accepts for ZIP code 59731. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Garrison | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 197 |
| Population density | 2 / sq mi |
| State FIPS | 30 |
| County FIPS | 077 |
| Geography | |
|---|---|
| Land area | 131.09 sq mi |
| Water area | 0.01 sq mi |
| Latitude | 46.5816 |
| Longitude | -112.6155 |
| 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 | 57.8% | 49.7% | 44.2% |
| $50k – $100k | 37.5% | 33.9% | 32.0% |
| $100k – $200k | 4.7% | 13.8% | 19.2% |
| Over $200k | 0.0% | 2.6% | 4.7% |
Demographics & statistics
197
Population
2
People per sq mi
38.7
Median age
$56,375
Median household income
$24,837
Per capita income
$362,500
Median home value
$475
Median monthly rent
88.7%
Home ownership
13.2%
Poverty rate
3.4%
Unemployment
70
Housing units
26.8%
Bachelor's or higher
Age distribution
Male
Female
9
Under 5
7
8
5–9
6
5
10–14
4
14
15–19
11
12
20–24
9
2
25–34
1
12
35–44
10
5
45–54
5
8
55–59
7
4
60–64
4
27
65–74
22
3
75–84
2
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 53 | 26.9% |
| 18 and over | 144 | 73.1% |
| 65 and over | 54 | 27.4% |
| Median age | 38.7 years | |
Race & ethnicity
White
99%
Asian
1%
| Group | Count | % |
|---|---|---|
| White | 195 | 99% |
| Asian | 2 | 1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 57.8% | 49.7% | 44.2% |
| $50k – $100k | 37.5% | 33.9% | 32.0% |
| $100k – $200k | 4.7% | 13.8% | 19.2% |
| Over $200k | 0.0% | 2.6% | 4.7% |
Under $10k
5.6%
$10k–$15k
4.2%
$15k–$25k
2.8%
$25k–$35k
14.1%
$35k–$50k
15.5%
$50k–$75k
25.4%
$75k–$100k
23.9%
$100k–$150k
4.2%
$150k–$200k
1.4%
$200k+
2.8%
| Range | % of households |
|---|---|
| Under $10k | 5.6% |
| $10k–$15k | 4.2% |
| $15k–$25k | 2.8% |
| $25k–$35k | 14.1% |
| $35k–$50k | 15.5% |
| $50k–$75k | 25.4% |
| $75k–$100k | 23.9% |
| $100k–$150k | 4.2% |
| $150k–$200k | 1.4% |
| $200k+ | 2.8% |
| Median income | $56,375 |
Housing
Home values
Under $50k
7.9%
$50k–$100k
6.3%
$100k–$150k
4.8%
$150k–$200k
12.7%
$200k–$300k
14.3%
$300k–$500k
31.7%
$500k–$1M
12.7%
$1M+
9.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $362,500 |
| Median rent / month | $475 |
| Owner occupied | 88.7% |
| Renter occupied | 11.3% |
| Vacant | 9.0% |
| Single-family detached | 69.2% |
| Large apartment buildings | 0.0% |
| Mobile homes | 29.5% |
| Median rooms | 5.8 |
| Avg household size (owned) | 2.76 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 2.6% |
| 2000–2009 | 9.0% |
| 1990–1999 | 21.8% |
| 1980–1989 | 17.9% |
| 1970–1979 | 24.4% |
| 1960–1969 | 6.4% |
| 1950–1959 | 5.1% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 12.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 11.5% |
| 2 bedrooms | 33.3% |
| 3 bedrooms | 53.8% |
| 4 bedrooms | 0.0% |
| 5+ bedrooms | 1.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 11.3% |
| 2 vehicles | 46.5% |
| 3 or more | 42.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 28.2% |
| Electricity | 2.8% |
| Propane / LP gas | 46.5% |
| Fuel oil | 2.8% |
| Wood | 15.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 33 | 46.5% |
| Cohabiting couple | 1 | 1.4% |
| Male householder, no spouse | 34 | 47.9% |
| Female householder, no spouse | 3 | 4.2% |
| Households with children under 18 | 11 | 15.5% |
| Households with seniors (65+) | 38 | 53.5% |
| Average household size | 2.77 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 21.2% | 42.5% |
| Married | 38.8% | 47.9% |
| Separated | 0.0% | 0.0% |
| Widowed | 2.4% | 0.0% |
| Divorced | 37.6% | 9.6% |
Education
Less than 9th grade
11.6%
Some HS, no diploma
5.4%
HS graduate
24.1%
Some college, no degree
25.9%
Associate's degree
6.3%
Bachelor's degree
9.8%
Graduate / professional
17.0%
| Metric | % |
|---|---|
| HS diploma or higher | 83.0% |
| Bachelor's or higher | 26.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 2 | 4.8% |
| Elementary school | 15 | 35.7% |
| High school | 25 | 59.5% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Agriculture & mining
30.4%
Public administration
19.6%
Education & healthcare
12.5%
Construction
10.7%
Other services
10.7%
Retail trade
8.9%
Transportation & utilities
1.8%
Finance & real estate
1.8%
Professional & management
1.8%
Arts, food & hospitality
1.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 41.1% |
| Service | 35.7% |
| Sales & office | 5.4% |
| Natural resources & construction | 12.5% |
| Production & transportation | 5.4% |
Employment type
| Type | % |
|---|---|
| Private sector | 46.4% |
| Government | 21.4% |
| Self-employed | 16.1% |
| Unpaid family workers | 16.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 73.2% |
| Carpool | 14.3% |
| Public transit | 0.0% |
| Walk | 8.9% |
| Work from home | 3.6% |
| Other means | 0.0% |
| Avg commute (minutes) | 30.8 |
Poverty
All people
13.2%
Under 18 years
13.2%
18 and over
13.2%
Married-couple families
0.0%
Female-led households
100.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 60.6% |
| Retirement income | 35.2% |
| Supplemental Security | 9.9% |
| Cash public assistance | 1.4% |
| Food stamps / SNAP | 11.3% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 33.3% |
| High blood pressure | 36.8% |
| High cholesterol | 38.3% |
| Diabetes | 12.1% |
| Heart disease | 9.0% |
| Stroke | 4.0% |
| Asthma | 9.9% |
| Arthritis | 31.5% |
| Kidney disease | 3.5% |
| Pulmonary disease | 8.8% |
| Cancer | 8.0% |
| Behavior / access | % |
|---|---|
| Smoking | 20.4% |
| Binge drinking | 19.4% |
| No physical activity | 24.4% |
| Less than 7 hrs sleep | 31.7% |
| Depression | 21.9% |
| Fair or poor health | 16.1% |
| Poor mental health | 12.4% |
| Poor physical health | 12.9% |
| No health insurance | 12.1% |
| Visited doctor (checkup) | 71.0% |
| Visited dentist | 61.8% |
| Cholesterol screening | 91.2% |
| Teeth loss | 15.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 21 | 14.6% |
| Disability | % |
|---|---|
| Any disability | 18.3% |
| Under 18 | 0.0% |
| 18–64 years | 17.8% |
| 65 and over | 37.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 43.1% |
| Public insurance | 54.3% |
| No insurance | 19.8% |
| Uninsured under 19 | 44.3% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 181 | 91.9% |
| 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) | 190 | 96.4% |
| Born in same state | 190 | 96.4% |
| Born in different state | 87 | 44.2% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 7 | 3.6% |
| Not a US citizen | 7 | 100.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 19 | 9.6% |
| French | 16 | 8.1% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 3 | 1.5% |
| English | 1 | 0.5% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 36.0% |
| Internet access | 85.9% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59731
What city is ZIP code 59731 in?
ZIP code 59731 is primarily assigned to Garrison, Montana.
What county is ZIP code 59731 in?
ZIP code 59731 falls within Powell County, Montana.
Does ZIP code 59731 have a large retiree population?
61% of households in ZIP code 59731 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 59731 have an older population?
27% of residents in ZIP code 59731 are 65 or older, above the national average of ~17%.
Is ZIP code 59731 mostly owner-occupied?
89% of occupied units in ZIP code 59731 are owner-occupied, well above the national average.
Does ZIP code 59731 have a large veteran population?
15% of civilians in ZIP code 59731 are veterans, above the national average of ~7%.
What timezone is ZIP code 59731 in?
ZIP code 59731 observes the MST timezone.