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Montana ZIP Codes
Jefferson County
Boulder, MT
59632
59632 ZIP Code — Boulder, MT
Jefferson County, Montana
ZIP code 59632 is located in
Boulder ,
Montana ,
within Jefferson County .
It covers approximately 444.05 square miles and serves a population of
2,412 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 406 .
About ZIP code 59632
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $245,300. Owner-occupancy sits near the national average at 75%.
The gap between median ($59,789) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 7% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 29 minutes is near the national average.
Educational attainment is near the national average, with 28% of residents holding a bachelor's degree or higher.
Notable community characteristics include a notable veteran presence at 17% of civilians, above the national average of 7%.
Overall, ZIP code 59632 reflects a community defined by a strong veteran community and a significant Social Security-dependent population.
59632 ZIP code map
View map of 59632
Cities in ZIP code 59632
Below are the cities the US Postal Service accepts for ZIP code 59632. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
2,412
Population density
5 / sq mi
State FIPS
30
County FIPS
043
Geography
Land area
444.05 sq mi
Water area
1.20 sq mi
Latitude
46.2106
Longitude
-112.1908
Timezone
Mountain (MT)
Area code
406
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
46.1%
34.6%
44.2%
$50k – $100k
37.7%
33.8%
32.0%
$100k – $200k
16.1%
28.5%
19.2%
Over $200k
0.1%
3.2%
4.7%
Demographics & statistics
$59,789
Median household income
$245,300
Median home value
28.0%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 486 20.1% 18 and over 1,926 79.9% 65 and over 293 12.1% Median age 43.7 years
Race & ethnicity
American Indian / Alaska Native
2.5%
Group Count % White 2,145 86.5% Two or more races 164 6.6% Hispanic or Latino 69 2.8% American Indian / Alaska Native 63 2.5% Other race 22 0.9% Asian 18 0.7%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
46.1%
34.6%
44.2%
$50k – $100k
37.7%
33.8%
32.0%
$100k – $200k
16.1%
28.5%
19.2%
Over $200k
0.1%
3.2%
4.7%
Range % of households Under $10k 4.0% $15k–$25k 11.7% $25k–$35k 4.7% $35k–$50k 15.8% $50k–$75k 25.3% $75k–$100k 10.7% $100k–$150k 14.2% $150k–$200k 6.7% $200k+ 7.0% Median income $59,789
Housing
Housing overview
Metric Value Median home value $245,300 Median rent / month $743 Owner occupied 74.6% Renter occupied 25.4% Vacant 12.4% Single-family detached 76.5% Large apartment buildings 2.0% Mobile homes 18.1% Median rooms 5.2 Avg household size (owned) 2.35
Year built
Era % 2020 or later 1.7% 2010–2019 5.8% 2000–2009 19.0% 1990–1999 9.8% 1980–1989 7.7% 1970–1979 22.8% 1960–1969 4.8% 1950–1959 5.7% 1940–1949 3.0% 1939 or earlier 19.6%
Bedrooms
Size % of units No bedroom (studio) 0.9% 1 bedroom 17.5% 2 bedrooms 23.5% 3 bedrooms 45.4% 4 bedrooms 10.3% 5+ bedrooms 2.5%
Vehicles per household
Vehicles % of households No vehicle 3.6% 1 vehicle 17.3% 2 vehicles 38.5% 3 or more 40.6%
Heating fuel
Fuel type % Utility gas 39.4% Electricity 6.9% Propane / LP gas 25.2% Wood 27.6%
Households & families
Household type Count % Married-couple family 502 54.7% Cohabiting couple 52 5.7% Male householder, no spouse 203 22.1% Female householder, no spouse 160 17.4% Households with children under 18 267 29.1% Households with seniors (65+) 222 24.2% Average household size 2.41
Marital status
Status Male Female Never married 33.6% 22.7% Married 47.1% 55.2% Separated 2.7% 2.0% Widowed 0.7% 5.6% Divorced 15.9% 14.5%
Education
Some college, no degree
27.9%
Graduate / professional
4.4%
Metric % HS diploma or higher 92.3% Bachelor's or higher 28.0%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 39 8.1% Kindergarten 13 2.7% Elementary school 236 49.0% High school 102 21.2% College / grad school 92 19.1%
Employment
Industry of employment
Education & healthcare
27.0%
Public administration
11.0%
Agriculture & mining
9.7%
Transportation & utilities
9.7%
Arts, food & hospitality
7.4%
Professional & management
6.4%
Occupation
Category % Management, business & arts 46.2% Service 12.8% Sales & office 10.7% Natural resources & construction 18.5% Production & transportation 11.8%
Employment type
Type % Private sector 72.0% Government 24.8% Self-employed 3.3% Unpaid family workers 0.0%
Commute
Method % Drive alone 69.0% Carpool 10.4% Public transit 0.0% Walk 3.9% Work from home 15.1% Other means 1.6% Avg commute (minutes) 29.4
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households Social Security 32.1% Retirement income 28.6% Supplemental Security 2.2% Cash public assistance 7.9% Food stamps / SNAP 9.5%
Health indicators
Condition % Obesity 30.5% High blood pressure 28.5% High cholesterol 31.3% Diabetes 9.5% Heart disease 6.1% Stroke 2.9% Asthma 10.2% Arthritis 25.1% Kidney disease 2.8% Pulmonary disease 6.8% Cancer 6.6%
Behavior / access % Smoking 18.9% Binge drinking 22.4% No physical activity 20.6% Less than 7 hrs sleep 30.8% Depression 22.4% Fair or poor health 12.9% Poor mental health 13.2% Poor physical health 10.8% No health insurance 11.8% Visited doctor (checkup) 69.5% Visited dentist 62.4% Cholesterol screening 88.2% Teeth loss 13.4%
Veterans & disability
Veterans Count % Civilian veterans 329 17.1%
Disability % Any disability 15.3% Under 18 0.0% 18–64 years 13.5% 65 and over 48.1%
Health insurance coverage
Type % Private insurance 62.6% Public insurance 43.2% No insurance 9.0% Uninsured under 19 2.0%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 2,280 94.5% Spanish 41 1.8% Other Indo-European 23 1.0% Asian & Pacific Islander 0 0.0% Other languages 18 0.8%
Place of birth & citizenship
Origin Count % Native born (US) 2,394 99.3% Born in same state 2,391 99.1% Born in different state 1,500 62.2% Foreign born 3 0.1% Naturalized citizen 18 0.7% Not a US citizen 0 0.0%
Ancestry
Ancestry Count % Italian 694 28.8% French 294 12.2% Polish 158 6.6% Arab 92 3.8%
Ancestry Count % German 41 1.7% Irish 13 0.5% Dutch 13 0.5%
Technology access
Metric % of households Computer access 38.0% Internet access 97.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59632
What city is ZIP code 59632 in?
ZIP code 59632 is primarily assigned to Boulder, Montana.
What county is ZIP code 59632 in?
ZIP code 59632 falls within Jefferson County, Montana.
Does ZIP code 59632 have a large veteran population?
17% of civilians in ZIP code 59632 are veterans, above the national average of ~7%.
What is the population of ZIP code 59632?
ZIP code 59632 has an estimated population of 2,412 residents, with a density of 5 people per square mile.
What is the median household income in ZIP code 59632?
The median household income in ZIP code 59632 is $59,789, below the national median of ~$75,000.
What is the typical home value in ZIP code 59632?
The median home value in ZIP code 59632 is $245,300.
What timezone is ZIP code 59632 in?
ZIP code 59632 observes the MST timezone.
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