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Montana ZIP Codes
Meagher County
White Sulphur Springs, MT
59645
59645 ZIP Code — White Sulphur Springs, MT
Meagher County, Montana
ZIP code 59645 is located in
White Sulphur Springs ,
Montana ,
within Meagher County .
It covers approximately 1,630.51 square miles and serves a population of
1,719 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 406 .
About ZIP code 59645
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $267,000. Owner-occupancy is high at 84%, well above the national average.
The gap between median ($57,375) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average. 53% 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 21 minutes is near the national average.
Educational attainment is near the national average, with 36% of residents holding a bachelor's degree or higher.
Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.
Overall, ZIP code 59645 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.
59645 ZIP code map
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Cities in ZIP code 59645
Below are the cities the US Postal Service accepts for ZIP code 59645. Using any city not on this list may result in mail delivery delays.
Demographics
updated 06/2026
Population
Total population
1,719
Population density
1,719 / sq mi
State FIPS
30
County FIPS
059
Geography
Land area
1,630.51 sq mi
Water area
1.30 sq mi
Latitude
46.6362
Longitude
-110.9697
Timezone
Mountain (MT)
Area code
406
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
53.2%
52.8%
44.2%
$50k – $100k
27.2%
26.2%
32.0%
$100k – $200k
18.8%
20.4%
19.2%
Over $200k
0.8%
0.6%
4.7%
Demographics & statistics
$57,375
Median household income
$267,000
Median home value
35.6%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 274 15.9% 18 and over 1,445 84.1% 65 and over 558 32.5% Median age 56.2 years
Race & ethnicity
American Indian / Alaska Native
5.3%
Black or African American
0.1%
Group Count % White 1,607 92.8% American Indian / Alaska Native 91 5.3% Two or more races 14 0.8% Hispanic or Latino 13 0.8% Asian 5 0.3% Black or African American 1 0.1% Other race 1 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
53.2%
52.8%
44.2%
$50k – $100k
27.2%
26.2%
32.0%
$100k – $200k
18.8%
20.4%
19.2%
Over $200k
0.8%
0.6%
4.7%
Range % of households Under $10k 2.2% $10k–$15k 7.1% $15k–$25k 2.7% $25k–$35k 3.4% $35k–$50k 23.5% $50k–$75k 19.6% $75k–$100k 5.9% $100k–$150k 19.9% $150k–$200k 4.4% $200k+ 11.2% Median income $57,375
Housing
Housing overview
Metric Value Median home value $267,000 Median rent / month $850 Owner occupied 84.3% Renter occupied 15.7% Vacant 36.8% Single-family detached 81.7% Large apartment buildings 0.3% Mobile homes 16.0% Median rooms 5.8 Avg household size (owned) 2.39
Year built
Era % 2020 or later 0.0% 2010–2019 7.6% 2000–2009 10.8% 1990–1999 13.4% 1980–1989 8.0% 1970–1979 15.4% 1960–1969 6.3% 1950–1959 10.0% 1940–1949 3.0% 1939 or earlier 25.5%
Bedrooms
Size % of units No bedroom (studio) 3.7% 1 bedroom 3.2% 2 bedrooms 29.9% 3 bedrooms 36.0% 4 bedrooms 17.6% 5+ bedrooms 9.5%
Vehicles per household
Vehicles % of households No vehicle 0.4% 1 vehicle 15.1% 2 vehicles 38.0% 3 or more 46.5%
Heating fuel
Fuel type % Utility gas 1.0% Electricity 6.9% Propane / LP gas 53.8% Fuel oil 2.5% Wood 35.7%
Households & families
Household type Count % Married-couple family 456 67.4% Cohabiting couple 32 4.7% Male householder, no spouse 103 15.2% Female householder, no spouse 86 12.7% Households with children under 18 111 16.4% Households with seniors (65+) 345 51.0% Average household size 2.49
Marital status
Status Male Female Never married 29.2% 17.5% Married 56.1% 67.5% Separated 0.0% 0.8% Widowed 0.5% 8.4% Divorced 14.2% 5.8%
Education
Some college, no degree
28.9%
Graduate / professional
11.8%
Metric % HS diploma or higher 97.1% Bachelor's or higher 35.6%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 0 0.0% Kindergarten 0 0.0% Elementary school 160 39.6% High school 120 29.7% College / grad school 124 30.7%
Employment
Industry of employment
Education & healthcare
23.4%
Agriculture & mining
22.9%
Public administration
11.8%
Professional & management
9.1%
Arts, food & hospitality
6.7%
Transportation & utilities
3.1%
Occupation
Category % Management, business & arts 41.8% Service 16.9% Sales & office 17.1% Natural resources & construction 13.2% Production & transportation 11.0%
Employment type
Type % Private sector 56.8% Government 27.0% Self-employed 16.2% Unpaid family workers 0.0%
Commute
Method % Drive alone 68.5% Carpool 15.9% Public transit 0.0% Walk 4.6% Work from home 9.4% Other means 1.7% Avg commute (minutes) 20.5
Poverty
Married-couple families
2.2%
Female-led households
100.0%
Income support
Source % of households Social Security 52.9% Retirement income 40.8% Supplemental Security 6.2% Cash public assistance 0.0% Food stamps / SNAP 8.0%
Health indicators
Condition % Obesity 29.5% High blood pressure 34.7% High cholesterol 33.9% Diabetes 10.9% Heart disease 8.2% Stroke 3.8% Asthma 9.9% Arthritis 30.4% Kidney disease 3.5% Pulmonary disease 8.2% Cancer 8.5%
Behavior / access % Smoking 17.0% Binge drinking 18.3% No physical activity 22.0% Less than 7 hrs sleep 30.2% Depression 21.5% Fair or poor health 14.4% Poor mental health 12.5% Poor physical health 11.8% No health insurance 11.6% Visited doctor (checkup) 72.2% Visited dentist 64.6% Cholesterol screening 90.0% Teeth loss 13.9%
Veterans & disability
Veterans Count % Civilian veterans 196 13.6%
Disability % Any disability 17.0% Under 18 3.3% 18–64 years 7.8% 65 and over 38.7%
Health insurance coverage
Type % Private insurance 62.8% Public insurance 48.5% No insurance 7.2% Uninsured under 19 9.9%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 1,677 97.6% Spanish 3 0.2% Other Indo-European 3 0.2% Asian & Pacific Islander 0 0.0% Other languages 0 0.0%
Place of birth & citizenship
Origin Count % Native born (US) 1,660 96.6% Born in same state 1,635 95.1% Born in different state 961 55.9% Foreign born 25 1.5% Naturalized citizen 59 3.4% Not a US citizen 39 66.1%
Ancestry
Ancestry Count % Italian 264 15.4% French 260 15.1% Arab 177 10.3% Polish 163 9.5%
Ancestry Count % English 90 5.2% Norwegian 12 0.7% Dutch 6 0.3%
Technology access
Metric % of households Computer access 39.4% Internet access 87.4%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59645
What city is ZIP code 59645 in?
ZIP code 59645 is primarily assigned to White Sulphur Springs, Montana.
What county is ZIP code 59645 in?
ZIP code 59645 falls within Meagher County, Montana.
Does ZIP code 59645 have an older population?
33% of residents in ZIP code 59645 are 65 or older, above the national average of ~17%.
Does ZIP code 59645 have a large retiree population?
53% of households in ZIP code 59645 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 59645 mostly owner-occupied?
84% of occupied units in ZIP code 59645 are owner-occupied, well above the national average.
Does ZIP code 59645 have a large veteran population?
14% of civilians in ZIP code 59645 are veterans, above the national average of ~7%.
What timezone is ZIP code 59645 in?
ZIP code 59645 observes the MST timezone.
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