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Montana ZIP Codes
Jefferson County
Clancy, MT
59634
59634 ZIP Code — Clancy, MT
Jefferson County, Montana
ZIP code 59634 is located in
Clancy ,
Montana ,
within Jefferson County .
It covers approximately 251.28 square miles and serves a population of
5,255 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 406 .
About ZIP code 59634
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $447,700. Owner-occupancy is high at 91%, well above the national average.
Median household income is $110,375. 40% 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 17 minutes is near the national average.
Educational attainment is near the national average, with 44% of residents holding a bachelor's degree or higher.
Overall, ZIP code 59634 reflects a community defined by high homeownership and a significant Social Security-dependent population.
59634 ZIP code map
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Cities in ZIP code 59634
Below are the cities the US Postal Service accepts for ZIP code 59634. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
5,255
Population density
21 / sq mi
State FIPS
30
County FIPS
043
Geography
Land area
251.28 sq mi
Water area
0.08 sq mi
Latitude
46.3984
Longitude
-112.1860
Timezone
Mountain (MT)
Area code
406
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
19.5%
34.6%
44.2%
$50k – $100k
29.6%
33.8%
32.0%
$100k – $200k
43.5%
28.5%
19.2%
Over $200k
7.3%
3.2%
4.7%
Demographics & statistics
$110,375
Median household income
$447,700
Median home value
$1,181
Median monthly rent
43.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,277 24.3%
18 and over 3,978 75.7%
65 and over 1,146 21.8%
Median age 44.5 years
Race & ethnicity
American Indian / Alaska Native
0.8%
Black or African American
0.2%
Group Count %
White 4,902 91.8%
Two or more races 236 4.4%
Hispanic or Latino 84 1.6%
Other race 53 1%
American Indian / Alaska Native 45 0.8%
Asian 10 0.2%
Black or African American 9 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
19.5%
34.6%
44.2%
$50k – $100k
29.6%
33.8%
32.0%
$100k – $200k
43.5%
28.5%
19.2%
Over $200k
7.3%
3.2%
4.7%
Range % of households
Under $10k 0.9%
$15k–$25k 2.7%
$25k–$35k 4.4%
$35k–$50k 7.6%
$50k–$75k 17.1%
$75k–$100k 10.6%
$100k–$150k 25.0%
$150k–$200k 16.6%
$200k+ 15.1%
Median income $110,375
Housing
Housing overview
Metric Value
Median home value $447,700
Median rent / month $1,181
Owner occupied 91.0%
Renter occupied 9.0%
Vacant 8.2%
Single-family detached 90.2%
Large apartment buildings 0.0%
Mobile homes 2.1%
Median rooms 7.6
Avg household size (owned) 2.87
Year built
Era %
2020 or later 2.0%
2010–2019 13.4%
2000–2009 21.1%
1990–1999 24.0%
1980–1989 14.0%
1970–1979 17.4%
1960–1969 2.4%
1950–1959 1.5%
1940–1949 2.0%
1939 or earlier 2.4%
Bedrooms
Size % of units
No bedroom (studio) 1.0%
1 bedroom 3.6%
2 bedrooms 13.8%
3 bedrooms 32.9%
4 bedrooms 31.9%
5+ bedrooms 17.0%
Vehicles per household
Vehicles % of households
No vehicle 1.5%
1 vehicle 11.8%
2 vehicles 30.5%
3 or more 56.3%
Heating fuel
Fuel type %
Utility gas 66.3%
Electricity 11.4%
Propane / LP gas 12.6%
Fuel oil 0.3%
Wood 7.1%
Solar 0.2%
No fuel used 1.4%
Households & families
Household type Count %
Married-couple family 1,418 77.3%
Cohabiting couple 55 3.0%
Male householder, no spouse 84 4.6%
Female householder, no spouse 278 15.1%
Households with children under 18 676 36.8%
Households with seniors (65+) 712 38.8%
Average household size 2.83
Marital status
Status Male Female
Never married 19.5% 17.6%
Married 73.1% 63.8%
Separated 1.8% 1.0%
Widowed 1.8% 11.0%
Divorced 3.9% 6.6%
Education
Some college, no degree
19.2%
Graduate / professional
16.6%
Metric %
HS diploma or higher 97.0%
Bachelor's or higher 43.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 49 3.7%
Kindergarten 124 9.4%
Elementary school 513 39.0%
High school 435 33.1%
College / grad school 195 14.8%
Employment
Industry of employment
Education & healthcare
26.4%
Public administration
17.0%
Professional & management
10.9%
Finance & real estate
6.2%
Arts, food & hospitality
5.7%
Transportation & utilities
3.5%
Agriculture & mining
1.4%
Occupation
Category %
Management, business & arts 50.1%
Service 13.3%
Sales & office 18.2%
Natural resources & construction 11.1%
Production & transportation 7.3%
Employment type
Type %
Private sector 65.4%
Government 29.8%
Self-employed 4.8%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 79.2%
Carpool 11.8%
Public transit 0.4%
Walk 0.4%
Work from home 8.0%
Other means 0.2%
Avg commute (minutes) 16.5
Poverty
Married-couple families
0.4%
Female-led households
9.2%
Income support
Source % of households
Social Security 39.7%
Retirement income 39.1%
Supplemental Security 1.0%
Cash public assistance 0.9%
Food stamps / SNAP 2.6%
Health indicators
Condition %
Obesity 28.4%
High blood pressure 27.3%
High cholesterol 32.1%
Diabetes 8.5%
Heart disease 5.5%
Stroke 2.5%
Asthma 9.4%
Arthritis 24.3%
Kidney disease 2.5%
Pulmonary disease 5.4%
Cancer 7.1%
Behavior / access %
Smoking 14.5%
Binge drinking 21.9%
No physical activity 16.7%
Less than 7 hrs sleep 28.8%
Depression 20.8%
Fair or poor health 10.0%
Poor mental health 11.4%
Poor physical health 9.0%
No health insurance 8.6%
Visited doctor (checkup) 70.8%
Visited dentist 70.3%
Cholesterol screening 91.8%
Teeth loss 9.2%
Veterans & disability
Veterans Count %
Civilian veterans 410 10.3%
Disability %
Any disability 10.4%
Under 18 3.1%
18–64 years 8.9%
65 and over 23.1%
Health insurance coverage
Type %
Private insurance 84.8%
Public insurance 29.7%
No insurance 2.6%
Uninsured under 19 2.1%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 5,006 95.3%
Spanish 29 0.6%
Other Indo-European 13 0.3%
Asian & Pacific Islander 7 0.1%
Other languages 9 0.2%
Place of birth & citizenship
Origin Count %
Native born (US) 5,134 97.7%
Born in same state 5,105 97.1%
Born in different state 2,603 49.5%
Foreign born 29 0.6%
Naturalized citizen 121 2.3%
Not a US citizen 73 60.3%
Ancestry
Ancestry Count %
French 1,044 19.9%
Italian 782 14.9%
Polish 563 10.7%
Arab 168 3.2%
German 94 1.8%
Ancestry Count %
English 69 1.3%
Dutch 52 1%
Irish 13 0.2%
Norwegian 10 0.2%
Technology access
Metric % of households
Computer access 34.9%
Internet access 98.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59634
What city is ZIP code 59634 in?
ZIP code 59634 is primarily assigned to Clancy, Montana.
What county is ZIP code 59634 in?
ZIP code 59634 falls within Jefferson County, Montana.
Is ZIP code 59634 mostly owner-occupied?
91% of occupied units in ZIP code 59634 are owner-occupied, well above the national average.
Does ZIP code 59634 have a large retiree population?
40% of households in ZIP code 59634 receive Social Security income, suggesting a significant retiree or disability population.
What is the typical home value in ZIP code 59634?
The median home value in ZIP code 59634 is $447,700.
Does ZIP code 59634 have a large veteran population?
10% of civilians in ZIP code 59634 are veterans, above the national average of ~7%.
What timezone is ZIP code 59634 in?
ZIP code 59634 observes the MST timezone.
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