ZipCodesToGo
Montana ZIP Codes
Cascade County
Simms, MT
59477
59477 ZIP Code — Simms, MT
Cascade County, Montana
ZIP code 59477 is located in
Simms ,
Montana ,
within Cascade County .
It covers approximately 66.35 square miles and serves a population of
329 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 406 .
About ZIP code 59477
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 $192,800. Owner-occupancy is high at 83%, well above the national average.
Median household income is $94,063. 69% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is natural resources, construction, and trades, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.
Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.
33% of residents lack health insurance, above the national average.
Notable community characteristics include a notable veteran presence at 13% of civilians, above the national average of 7%.
Overall, ZIP code 59477 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.
59477 ZIP code map
View map of 59477
Cities in ZIP code 59477
Below are the cities the US Postal Service accepts for ZIP code 59477. Using any city not on this list may result in mail delivery delays.
City
Status
Simms
Acceptable
Demographics
updated 06/2026
Population
Total population
329
Population density
5 / sq mi
State FIPS
30
County FIPS
013
Geography
Land area
66.35 sq mi
Water area
0.13 sq mi
Latitude
47.4302
Longitude
-111.9690
Timezone
Mountain (MT)
Area code
406
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
33.9%
47.9%
44.2%
$50k – $100k
50.4%
31.8%
32.0%
$100k – $200k
15.7%
16.9%
19.2%
Over $200k
0.0%
3.5%
4.7%
Demographics & statistics
$94,063
Median household income
$192,800
Median home value
26.5%
Bachelor's or higher
Age distribution
Age summary
Group Count % Under 18 129 39.2% 18 and over 200 60.8% 65 and over 92 28.0% Median age 39.5 years
Race & ethnicity
Group Count % White 312 94.8% Two or more races 17 5.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
33.9%
47.9%
44.2%
$50k – $100k
50.4%
31.8%
32.0%
$100k – $200k
15.7%
16.9%
19.2%
Over $200k
0.0%
3.5%
4.7%
Range % of households $15k–$25k 18.4% $25k–$35k 4.8% $35k–$50k 4.8% $50k–$75k 4.0% $75k–$100k 26.4% $100k–$150k 33.6% $150k–$200k 8.0% Median income $94,063
Housing
Housing overview
Metric Value Median home value $192,800 Median rent / month $0 Owner occupied 83.2% Renter occupied 16.8% Vacant 11.3% Single-family detached 78.0% Large apartment buildings 0.0% Mobile homes 10.6% Median rooms 6.0 Avg household size (owned) 2.46
Year built
Era % 2020 or later 0.0% 2010–2019 0.0% 2000–2009 4.3% 1990–1999 0.0% 1980–1989 0.0% 1970–1979 23.4% 1960–1969 4.3% 1950–1959 7.1% 1940–1949 35.5% 1939 or earlier 25.5%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 7.8% 2 bedrooms 27.7% 3 bedrooms 19.1% 4 bedrooms 38.3% 5+ bedrooms 7.1%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 9.6% 2 vehicles 35.2% 3 or more 55.2%
Heating fuel
Fuel type % Utility gas 70.4% Propane / LP gas 18.4% Fuel oil 4.8% Wood 6.4%
Households & families
Household type Count % Married-couple family 82 65.6% Cohabiting couple 0 0.0% Male householder, no spouse 32 25.6% Female householder, no spouse 11 8.8% Households with children under 18 55 44.0% Households with seniors (65+) 86 68.8% Average household size 2.63
Marital status
Status Male Female Never married 0.0% 5.1% Married 84.0% 83.8% Separated 0.0% 0.0% Widowed 0.0% 6.1% Divorced 16.0% 5.1%
Education
Some college, no degree
25.0%
Graduate / professional
5.5%
Metric % HS diploma or higher 94.0% Bachelor's or higher 26.5%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 7 5.5% Kindergarten 5 3.9% Elementary school 105 82.0% High school 5 3.9% College / grad school 6 4.7%
Employment
Industry of employment
Education & healthcare
36.4%
Agriculture & mining
14.0%
Occupation
Category % Management, business & arts 38.0% Service 3.1% Sales & office 0.0% Natural resources & construction 45.7% Production & transportation 13.2%
Employment type
Type % Private sector 41.1% Government 33.3% Self-employed 25.6% Unpaid family workers 0.0%
Commute
Method % Drive alone 91.5% Carpool 4.7% Public transit 0.0% Walk 0.0% Work from home 3.9% Other means 0.0% Avg commute (minutes) 21.9
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households Social Security 68.8% Retirement income 23.2% Supplemental Security 0.0% Cash public assistance 0.0% Food stamps / SNAP 0.0%
Health indicators
Condition % Obesity 34.3% High blood pressure 33.8% High cholesterol 30.3% Diabetes 10.1% Heart disease 7.0% Stroke 3.3% Asthma 10.9% Arthritis 28.9% Kidney disease 3.0% Pulmonary disease 7.5% Cancer 7.9%
Behavior / access % Smoking 18.1% Binge drinking 17.5% No physical activity 22.4% Less than 7 hrs sleep 30.4% Depression 23.9% Fair or poor health 13.8% Poor mental health 13.6% Poor physical health 11.0% No health insurance 11.9% Visited doctor (checkup) 75.2% Visited dentist 63.7% Cholesterol screening 89.0% Teeth loss 14.1%
Veterans & disability
Veterans Count % Civilian veterans 26 13.0%
Disability % Any disability 7.0% Under 18 9.3% 18–64 years 0.0% 65 and over 12.0%
Health insurance coverage
Type % Private insurance 37.4% Public insurance 54.4% No insurance 32.5% Uninsured under 19 35.7%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 315 95.7% 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) 329 100.0% Born in same state 323 98.2% Born in different state 289 87.8% Foreign born 6 1.8% Naturalized citizen 0 0.0% Not a US citizen 0 0.0%
Ancestry
Ancestry Count % French 47 14.3% Italian 16 4.9%
Ancestry Count % Polish 6 1.8%
Technology access
Metric % of households Computer access 38.0% Internet access 100.0%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59477
What city is ZIP code 59477 in?
ZIP code 59477 is primarily assigned to Simms, Montana.
What county is ZIP code 59477 in?
ZIP code 59477 falls within Cascade County, Montana.
Does ZIP code 59477 have a large retiree population?
69% of households in ZIP code 59477 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 59477 have an older population?
28% of residents in ZIP code 59477 are 65 or older, above the national average of ~17%.
Is ZIP code 59477 mostly owner-occupied?
83% of occupied units in ZIP code 59477 are owner-occupied, well above the national average.
Does ZIP code 59477 have a large veteran population?
13% of civilians in ZIP code 59477 are veterans, above the national average of ~7%.
What timezone is ZIP code 59477 in?
ZIP code 59477 observes the MST timezone.
Need the complete ZIP code database?
Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →
