ZipCodesToGo
Montana ZIP Codes
Sheridan County
Reserve, MT
59258
59258 ZIP Code — Reserve, MT
Sheridan County, Montana
ZIP code 59258 is located in
Reserve ,
Montana ,
within Sheridan County .
It covers approximately 252.23 square miles and serves a population of
178 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 406 .
59258 ZIP code map
View map of 59258
Cities in ZIP code 59258
Below are the cities the US Postal Service accepts for ZIP code 59258. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
178
Population density
1 / sq mi
State FIPS
30
County FIPS
091
Geography
Land area
252.23 sq mi
Water area
0.02 sq mi
Latitude
48.5552
Longitude
-104.6244
Timezone
Mountain (MT)
Area code
406
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
30.7%
43.9%
44.2%
$50k – $100k
25.0%
31.9%
32.0%
$100k – $200k
44.3%
18.0%
19.2%
Over $200k
0.0%
6.2%
4.7%
Demographics & statistics
$0
Median household income
$106,300
Median home value
22.0%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 14 7.9%
18 and over 164 92.1%
65 and over 45 25.3%
Median age 41.8 years
Race & ethnicity
American Indian / Alaska Native
0.5%
Group Count %
White 166 88.8%
Hispanic or Latino 9 4.8%
Other race 9 4.8%
Two or more races 2 1.1%
American Indian / Alaska Native 1 0.5%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
30.7%
43.9%
44.2%
$50k – $100k
25.0%
31.9%
32.0%
$100k – $200k
44.3%
18.0%
19.2%
Over $200k
0.0%
6.2%
4.7%
Range % of households
Under $10k 6.3%
$15k–$25k 10.1%
$25k–$35k 7.6%
$35k–$50k 11.4%
$50k–$75k 13.9%
$75k–$100k 2.5%
$100k–$150k 5.1%
$200k+ 43.0%
Median income $0
Housing
Housing overview
Metric Value
Median home value $106,300
Median rent / month $0
Owner occupied 60.8%
Renter occupied 39.2%
Vacant 22.5%
Single-family detached 85.3%
Large apartment buildings 0.0%
Mobile homes 4.9%
Median rooms 8.0
Avg household size (owned) 2.02
Year built
Era %
2020 or later 0.0%
2010–2019 6.9%
2000–2009 0.0%
1990–1999 0.0%
1980–1989 10.8%
1970–1979 2.0%
1960–1969 38.2%
1950–1959 13.7%
1940–1949 2.9%
1939 or earlier 25.5%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 2.9%
2 bedrooms 13.7%
3 bedrooms 41.2%
4 bedrooms 9.8%
5+ bedrooms 32.4%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 12.7%
2 vehicles 22.8%
3 or more 64.6%
Heating fuel
Fuel type %
Utility gas 39.2%
Electricity 16.5%
Propane / LP gas 39.2%
Fuel oil 5.1%
Households & families
Household type Count %
Married-couple family 65 82.3%
Cohabiting couple 2 2.5%
Male householder, no spouse 0 0.0%
Female householder, no spouse 12 15.2%
Households with children under 18 10 12.7%
Households with seniors (65+) 29 36.7%
Average household size 2.25
Marital status
Status Male Female
Never married 54.0% 5.2%
Married 43.7% 83.1%
Separated 0.0% 0.0%
Widowed 0.0% 9.1%
Divorced 2.3% 2.6%
Education
Some college, no degree
46.3%
Graduate / professional
4.9%
Metric %
HS diploma or higher 94.3%
Bachelor's or higher 22.0%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 13 100.0%
High school 0 0.0%
College / grad school 0 0.0%
Employment
Industry of employment
Arts, food & hospitality
33.3%
Agriculture & mining
17.9%
Education & healthcare
4.1%
Finance & real estate
1.6%
Professional & management
0.8%
Occupation
Category %
Management, business & arts 18.7%
Service 34.1%
Sales & office 31.7%
Natural resources & construction 12.2%
Production & transportation 3.3%
Employment type
Type %
Private sector 52.8%
Government 0.8%
Self-employed 42.3%
Unpaid family workers 4.1%
Commute
Method %
Drive alone 44.0%
Carpool 54.9%
Public transit 0.0%
Walk 0.0%
Work from home 1.1%
Other means 0.0%
Avg commute (minutes) 18.7
Poverty
Married-couple families
3.1%
Female-led households
100.0%
Income support
Source % of households
Social Security 36.7%
Retirement income 55.7%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 3.8%
Health indicators
Condition %
Obesity 33.4%
High blood pressure 40.3%
High cholesterol 39.1%
Diabetes 14.1%
Heart disease 9.6%
Stroke 4.5%
Asthma 10.5%
Arthritis 33.1%
Kidney disease 4.0%
Pulmonary disease 9.9%
Cancer 9.1%
Behavior / access %
Smoking 20.4%
Binge drinking 18.6%
No physical activity 25.7%
Less than 7 hrs sleep 31.7%
Depression 21.0%
Fair or poor health 17.5%
Poor mental health 12.5%
Poor physical health 14.0%
No health insurance 11.1%
Visited doctor (checkup) 73.3%
Visited dentist 60.6%
Cholesterol screening 91.4%
Teeth loss 14.3%
Veterans & disability
Veterans Count %
Civilian veterans 18 11.0%
Disability %
Any disability 32.0%
Under 18 0.0%
18–64 years 30.3%
65 and over 46.7%
Health insurance coverage
Type %
Private insurance 88.8%
Public insurance 30.3%
No insurance 0.6%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 177 99.4%
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) 176 98.9%
Born in same state 176 98.9%
Born in different state 131 73.6%
Foreign born 0 0.0%
Naturalized citizen 2 1.1%
Not a US citizen 2 100.0%
Ancestry
Ancestry Count %
Arab 30 16.9%
Polish 29 16.3%
Dutch 19 10.7%
Ancestry Count %
French 3 1.7%
Italian 2 1.1%
Technology access
Metric % of households
Computer access 44.4%
Internet access 96.2%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59258
What city is ZIP code 59258 in?
ZIP code 59258 is primarily assigned to Reserve, Montana.
What county is ZIP code 59258 in?
ZIP code 59258 falls within Sheridan County, Montana.
Does ZIP code 59258 have an older population?
25% of residents in ZIP code 59258 are 65 or older, above the national average of ~17%.
Does ZIP code 59258 have a large retiree population?
37% of households in ZIP code 59258 receive Social Security income, suggesting a significant retiree or disability population.
Does ZIP code 59258 have a large veteran population?
11% of civilians in ZIP code 59258 are veterans, above the national average of ~7%.
What is the typical home value in ZIP code 59258?
The median home value in ZIP code 59258 is $106,300.
What timezone is ZIP code 59258 in?
ZIP code 59258 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 →