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Montana ZIP Codes
Sweet Grass County
Melville, MT
59055
59055 ZIP Code — Melville, MT
Sweet Grass County, Montana
ZIP code 59055 is located in
Melville ,
Montana ,
within Sweet Grass County .
It covers approximately 227.48 square miles and serves a population of
123 residents.
This is a standard ZIP code in the Mountain (MT) timezone,
served by area code 406 .
59055 ZIP code map
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Cities in ZIP code 59055
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
123
Population density
1 / sq mi
State FIPS
30
County FIPS
097
Geography
Land area
227.48 sq mi
Water area
0.13 sq mi
Latitude
46.0651
Longitude
-109.6502
Timezone
Mountain (MT)
Area code
406
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
64.7%
43.0%
44.2%
$50k – $100k
23.5%
41.4%
32.0%
$100k – $200k
5.9%
13.4%
19.2%
Over $200k
5.9%
2.2%
4.7%
Demographics & statistics
$95,000
Median household income
$225,000
Median home value
35.9%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 59 48.0%
18 and over 64 52.0%
65 and over 16 13.0%
Median age 33.3 years
Race & ethnicity
Group Count %
White 116 89.2%
Hispanic or Latino 7 5.4%
Two or more races 7 5.4%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
64.7%
43.0%
44.2%
$50k – $100k
23.5%
41.4%
32.0%
$100k – $200k
5.9%
13.4%
19.2%
Over $200k
5.9%
2.2%
4.7%
Range % of households
$25k–$35k 9.4%
$35k–$50k 18.8%
$50k–$75k 3.1%
$75k–$100k 21.9%
$100k–$150k 18.8%
$150k–$200k 25.0%
$200k+ 3.1%
Median income $95,000
Housing
Housing overview
Metric Value
Median home value $225,000
Median rent / month $944
Owner occupied 43.8%
Renter occupied 56.3%
Vacant 31.9%
Single-family detached 97.9%
Large apartment buildings 0.0%
Mobile homes 2.1%
Median rooms 7.3
Avg household size (owned) 2.86
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 10.6%
1990–1999 2.1%
1980–1989 0.0%
1970–1979 31.9%
1960–1969 4.3%
1950–1959 21.3%
1940–1949 10.6%
1939 or earlier 19.1%
Bedrooms
Size % of units
No bedroom (studio) 8.5%
1 bedroom 0.0%
2 bedrooms 4.3%
3 bedrooms 31.9%
4 bedrooms 46.8%
5+ bedrooms 8.5%
Vehicles per household
Vehicles % of households
No vehicle 0.0%
1 vehicle 21.9%
2 vehicles 40.6%
3 or more 37.5%
Heating fuel
Fuel type %
Propane / LP gas 62.5%
Wood 31.3%
Households & families
Household type Count %
Married-couple family 30 93.8%
Cohabiting couple 0 0.0%
Male householder, no spouse 2 6.3%
Female householder, no spouse 0 0.0%
Households with children under 18 18 56.3%
Households with seniors (65+) 9 28.1%
Average household size 3.84
Marital status
Status Male Female
Never married 17.9% 13.5%
Married 76.9% 86.5%
Separated 0.0% 0.0%
Widowed 5.1% 0.0%
Divorced 0.0% 0.0%
Education
Some college, no degree
40.6%
Graduate / professional
0.0%
Metric %
HS diploma or higher 100.0%
Bachelor's or higher 35.9%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 31 72.1%
High school 12 27.9%
College / grad school 0 0.0%
Employment
Industry of employment
Agriculture & mining
72.4%
Transportation & utilities
8.6%
Finance & real estate
1.7%
Professional & management
1.7%
Occupation
Category %
Management, business & arts 44.8%
Service 3.4%
Sales & office 10.3%
Natural resources & construction 32.8%
Production & transportation 8.6%
Employment type
Type %
Private sector 67.2%
Government 3.4%
Self-employed 22.4%
Unpaid family workers 6.9%
Commute
Method %
Drive alone 65.5%
Carpool 1.7%
Public transit 0.0%
Walk 0.0%
Work from home 31.0%
Other means 1.7%
Avg commute (minutes) 16.0
Poverty
Married-couple families
0.0%
Female-led households
0.0%
Income support
Source % of households
Social Security 25.0%
Retirement income 0.0%
Supplemental Security 0.0%
Cash public assistance 0.0%
Food stamps / SNAP 0.0%
Health indicators
Condition %
Obesity 31.2%
High blood pressure 30.5%
High cholesterol 32.6%
Diabetes 9.2%
Heart disease 6.4%
Stroke 2.9%
Asthma 9.2%
Arthritis 26.6%
Kidney disease 2.7%
Pulmonary disease 6.6%
Cancer 7.0%
Behavior / access %
Smoking 17.1%
Binge drinking 23.1%
No physical activity 18.8%
Less than 7 hrs sleep 30.7%
Depression 21.1%
Fair or poor health 11.9%
Poor mental health 12.2%
Poor physical health 10.2%
No health insurance 11.5%
Visited doctor (checkup) 69.5%
Visited dentist 64.5%
Cholesterol screening 88.3%
Teeth loss 11.5%
Veterans & disability
Veterans Count %
Civilian veterans 6 9.4%
Disability %
Any disability 6.5%
Under 18 10.2%
18–64 years 0.0%
65 and over 12.5%
Health insurance coverage
Type %
Private insurance 73.2%
Public insurance 30.1%
No insurance 6.5%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 113 91.9%
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) 113 91.9%
Born in same state 113 91.9%
Born in different state 74 60.2%
Foreign born 0 0.0%
Naturalized citizen 10 8.1%
Not a US citizen 10 100.0%
Ancestry
Ancestry Count %
French 11 8.9%
Polish 5 4.1%
Ancestry Count %
Italian 3 2.4%
Arab 3 2.4%
Technology access
Metric % of households
Computer access 26.0%
Internet access 93.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 59055
What city is ZIP code 59055 in?
ZIP code 59055 is primarily assigned to Melville, Montana.
What county is ZIP code 59055 in?
ZIP code 59055 falls within Sweet Grass County, Montana.
Is ZIP code 59055 family-oriented?
48% of residents in ZIP code 59055 are under 18, reflecting a younger, family-oriented community.
Is ZIP code 59055 mostly rentals?
56% of occupied units in ZIP code 59055 are renter-occupied.
Does ZIP code 59055 have a large veteran population?
9% of civilians in ZIP code 59055 are veterans, above the national average of ~7%.
What is the population of ZIP code 59055?
ZIP code 59055 has an estimated population of 123 residents, with a density of 1 people per square mile.
What timezone is ZIP code 59055 in?
ZIP code 59055 observes the MST timezone.
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