59820 ZIP Code — Alberton, MT

Mineral County, Montana

ZIP code 59820 is located in Alberton, Montana, within Mineral County. It covers approximately 372.13 square miles and serves a population of 2,007 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 406.

About ZIP code 59820

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $324,600. Owner-occupancy is high at 88%, well above the national average.

Median household income is $67,500. SNAP benefit usage at 18% of households reflects economic stress in the area. 39% 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 33 minutes is near the national average.

Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.

Overall, ZIP code 59820 reflects a community defined by high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

2,007

population

372.13

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

59820 ZIP code map

Cities in ZIP code 59820

Below are the cities the US Postal Service accepts for ZIP code 59820. Using any city not on this list may result in mail delivery delays.

City	Status
Alberton	Preferred

Nearby ZIP codes

59847 Lolo (12.7 mi) 59804 Missoula (17 mi) 59872 Superior (19.5 mi) 59834 Frenchtown (19.9 mi)

Demographics updated 06/2026

Population
Total population	2,007
Population density	5 / sq mi
State FIPS	30
County FIPS	061

Geography
Land area	372.13 sq mi
Water area	1.16 sq mi
Latitude	46.8820
Longitude	-114.5685
Timezone	Mountain (MT)
Area code	406

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.7%	49.2%	44.2%
$50k – $100k	36.9%	32.9%	32.0%
$100k – $200k	17.0%	15.4%	19.2%
Over $200k	4.4%	2.5%	4.7%

Demographics & statistics

2,007

Population

People per sq mi

45.8

Median age

$67,500

Median household income

$35,506

Per capita income

$324,600

Median home value

$878

Median monthly rent

87.7%

Home ownership

10.3%

Poverty rate

2.5%

Unemployment

870

Housing units

29.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

119

25–34

105

35–44

125

45–54

110

55–59

60–64

139

65–74

122

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	424	21.1%
18 and over	1,583	78.9%
65 and over	417	20.8%
Median age	45.8 years

Race & ethnicity

White 92.8%

Two or more races 2.9%

Hispanic or Latino 1.3%

Other race 0.9%

American Indian / Alaska Native 0.8%

Black or African American 0.7%

Asian 0.6%

Group	Count	%
White	1,887	92.8%
Two or more races	59	2.9%
Hispanic or Latino	27	1.3%
Other race	19	0.9%
American Indian / Alaska Native	16	0.8%
Black or African American	14	0.7%
Asian	12	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.7%	49.2%	44.2%
$50k – $100k	36.9%	32.9%	32.0%
$100k – $200k	17.0%	15.4%	19.2%
Over $200k	4.4%	2.5%	4.7%

Under $10k 7.2%

$10k–$15k 2.0%

$15k–$25k 5.5%

$25k–$35k 5.8%

$35k–$50k 9.9%

$50k–$75k 27.1%

$75k–$100k 10.8%

$100k–$150k 15.8%

$150k–$200k 10.5%

$200k+ 5.3%

Range	% of households
Under $10k	7.2%
$10k–$15k	2.0%
$15k–$25k	5.5%
$25k–$35k	5.8%
$35k–$50k	9.9%
$50k–$75k	27.1%
$75k–$100k	10.8%
$100k–$150k	15.8%
$150k–$200k	10.5%
$200k+	5.3%
Median income	$67,500

Housing

Home values

Under $50k 6.7%

$50k–$100k 2.3%

$100k–$150k 2.6%

$150k–$200k 9.8%

$200k–$300k 24.5%

$300k–$500k 35.2%

$500k–$1M 10.6%

$1M+ 8.4%

Housing overview

Metric	Value
Median home value	$324,600
Median rent / month	$878
Owner occupied	87.7%
Renter occupied	12.3%
Vacant	14.6%
Single-family detached	76.5%
Large apartment buildings	0.0%
Mobile homes	16.9%
Median rooms	5.8
Avg household size (owned)	2.31

Year built

Era	%
2020 or later	0.8%
2010–2019	12.0%
2000–2009	12.3%
1990–1999	20.7%
1980–1989	7.8%
1970–1979	23.8%
1960–1969	5.7%
1950–1959	3.9%
1940–1949	1.5%
1939 or earlier	11.4%

Bedrooms

Size	% of units
No bedroom (studio)	4.1%
1 bedroom	14.3%
2 bedrooms	18.4%
3 bedrooms	43.3%
4 bedrooms	17.1%
5+ bedrooms	2.8%

Vehicles per household

Vehicles	% of households
No vehicle	2.2%
1 vehicle	13.6%
2 vehicles	39.3%
3 or more	44.9%

Heating fuel

Fuel type	%
Utility gas	0.6%
Electricity	25.2%
Propane / LP gas	34.2%
Fuel oil	4.7%
Wood	32.7%

Households & families

Household type	Count	%
Married-couple family	446	53.7%
Cohabiting couple	68	8.2%
Male householder, no spouse	161	19.4%
Female householder, no spouse	155	18.7%
Households with children under 18	199	24.0%
Households with seniors (65+)	308	37.1%
Average household size	2.38

Marital status

Status	Male	Female
Never married	30.0%	19.5%
Married	55.1%	57.3%
Separated	0.0%	0.0%
Widowed	4.7%	12.0%
Divorced	10.2%	11.2%

Education

Less than 9th grade 1.0%

Some HS, no diploma 2.9%

HS graduate 23.3%

Some college, no degree 31.8%

Associate's degree 11.1%

Bachelor's degree 21.5%

Graduate / professional 8.4%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	29.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	13	3.7%
Kindergarten	31	8.9%
Elementary school	170	48.9%
High school	77	22.1%
College / grad school	57	16.4%

Employment

Industry of employment

Education & healthcare 21.6%

Agriculture & mining 14.9%

Retail trade 9.3%

Transportation & utilities 9.2%

Manufacturing 7.7%

Arts, food & hospitality 7.3%

Construction 6.9%

Professional & management 6.5%

Other services 4.2%

Public administration 3.8%

Finance & real estate 3.6%

Information 2.8%

Wholesale trade 2.3%

Occupation

Category	%
Management, business & arts	31.1%
Service	16.4%
Sales & office	19.2%
Natural resources & construction	14.9%
Production & transportation	18.4%

Employment type

Type	%
Private sector	74.0%
Government	14.7%
Self-employed	10.1%
Unpaid family workers	1.2%

Commute

Method	%
Drive alone	71.1%
Carpool	8.0%
Public transit	0.3%
Walk	2.0%
Work from home	17.0%
Other means	1.6%
Avg commute (minutes)	33.1

Poverty

All people 10.3%

Under 18 years 13.5%

18 and over 9.4%

Married-couple families 5.2%

Female-led households 11.9%

Income support

Source	% of households
Social Security	39.3%
Retirement income	25.9%
Supplemental Security	4.9%
Cash public assistance	3.7%
Food stamps / SNAP	17.8%

Health indicators

Condition	%
Obesity	29.5%
High blood pressure	31.4%
High cholesterol	33.4%
Diabetes	10.0%
Heart disease	7.3%
Stroke	3.4%
Asthma	10.2%
Arthritis	28.4%
Kidney disease	3.2%
Pulmonary disease	7.8%
Cancer	7.5%

Behavior / access	%
Smoking	17.8%
Binge drinking	20.1%
No physical activity	19.5%
Less than 7 hrs sleep	29.3%
Depression	23.7%
Fair or poor health	13.8%
Poor mental health	12.9%
Poor physical health	11.5%
No health insurance	11.9%
Visited doctor (checkup)	69.0%
Visited dentist	61.6%
Cholesterol screening	88.9%
Teeth loss	13.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	131	8.3%

Disability	%
Any disability	14.7%
Under 18	7.1%
18–64 years	11.5%
65 and over	31.4%

Health insurance coverage

Type	%
Private insurance	66.3%
Public insurance	43.3%
No insurance	6.6%
Uninsured under 19	1.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,858	92.6%
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)	1,988	99.1%
Born in same state	1,974	98.4%
Born in different state	879	43.8%
Foreign born	14	0.7%
Naturalized citizen	19	0.9%
Not a US citizen	7	36.8%

Ancestry

Ancestry	Count	%
French	228	11.4%
Italian	210	10.5%
Polish	100	5%
Arab	76	3.8%

Ancestry	Count	%
English	46	2.3%
Dutch	28	1.4%
German	24	1.2%
Norwegian	4	0.2%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	96.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 59820

What city is ZIP code 59820 in?

ZIP code 59820 is primarily assigned to Alberton, Montana.

What county is ZIP code 59820 in?

ZIP code 59820 falls within Mineral County, Montana.

Is ZIP code 59820 mostly owner-occupied?

88% of occupied units in ZIP code 59820 are owner-occupied, well above the national average.

Does ZIP code 59820 have a large retiree population?

39% of households in ZIP code 59820 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 59820?

The median home value in ZIP code 59820 is $324,600.

What is the population of ZIP code 59820?

ZIP code 59820 has an estimated population of 2,007 residents, with a density of 5 people per square mile.

What timezone is ZIP code 59820 in?

ZIP code 59820 observes the MST timezone.