Big Arm ZIP Code List — Lake County, MT

There is one unique ZIP code in Big Arm, Montana and it is 59910. Area code: 406.

ZIP codes

19.25

sq mi land

41.55

sq mi water

406

area code

Big Arm, MT ZIP code map

About Big Arm, MT

Big Arm is a small community located in the scenic state of Montana. Nestled within Lake County, it provides picturesque views and a peaceful atmosphere. This quaint area is a hidden gem for those looking to experience the natural beauty of Montana away from the hustle and bustle of urban life.

Location & geography

Big Arm is situated near the western shore of Flathead Lake, one of the largest natural lakes in the western United States. The community is approximately 9 miles from Polson, 15 miles from Ronan, and about 23 miles from Kalispell, making it accessible to larger towns nearby. The terrain features a mix of land and water, with a land area of 19.25 square miles and a water area of 41.55 square miles, creating ideal recreational opportunities.

Community & economy

The character of Big Arm is defined by its close-knit community and a slower pace of life that attracts those seeking tranquility. Residents often engage in various outdoor activities such as fishing, boating, and hiking, taking full advantage of the stunning natural surroundings. The local economy is primarily supported by tourism, as visitors flock to the area to enjoy the beauty of Flathead Lake and the surrounding landscape.

Transportation

Big Arm can be accessed primarily via Montana Highway 35, which runs along the eastern shore of Flathead Lake. The nearest major airport is Glacier Park International Airport, located approximately 30 miles away in Kalispell. Public transportation options may be limited, but the area is easily navigated by car for residents and visitors.

History

Big Arm was established in the early 20th century, with the early economy largely dependent on agriculture and fishing. Over the years, the region has witnessed growth driven by its scenic allure, making it a popular spot for tourism. Notable events in its history reflect the vibrant culture of Montana, often centered around outdoor recreation and community gatherings.

Did you know?

A surprising fact about Big Arm is that it offers some of the best views of Flathead Lake and the surrounding mountains, making it a photographer's paradise. Additionally, despite its small size, the community fosters a rich cultural heritage with various local events throughout the year.

ZIP codes for Big Arm, MT (1)

ZIP code	City	County	Map
59910	Big Arm	Lake	View map

Demographics & statistics

658

Population

54.7

Median age

Median household income

$45,851

Per capita income

$538,000

Median home value

Median monthly rent

75.1%

Home ownership

23.3%

Poverty rate

13.2%

Unemployment

382

Housing units

25.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	79	12.0%
18 and over	579	88.0%
65 and over	204	31.0%
Median age	54.7 years

Race & ethnicity

White 65.1%

American Indian / Alaska Native 29.6%

Hispanic or Latino 2.7%

Other race 2.7%

Group	Count	%
White	440	65.1%
American Indian / Alaska Native	200	29.6%
Hispanic or Latino	18	2.7%
Other race	18	2.7%

Household income

Under $10k 17.4%

$25k–$35k 5.3%

$50k–$75k 27.5%

$75k–$100k 4.5%

$100k–$150k 6.8%

$150k–$200k 31.7%

$200k+ 6.8%

Range	% of households
Under $10k	17.4%
$25k–$35k	5.3%
$50k–$75k	27.5%
$75k–$100k	4.5%
$100k–$150k	6.8%
$150k–$200k	31.7%
$200k+	6.8%
Median income	$0

Housing

Home values

Under $50k 6.0%

$50k–$100k 11.6%

$200k–$300k 17.6%

$300k–$500k 9.5%

$500k–$1M 49.7%

$1M+ 5.5%

Housing overview

Metric	Value
Median home value	$538,000
Median rent / month	$0
Owner occupied	75.1%
Renter occupied	24.9%
Vacant	40.8%
Single-family detached	90.0%
Large apartment buildings	0.0%
Mobile homes	10.0%
Median rooms	6.1
Avg household size (owned)	2.65

Year built

Era	%
2020 or later	0.0%
2010–2019	25.0%
2000–2009	7.4%
1990–1999	30.8%
1980–1989	20.1%
1970–1979	5.1%
1960–1969	2.2%
1950–1959	9.4%
1940–1949	0.0%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	3.3%
1 bedroom	10.7%
2 bedrooms	28.6%
3 bedrooms	36.8%
4 bedrooms	20.5%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	8.7%
2 vehicles	27.2%
3 or more	64.2%

Heating fuel

Fuel type	%
Utility gas	2.3%
Electricity	45.7%
Propane / LP gas	30.2%
Wood	21.9%

Households & families

Household type	Count	%
Married-couple family	208	78.5%
Cohabiting couple	0	0.0%
Male householder, no spouse	43	16.2%
Female householder, no spouse	14	5.3%
Households with children under 18	50	18.9%
Households with seniors (65+)	152	57.4%
Average household size	2.48

Marital status

Status	Male	Female
Never married	21.2%	28.7%
Married	78.8%	66.6%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	4.7%

Education

Less than 9th grade 0.0%

Some HS, no diploma 7.1%

HS graduate 17.9%

Some college, no degree 36.5%

Associate's degree 12.8%

Bachelor's degree 22.2%

Graduate / professional 3.6%

Metric	%
HS diploma or higher	92.9%
Bachelor's or higher	25.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	15	10.9%
High school	38	27.5%
College / grad school	85	61.6%

Employment

Industry of employment

Public administration 24.5%

Information 19.9%

Education & healthcare 19.5%

Retail trade 7.8%

Manufacturing 6.7%

Agriculture & mining 5.3%

Arts, food & hospitality 5.0%

Construction 4.3%

Finance & real estate 3.5%

Professional & management 3.5%

Occupation

Category	%
Management, business & arts	49.3%
Service	9.9%
Sales & office	31.2%
Natural resources & construction	9.6%
Production & transportation	0.0%

Employment type

Type	%
Private sector	69.1%
Government	30.9%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.3%
Carpool	5.3%
Public transit	0.0%
Walk	0.0%
Other means	0.0%
Avg commute (minutes)	31.9

Poverty

All people 23.3%

Under 18 years 32.9%

18 and over 21.9%

Married-couple families 22.1%

Female-led households 0.0%

Income support

Source	% of households
Social Security	48.7%
Retirement income	20.8%
Supplemental Security	0.0%
Cash public assistance	8.7%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
High blood pressure	36.9%
High cholesterol	37.3%
Heart disease	9.1%
Stroke	4.1%
Asthma	9.8%
Arthritis	32.8%
Kidney disease	3.8%
Pulmonary disease	8.2%
Cancer	9.5%

Behavior / access	%
Binge drinking	16.6%
No physical activity	21.3%
Less than 7 hrs sleep	29.1%
Fair or poor health	14.7%
Poor mental health	11.5%
Poor physical health	12.1%
No health insurance	10.0%
Visited doctor (checkup)	73.3%
Visited dentist	65.5%
Cholesterol screening	92.7%
Teeth loss	12.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	47	8.1%

Disability	%
Any disability	10.2%
Under 18	0.0%
18–64 years	0.0%
65 and over	32.8%

Health insurance coverage

Type	%
Private insurance	50.2%
Public insurance	45.3%
Uninsured under 19	30.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	632	96.0%
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)	658	100.0%
Born in same state	658	100.0%
Born in different state	353	53.6%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Dutch	69	10.5%
Italian	52	7.9%

Ancestry	Count	%
French	35	5.3%
Arab	21	3.2%

Technology access

Metric	% of households
Computer access	40.3%
Internet access	94.7%

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

Frequently asked questions

What is the ZIP code for Big Arm, MT?

Big Arm, MT has one ZIP code: 59910.

What is the main ZIP code for Big Arm, MT?

The primary ZIP code for Big Arm, MT is 59910. The city uses area code 406 for phone service.

What county is Big Arm, MT in?

Big Arm is located in Lake County, Montana.

How many ZIP codes are in Big Arm, MT?

Big Arm, MT has 1 ZIP code.