Big Arm, MT demographics:
population, income, and more

Total population
190
33.8% year-over-year change
Median household income
$/yr
% year-over-year change
Housing units
105
28.1% year-over-year change

Big Arm population

How many people live in Big Arm

Big Arm is home to 190 residents, according to the most recent Census data. Gender-wise, 54.7% of Big Arm locals are male, and 45.3% are female.

Total population
190
33.8% year-over-year change
Gender ratio
Male
54.7%
104
Female
45.3%
86
Value Percent YoY change
Male 104 54.7% 40.5%
Female 86 45.3% 26.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Big Arm is 30, with the population distributed as follows: about 23.7% are children under 15, then 11.6% are in the 15 to 24 age group. Finally, around 12.1% are 65 or older.

Median age
29.9
Age breakdown
Under 15
23.7%
15 to 24
11.6%
25 to 44
52.6%
45 to 64
0%
Over 65
12.1%
Value Percent YoY change
Under 15 45 23.7% 66.7%
15 to 24 22 11.6% 29.4%
25 to 44 100 52.6% 25.0%
Over 65 23 12.1% 27.8%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 190 100% 33.8%
Racial breakdown
White
31%
Black or African American
0%
American Indian and Alaska Native
47.4%
Asian
0%
Native Hawaiian and other Pacific Islander
21.6%
Two or more races
0%
Other
0%
Value Percent
White 59 31%
American Indian and Alaska Native 90 47.4%
Native Hawaiian and other Pacific Islander 41 21.6%

Households in Big Arm

A peek inside Big Arm households

Big Arm has 55 households, with an average of 3 members in each.

Households stats

Total households
55
12.2% year-over-year change
Average people per household
3
Non-family households
0
Family households
55
Value Percent YoY change
Family households 55 100% 12.2%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Big Arm

The housing landscape of Big Arm

Big Arm's housing consists of 105 units, with 58.1% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 41.9% of the housing landscape.

Housing units
105
28.1% year-over-year change
Housing types
Value Percent
1 unit, detached 61 58.1%
Mobile home 44 41.9%
Homes built since 2020
0
% year-over-year change

The age of buildings in Big Arm

In Big Arm, the median construction year is 1976. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built between 1950 and 1959 28 26.7% 16.7%
Built between 1960 and 1969 7 6.7% N/A
Built between 1970 and 1979 30 28.6% 11.1%
Built between 1980 and 1989 11 10.5% 0.0%
Built between 2000 and 2009 19 18.1% 111.1%
Built between 2010 and 2019 10 9.5% -9.1%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Big Arm occupancy rates

Meanwhile, 47.6% of all homes on the local market sit vacant.

Occupied housing units
55
12.2% year-over-year change
Occupancy breakdown
Renter occupied
0
Owner occupied
55
Value Percent YoY
change
Owner occupied 55 100% 12.2%
Unoccupied housing units
47.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Education in Big Arm

Big Arm education at a glance

About 42.3% of the population in Big Arm went to high school, while 37.4% pursued college studies. Another 8.1% earned an associate degree and 8.9% hold a bachelor’s.

Education level
Value Percent YoY change
No high school 4 3.2% N/A
High school diploma 52 42.3% 23.8%
College diploma 46 37.4% 35.3%
Associate degree 10 8.1% -9.1%
Bachelor's degree 11 8.9% 0.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Big Arm

How much people earn in Big Arm

The average annual household income in Big Arm was $56,325 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.1% change from the previous year.

Average household income in Big Arm
$56,325/year
2.1% year-over-year change

Big Arm income by age

Overall, 50% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Above poverty level
95
Below poverty level
95
Value Percent YoY
change
Above poverty level 95 50% 50.8%
Below poverty level 95 50% 20.2%

Employment in Big Arm

Workforce and job types in Big Arm

The job market in Big Arm is powered by 74 working residents, spread across a range of industries and roles. 86.5% of the working population are employed in professional or administrative positions, while 13.5% are in hands-on or service-based jobs.

Workforce demographics

Working population
74
34.5% year-over-year change
White collar
64
Blue collar
10
Value Percent YoY change
White collar 64 86.5% 45.5%
Blue collar 10 13.5% -9.1%
Employer type
Self employees
0%
Private companies
77%
Governmental workers
23%
Not for profit companies
0%
Value Percent YoY change
Private companies 57 77% 3.6%
Governmental workers 17 23% N/A

Transportation in Big Arm

How people get around in Big Arm

Means of transportation
Value Percent YoY change
Car 74 100% 34.5%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Big Arm by zipcode?

Zipcode Population Number of households Median income Average income
59910 692 291 $99,886 $116,575

Explore more communities

FAQs about Big Arm demographics 

What is the total population of Big Arm?

Big Arm has a total population of 190 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +33.8% compared to a year ago.

What is the gender ratio in Big Arm?

The gender ratio in Big Arm is as follows:
  • 54.7% males (104 residents)
  • 45.3% females (86 residents)

What is the median age in Big Arm?

The median age in Big Arm is 29.9.

What is the age distribution of the population in Big Arm?

The age distribution in Big Arm is as follows:
  • Under 15: 23.7% (45 residents)
  • Ages 15-24: 11.6% (22 residents)
  • Ages 25-44: 52.6% (100 residents)
  • Ages 45-64: 0% (0 residents)
  • Over 65: 12.1% (23 residents)

What is the racial and ethnic makeup of Big Arm?

The racial and ethnic makeup of Big Arm is as follows:
  • White: 31% (59 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 47.4% (90 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 21.6% (41 residents)
  • Two or More Races: 0% (0 residents)
  • Other: 0% (0 residents)

What percentage of the population in Big Arm are U.S.-born citizens?

U.S.-born citizens represent 100% of the population in Big Arm.

How many housing units are there in Big Arm?

There are 105 housing units in Big Arm, reflecting a +28.1% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Big Arm and what is the average household size?

Big Arm has a total of 55 households, with an average of 3 people in each.

What is the job market overview for Big Arm?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 86.5% (64 residents)
  • Blue-collar workers: 13.5% (10 residents)

Places of employment:
  • Self-employed: 0% (0 residents)
  • Private companies: 77% (57 residents)
  • Governmental workers: 23% (17 residents)
  • Not-for-profit companies: 0% (0 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025