Big Arm Flag

Big Arm

County:
Lake County
County Seat:
No
Area (mi²):
5.419
State:
Montana

Big Arm is a CDP located in Lake County, Montana. Big Arm has a 2025 population of 166 . Big Arm is currently declining at a rate of 0% annually and its population has increased by 86.52% since the most recent census, which recorded a population of 89 in 2020.

The average household income in Big Arm is $55,157 with a poverty rate of 55.63%. The median age in Big Arm is 31.5 years: 40.9 years for males, and 29.6 years for females. For every 100 females there are 108.8 males.

166
Total Population
31
Density (mi²)

Big Arm Population

Big Arm Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Big Arm includes 60.56% Native American, 39.44% White, and smaller percentages for and multiracial populations.

Population by Race

Native American (60.56%)

White (39.44%)

Race
Population
Percentage (of total)
Native American8660.56%
White5639.44%

Big Arm Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Big Arm's average per capita income is $0. Household income levels show a median of $0. The poverty rate stands at 55.63%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Households-$55,157
Families-$55,157
Married Families--
Non Families--

$0

Average Income

$0

Median Household Income

55.63%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)