Big Arm vs Rocky Point

A side-by-side comparison of Big Arm and Rocky Point: population, income, housing, and more.

Big Arm and Rocky Point are places in Montana. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Big Arm has the higher population (142 vs 127 in Rocky Point). Since 2019, Rocky Point's population has grown faster (+323.3% vs -16.0%).

Population, income & housing

	Big Arm	Rocky Point
Population	142	127
Median age	31.5 yrs	69.5 yrs
Median home value	—	$602,900
Housing units	82	115
Homeownership rate	100.0%	100.0%
Bachelor's degree or higher	11.2%	51.2%
Unemployment rate	0.0%	0.0%

Trends (ACS 5-year, 2019–2023)

	Big Arm	Rocky Point
Population	169 → 142 (-16.0%)	30 → 127 (+323.3%)
Median home value	—	$585,900 → $602,900 (+2.9%)

Big Arm

Population

169142

Rocky Point

Population

30127

Median home value

$585,900$602,900

Age & race/ethnicity

Age distribution (share)

	Big Arm	Rocky Point
Under 5	19.0%	0.0%
5 to 17	12.0%	0.0%
18 to 24	0.0%	0.0%
25 to 34	31.0%	0.0%
35 to 44	25.4%	0.0%
45 to 54	0.0%	0.0%
55 to 64	0.0%	13.4%
65 to 74	7.7%	66.9%
75 and over	4.9%	19.7%

Race & ethnicity (share)

	Big Arm	Rocky Point
White (non-Hispanic)	39.4%	86.6%
Black or African American	0.0%	0.0%
American Indian & Alaska Native	60.6%	0.0%
Asian	0.0%	0.0%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.0%	0.0%
Two or more races	0.0%	13.4%
Hispanic or Latino	0.0%	0.0%

Educational attainment (age 25+)

Share of adults 25+

	Big Arm	Rocky Point
No high school diploma	25.5%	0.0%
High school graduate	17.3%	0.0%
Some college or associate's	45.9%	48.8%
Bachelor's degree	11.2%	44.1%
Graduate or professional degree	0.0%	7.1%

Commute to work

How workers get to work (share)

	Big Arm	Rocky Point
Drove alone	100.0%	100.0%
Carpooled	0.0%	0.0%
Public transit	0.0%	0.0%
Walked	0.0%	0.0%
Bicycle	0.0%	0.0%
Worked from home	0.0%	0.0%
Other means	0.0%	0.0%

Housing

Units in structure (share)

	Big Arm	Rocky Point
1-unit, detached	53.7%	100.0%
1-unit, attached	0.0%	0.0%
2 to 4 units	0.0%	0.0%
5 to 19 units	0.0%	0.0%
20 or more units	0.0%	0.0%
Mobile home & other	46.3%	0.0%

Poverty & households

	Big Arm	Rocky Point
Poverty rate	55.6%	0.0%
Average household size	2.90	2.27
Median year structure built	1976	1979