Demographics & People — Rimrock Colony, Montana

Population Overview

Population (Census)	157
Estimated 2026	~0
Median Age	28.2
Total Households	15
Family Households	15
Average Household Size	7.53
Diversity Index	0.0 (relatively homogeneous)

Race & Ethnicity

White	131
Black or African American	0
Asian	0
Hispanic or Latino	0

Heritage & Ancestry

Group	Count
Unclassified or not reported	84
German	24
Canadian	20
Pennsylvania German	20
Russian	12

Language

English Only	101
Spanish	0
Population 5+	132

Veterans

Veterans	2
Population 18+	62

Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013 (county fallback). Data for Rimrock Colony, Montana.