Overview
1,033
Total Population
40.2
Median age
49.08%
Female population %
103.7:100
Gender ratio (M:F)
40-44 years
Largest age group
56.8
Total dependency ratio
White
Largest racial group
29
Hispanic population
Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Boulder's population is old compared to the rest of the country:
- The median age in Boulder is 40.2, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
- Boulder's population under 18 was 24.10%, compared to the 22.51% nationwide.
- Boulder's elderly or the senior population (over 65 age) was 13.75% as compared to 16.04% nationwide.
- Of the total population in Boulder, 22.46% were under the age of 15, 17.52% aged 15 to 29, 46.27% aged 30 to 64, 11.91% aged 65 to 84, and 1.84% were 85 years of age and older.
Read more about Boulder, MT population by age ➔
Gender
There are 19 less females than males in Boulder:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.08% females and 50.92% males in Boulder, MT.
- The Boulder, MT gender ratio is 103.7:100 i.e. 103.7 men to 100 women (1.037).
- For male population, the largest age group is 40-44 years with a population of 94.
- For the female population, the largest age group is 0-4 years with a population of 77.
Read more about Boulder, MT population by gender ➔
Race / Ethnicity
Boulder's population is moderately diverse:
- Racial distribution of Boulder population: 91.87% are White, 5.32% are American Indian and Alaska Native and 2.81% are multiracial.
- Boulder's racial breakdown clearly shows that there is an absolute majority of White population in the city.
- By ethnicity, 29 is Hispanic or Latino (of any race), and 1,004 (97.19% of the total population) is Non-Hispanic.
- The largest racial group in Boulder is White with a population of 949 (91.87% of the total population).
Read more about Boulder, MT population by race ➔
Year by year
Boulder's population has already reached its peak and is showing a trend of decline:
- The peak population was 1,513 in the year 2009
- From 2000 to 2010, Boulder's population decreased by 156 (11.68%), as compared to the national growth of 9.63%.
- From 2010 to 2020, Boulder's population increased by 26 (2.20%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
- Between the year 2000 and 2022, Boulder's population was lowest in year 2011 at 1,178.
Read more about Boulder, MT population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
- U.S. Census Bureau Population Estimates Population Estimates Program (PEP)