Boulder is a city located in Jefferson County Montana. Boulder has a 2024 population of 1,308. It is also the county seat of Jefferson County. Boulder is currently growing at a rate of 1.95% annually and its population has increased by 8.46% since the most recent census, which recorded a population of 1,206 in 2020.
The average household income in Boulder is $79,712 with a poverty rate of 8.72%. The median age in Boulder is 40.8 years: 41.1 years for males, and 37.9 years for females.
According to the most recent ACS, the racial composition of Boulder was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,233 | 92.99% |
| Native American | 56 | 4.22% |
| Other race | 19 | 1.43% |
| Two or more races | 18 | 1.36% |
| Black or African American | 0 | 0% |
| Asian | 0 | 0% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Native American
Other race
Two or more races
Black or African American
Asian
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 526 | 2.31 | 71.1 | 28.9 |
| Married | 246 | 3.15 | 74.4 | 25.6 |
| Non Family | 226 | 1.21 | 72.6 | 27.4 |
| Female | 54 | 3.09 | 50 | 50 |
| Male | 0 | 0 | 0 | 0 |
3.03
Average Family Size
2.31
Average Household Size
71.1%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 10 | 1.1% |
| Associates Degree | 83 | 9.11% |
| Bachelors Degree | 154 | 16.9% |
| Graduate Degree | 87 | 9.55% |
| High School Graduate | 230 | 25.25% |
| Less Than 9th Grade | 62 | 6.81% |
| Some College | 285 | 31.28% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 837 | 770 | 241 |
| Native American | 44 | 39 | 0 |
| Other Race | 19 | 19 | 0 |
| 2+ Races | 11 | 11 | 0 |
| Hispanic | 8 | 8 | 0 |
The highest rate of high school graduation is among other race people with a rate of 100%.
The highest rate of bachelors degrees is among white people with a rate of 28.79%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $70,167 | $63,229 | $71,583 |
| Graduate Degree | $57,404 | $0 | $70,000 |
| High School Graduate | $33,625 | $0 | $36,563 |
| Less Than 9th Grade | $178,229 | $0 | $0 |
| Overall | $37,955 | $39,205 | $35,547 |
| Some College | $31,765 | $38,674 | $21,932 |
$37,955
Average Earnings
$39,205
Average Male
$35,547
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
98.58% of Boulder residents speak only English, while 1.42% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.26% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 1,189 | 113 | 9.5% |
8.72%
Overall Poverty Rate
14.12%
Male Poverty Rate
2.63%
Female Poverty Rate
The race most likely to be in poverty in Boulder is White, with 9.5% below the poverty level.
The race least likely to be in poverty in Boulder is White, with 9.5% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.39%. Among those working part-time, it was 18.93%, and for those that did not work, the poverty rate was 15.64%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 26.87% |
| High School | 14.78% |
| Bachelors or Greater | 13.69% |
| Some College | 7.87% |
rate
Rate | Poverty |
|---|---|
| Male Employed | 13.33% |
| Female Employed | 5.76% |
| Male Unemployed | 0% |
| Female Unemployed | 0% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $64,375 | $99,866 |
| Households | $61,250 | $79,712 |
| Married Families | $100,781 | $-999,999,999 |
| Non Families | $40,789 | $44,321 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
42.6%
Overall Marriage Rate
38.9%
Male Marriage Rate
48.0%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
98
Number of Veterans
98
Male Veterans
0
Female Veterans
War | Veterans |
|---|---|
| Second Gulf War | 38 |
| First Gulf War | 31 |
| Vietnam | 30 |
| Korea | 0 |
| World War II | 0 |
count
Age Group | Veterans |
|---|---|
| 55 to 64 | 41 |
| 75+ | 30 |
| 35 to 54 | 27 |
| 18 to 34 | 0 |
| 65 to 74 | 0 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 90 | 9.58% |
| Other Race | 8 | 42.11% |
| Hispanic | 8 | 100% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
12.24%
Veteran Poverty Rate
68.37%
Veteran Disability Rate
LaborForceParticipation
62.2%
Labor Force Participation
58.2%
Employment Rate
6.5%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
57.47%
Born in Boulder
100%
Native Born
0%
Foreign Born
0%
Non Citizen
0%
Naturalized
100% of Boulder residents were born in the United States, with 57.47% having been born in Montana. 0% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Europe.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 1,437 | 26 | 1.84% |
| 2028 | 1,411 | 26 | 1.88% |
| 2027 | 1,385 | 25 | 1.84% |
| 2026 | 1,360 | 26 | 1.95% |
| 2025 | 1,334 | 26 | 1.99% |
| 2024 | 1,308 | 25 | 1.95% |
| 2023 | 1,283 | 16 | 1.26% |
| 2022 | 1,267 | 33 | 2.67% |
| 2021 | 1,234 | 28 | 2.32% |
| 2020 | 1,206 | -70 | -5.49% |
| 2019 | 1,276 | 13 | 1.03% |
| 2018 | 1,263 | 15 | 1.2% |
| 2017 | 1,248 | 14 | 1.13% |
| 2016 | 1,234 | 23 | 1.9% |
| 2015 | 1,211 | 9 | 0.75% |
| 2014 | 1,202 | 8 | 0.67% |
| 2013 | 1,194 | 15 | 1.27% |
| 2012 | 1,179 | 1 | 0.08% |
| 2011 | 1,178 | -2 | -0.17% |
| 2010 | 1,180 | 0 | 0% |