Boulder, Colorado Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Boulder, Colorado is 106,274 as of the 2023 American Community Survey, making it the 12th-largest city in Colorado. The median household income is $85,364, the median home value is $982,600, and the median age is 28.8.
The population has grown 9.3% since 2010 (97,752 → 106,803).
106,274
Population
3954
People / sq mi
$85,364
Median Income
$982,600
Median Home Value
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Boulder covers 26.9 sq mi of land at 3954 people per square mile.
About Boulder, CO
Educational attainment is the headline number in Boulder: 76.8% of adults 25 and older have a four-year degree. Boulder is a city in Colorado with a population of 106,274. It ranks #12 among cities in Colorado by population.
The typical household here earns about $85,364, above the US median of $78,538. About 5.9% of residents live below the federal poverty level, below the national 12.4%. Real estate commands a premium here — a median home value of $982,600, with typical rent around $1,924.
Boulder is among the best-educated US cities: 76.8% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Working from home is common here: 31.6% of workers do so, above the national 14.0%, and the average commute runs about 19 minutes each way.
The education numbers are the throughline: a college-heavy population in Boulder usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Boulder city Population History (2010-2024)
The city of Boulder city had a population of 97,752 in 2010 and 106,803 in 2024, a 9.3% growth over 14 years. The peak was 108,418 in 2020. Average annual growth rate: 0.65%.
106,803
Population (2024)
97,752
Population (2010)
108,418
Peak (2020)
0.65%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 97,752 |
| 2011 | 100,137 |
| 2012 | 101,160 |
| 2013 | 102,719 |
| 2014 | 104,451 |
| 2015 | 106,742 |
| 2016 | 107,128 |
| 2017 | 106,447 |
| 2018 | 106,008 |
| 2019 | 105,673 |
| 2020 | 108,418 |
| 2021 | 104,316 |
| 2022 | 106,079 |
| 2023 | 106,634 |
| 2024 | 106,803 |
Race & Ethnicity
| White | 81.8% |
| Black or African American | 1.1% |
| Asian | 0.1% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Economy & Income
$85,364
Median Household Income
$59,450
Per Capita Income
5.9%
Poverty Rate
3.9%
Unemployment Rate
Housing
$982,600
Median Home Value
$1,924
Median Rent
47.9%
Owner-Occupied
Education
96.9%
High School+
76.8%
Bachelor's+
Commute
5.9%
Drive Alone
41.9%
Public Transit
31.6%
Work From Home
19.0 min
Avg Commute
Community Profile
59.0%
Foreign Born
85.1%
Non-English at Home
2.8%
Veterans
7.5%
With Disability
96.5%
Health Insurance
98.5%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 27.3% |
| Finance, Insurance & Real Estate | 20.1% |
| Education, Health Care & Social Services | 14.4% |
| Manufacturing | 6.4% |
| Information | 5.0% |
| Arts, Entertainment & Food Services | 3.9% |
| Transportation & Warehousing | 3.5% |
| Construction | 2.8% |
| Retail Trade | 2.7% |
| Public Administration | 2.6% |
| Agriculture & Mining | 0.8% |
Largest cities in Colorado
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Part of Colorado
Metro areas in Colorado
City rankings
Frequently Asked Questions
Boulder, Colorado has a population of 106,274 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 12th-largest city in Colorado.
The median household income in Boulder, Colorado is $85,364, with 5.9% of residents living below the federal poverty level.
The median home value in Boulder, Colorado is $982,600, with median monthly rent at $1,924 and a homeownership rate of 47.9%.
The median age in Boulder, Colorado is 28.8 years. The population is 51.8% male and 48.2% female.
The population has grown 9.3% since 2010 (97,752 → 106,803).
Where to stay in Boulder
Visiting or relocating to Boulder, CO? Compare hotels and short-term rentals across the metro — live availability and prices.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.