Boulder, Colorado Population 2018

Boulder is the county seat and most populous city of Boulder County, Colorado. It is also the 11th largest city in the state. Boulder is located at the foothills of the Rocky Mountains about 25 miles northwest of Denver.

The estimated population of Boulder is 104,000, up from 97,395 at the 2010 census. The population of the Boulder Metropolitan Statistical Area is much larger, estimated at 300,000. The city has a population density of 3,947 people per square mile, or 1,524 per square kilometer.

Boulder is well-known for its history, the University of Colorado and its large hippie population in the 1960s. The city also frequently tops rankings for education, health and quality of life.

Boulder Demographics

At the 2010 census, the racial and ethnic composition of Boulder was:

  • White: 88.0%
  • Asian: 4.7%
  • Black or African American: 0.9%
  • Native American: 0.4%
  • Pacific Islander: 0.1%
  • Other race: 3.2%
  • Two or more races: 2.6%
  • Hispanic or Latino of any race: 8.7%

Boulder has a population younger than the national average with a median age of 28.7 years compared to the U.S. median age of 37.2. About one-third of Boulder's population are between the ages of 18 and 24, mostly due to a large number of university students.

The city has a median household income of just over $57,000, with a median family income of $113,600. Full-time female workers make $47,500 compared to full-time male workers at $72,000. A full 25% of the population lives below the poverty line. Boulder usually has higher home prices than nearby areas.

Boulder History

Boulder was first home to Native Americans who had a village nearby. The first non-native settlement was established in 1858 by gold seekers. The Boulder City Town Company was created a year later with lots that had a purchase price of $1,000, which was lowered to bring in more residents. The government was formalized in 1871 when the town was incorporated.

By 1880, Boulder had a population of more than 3,000. Many trainees came to the area after World War II as business people and students, joining veterans attending the University. Prior to this, the population had not grown since the 1920s.

Boulder Facts

  • Among 14 comparable cities, Boulder has the most people who walk to work, work at home and carpool, and it ranks second in terms of people who bike.
  • Bicyling is so popular in the city that the Boulder Creek bike path is often plowed of snow before the roads.
  • Colorado has fewer overweight people per capital and more people who exercise regularly than any other state.
  • 70% of Boulderites own a bicycle.
  • Boulder is the largest beer-producing triangle in the world with Anheuser-Busch and Coors.
  • Robert Redford was a janitor in Boulder before he became famous.
  • Boulder has a "blue line" which deters expanding structures over 4 stories that would prevent views of the mountains.
  • Boulder's top rankings include: Lesser-Known LGBT Family-Friendly City, Best City to Raise an Outdoor Kid, Top 10 Healthiest Cities to Live and Retire (#6), Top Brainiest City, Top Happiest City, Top 10 Cities for Artists (#8).
Year Population Growth Growth Rate
2017107,125-719-0.67%
2016107,8443820.36%
2015107,4622,1812.07%
2014105,2811,6741.62%
2013103,6071,5541.52%
2012102,0531,0040.99%
2011101,0492,2792.31%
201098,7704,0974.33%
200094,67311,36113.64%
199083,3126,6278.64%
198076,6859,81514.68%
197066,87029,15277.29%
196037,71817,71988.60%
195019,9997,04154.34%
194012,9581,73515.46%
193011,2232171.97%
192011,0061,46715.38%
19109,5393,38955.11%
19006,1502,82084.68%
18903,3302618.50%
18803,0690.00%

Boulder Population in 2018Source: By Taken by Jesse Varner. Modified by AzaToth. [CC BY-SA 2.5 (https://creativecommons.org/licenses/by-sa/2.5)], via Wikimedia Commons

Population by Race

Race Population
White92,834
Asian5,585
Two or More Races3,332
Some Other Race2,066
Black or African American1,203
American Indian and Alaska Native309
Native Hawaiian and Other Pacific Islander91

Race Data via US Census (2016 ACS 5-Year Survey)

Boulder Population Pyramid 2018

0k0k0k0k0k Male Population0k0k0k0k0k Female Population757065605550454035302520151050

Boulder Median Age

28.7


Total

27.6


Male

30.3


Female

Lancaster Adults

There are 92,985 adults in Boulder.

Boulder Age Dependency

30.6

Age Dependency Ratio

13.4

Old Age Dependency Ratio

17.2

Child Dependency Ratio

Boulder Housing Indicators

Indicator Value
Median Number of Rooms (per House)
4.8
Houses Without Mortgage
6,996
Houses With Mortgage
13,245
Vacancy Rate
5.5
Median Rent
1,313
Median Home Value
554,500
Renter-Occupied Units
22,172
Owner-Occupied Units
20,241
Total Housing Units
44,892

This chart shows the employment and labor force participation rates in Boulder for residents over 16 years of age. The 2015 unemployment rate is 4.1% and the labor force participation rate is 66.8%.

Boulder Family/Household Indicators

Indicator Value
Average Household Size
2.25
Average Family Size
2.85
Total Households
42413
Married Couple Households
14475
Male Householder (no wife) Families
1243
Female Householder (no husband) Families
2076
Non Family Households
24619
Total Families
17794
Households With Own Children
7904
Unmarried Partner Households (Opposite Sex)
7.3
Unmarried Partner Households (Same Sex)
0.5

Boulder Income Distribution

Indicator Value
Under $10,000
4,553
$10,000 to $14,999
2,099
$15,000 to $24,999
3,636
$25,000 to $34,999
3,543
$35,000 to $49,999
4,476
$50,000 to $74,999
6,159
$75,000 to $99,999
4,511
$100,000 to $149,999
5,800
$150,000 to $199,999
3,159
Over $200,000
4,477

Boulder Household Income

Income

Median

Mean

Boulder

Colorado

$60,569

$62,520

$93,430

$84,384

Under 10k10k - 15k15k - 25k25k - 35k35k - 50k50k - 75k75k - 100k100k - 150k150k - 200kOver 200k00.0450.090.1350.18

Boulder Education Data

Boulder Educational Attainment (over 25)

Indicator Value Percentage
Less Than 9th Grade
1,0661.78%
9th to 12th Grade
1,0891.82%
High School Graduate
4,7117.87%
Some College
7,49212.51%
Associates Degree
2,3003.84%
Bachelors Degree
20,16533.68%
Graduate Degree
23,05238.50%