Boulder, CO Profile: Facts, Map & Data


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Boulder, Colorado - Basic Facts

The City of Boulder had a population of 104,521 as of July 1, 2016. Boulder ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Colorado. See peer rankings below.

The primary coordinate point for Boulder is located at latitude 40.0274 and longitude -105.2519 in Boulder County. The formal boundaries for the City of Boulder (see map below) encompass a land area of 24.85 sq. miles and a water area of 1.02 sq. miles. Boulder County is in the Mountain time zone (GMT -7). The elevation is 5,328 feet.

The City of Boulder (GNIS ID: 2409883) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Colorado is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Boulder is located within Boulder Division of Boulder County.

Beneath the boundary map are tables with Boulder population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Boulder, CO Boundary Map

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Boulder, CO Data & Demographics (As of July 1, 2016)


Total Population 104,521
Population in Households 95,527
Population in Familes 50,261
Population in Group Qrtrs 8,994
Population Density1 4,206
Diversity Index2 38


Total Households 43,691
Average Household Size 2.19
Family Households 17,516
Average Family Size 3


Total Housing Units 45,896 (100%)
Owner Occupied HU 19,503 (42.5%)
Renter Occupied HU 24,188 (52.7%)
Vacant Housing Units 2,205 ( 4.8%)
Median Home Value $533,553
Average Home Value $572,205


Median Household Income $54,090
Average Household Income $87,344
Per Capita Income $37,856
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.11% 1.05%
Households 0.88% 1.11%
Families 0.74% 0.95%
Median Household Income   1.29%
Per Capita Income   1.7%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Boulder, CO - Peer Comparisons by Rank and Percentile

The table below compares Boulder to the other 458 incorporated cities, towns and CDPs in Colorado by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 11 98th
Population Density1 # 18 96th
Diversity Index2 # 201 56th
Median Household Income # 218 53rd
Per Capita Income # 104 78th

Additional comparisons and rankings can be made with a VERY EASY TO USE Colorado Census Data Comparison Tool.

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