Boulder, CO 80304 ZIP Code Profile

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Boulder, CO

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ZIP Code 80304: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Boulder, CO 80304

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 602
  • Single Family Addresses: 10,013
  • Multi-Family Addresses: 1,854
  • County: Boulder County
  • Centroid: Latitude 40.038, Longitude -105.283
  • Time Zone: Mountain Time Zone (UTC -7 hours)
  • Observes DST: Yes

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.


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Boulder, CO 80304 Data & Demographics (As of July 1, 2017)


Total Population 27,997
Daytime Population: Workers 11,968
Daytime Population: Residents 12,102
Total Daytime Population (TDP) 24,070
Ratio TDP/Total Population1 0.86
Population in Households 27,634
Population in Familes 19,022
Population in Group Qrtrs 363
Population Density2 3,926
Diversity Index3 39


Median Household Income $84,073
Average Household Income $121,274
Per Capita Income $52,090


Total Housing Units 12,306 (100%)
Owner Occupied HU 7,544 (61.3%)
Renter Occupied HU 4,371 (35.5%)
Vacant Housing Units 391 ( 3.2%)
Median Home Value $626,751
Average Home Value $655,243


Total Households 11,915
Average Household Size 2.32
Family Households 6,429
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 1.42% 1.28%
Households 1.28% 1.22%
Families 1.19% 1.15%
Median Household Income   3.35%
Per Capita Income   2.56%

Boulder, CO 80304 - Peer Comparisons by Rank and Percentile

The table below compares 80304 to the other 503 ZIP Codes in Colorado by rank and percentile using July 1, 2017 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 # 83 84th
Population Density # 52 90th
Diversity Index # 230 55th
Median Household Income # 73 86th
Per Capita Income # 37 93rd

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

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