State profile · CO

Colorado ZIP Codes

Demographics, income, and housing across every ZIP code in Colorado, benchmarked against all 50 states, DC and Puerto Rico.

525
ZIP codes
5,029,374
Population
$88,682
Avg ZIP income
64
Counties

The verdict

Colorado holds the 28th-most ZIP codes in the country, with an average ZIP household income 23% above the national ZIP median — 13th of 52 states & territories.

#28
of 52 by ZIP count
#13
of 52 by avg income
5,029,374
people across all ZIPs
64
counties covered

Ranks compare this state against all reporting states using ZIP-level Census ACS 5-Year aggregates.

Colorado (CO) contains 525 ZIP codes spread across 64 counties and 384 distinct cities. Together those ZIP areas cover a total population of 5,029,374 based on Census ACS 5-Year Estimates. ZIP-level granularity matters here: Colorado stretches across very different economic zones, and a single state-wide average hides the 10x spread you will see between its highest-income and lowest-income ZIP codes in the table below.

The economic baseline across Colorado ZIPs shows an average median household income of $88,682 and an average home value of $484,372, with a state-wide average median age of 43.6. These averages are computed over every ZIP in CO with reported data, not weighted by population, so small rural ZIPs count the same as metropolitan ones. Use them as a reference line, then drill into the ZIP tables to see where affluent suburbs, rural counties, and urban cores deviate from the state mean.

The largest urban concentrations in Colorado by population are Denver, Colorado Springs, Aurora, Littleton, Fort Collins, and each city aggregates multiple ZIP codes worth of Census data on its own city page. Every record in this view comes from publicly available federal datasets, primarily the U.S. Census Bureau American Community Survey and USPS ZIP Code Tabulation Area files, with no proprietary scoring, estimation, or editorial adjustment. Click any county to drill down to its ZIP-level detail, or jump directly to a ZIP code to see household income, housing cost, demographic breakdown, nearby ZIPs, and FHFA home-price history for that specific five-digit area.

Largest cities in Colorado

Top 10 cities by population in Colorado

Total resident population aggregated from every ZIP code the Census assigns to each city.

residents

What this shows Population concentrates heavily in the state's largest metros, while most of its 384 cities are far smaller, a pattern the ZIP-level tables below make concrete.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

Counties in Colorado

Largest counties in Colorado by population

Top 15 of 64 counties — each links to its full ZIP-level breakdown

  1. 1
    El Paso 624,622 residents
    44 ZIP codes
  2. 2
    Arapahoe 593,345 residents
    20 ZIP codes
  3. 3
    Denver 576,764 residents
    29 ZIP codes
  4. 4
    Jefferson 575,264 residents
    28 ZIP codes
  5. 5
    Adams 398,913 residents
    17 ZIP codes
  6. 6
    Boulder 305,480 residents
    19 ZIP codes
  7. 7
    Larimer 295,933 residents
    18 ZIP codes
  8. 8
    Douglas 287,575 residents
    14 ZIP codes
  9. 9
    Weld 250,512 residents
    32 ZIP codes
  10. 10
    Pueblo 159,260 residents
    12 ZIP codes
  11. 11
    Mesa 146,821 residents
    18 ZIP codes
  12. 12
    Broomfield 62,286 residents
    2 ZIP codes
  13. 13
    Garfield 61,648 residents
    6 ZIP codes
  14. 14
    La Plata 51,697 residents
    5 ZIP codes
  15. 15
    Eagle 49,893 residents
    11 ZIP codes

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Which cities have the most ZIPs in Colorado?

Side-by-side: Compare 80013 vs 80015 →

ZIP Codes in Colorado

Most populous ZIP codes in Colorado

The 12 largest by population — all 525 CO ZIPs are listed below and on the state sitemap

  1. 1
    80013 · Aurora 69,588 residents
    1,921/sq mi
  2. 2
    80015 · Aurora 62,432 residents
    1,684/sq mi
  3. 3
    80219 · Denver 61,296 residents
    3,153/sq mi
  4. 4
    80134 · Parker 55,075 residents
    378/sq mi
  5. 5
    80634 · Greeley 52,861 residents
    548/sq mi
  6. 6
    80229 · Denver 49,598 residents
    1,503/sq mi
  7. 7
    80631 · Greeley 48,603 residents
    183/sq mi
  8. 8
    80525 · Fort Collins 48,419 residents
    769/sq mi
  9. 9
    80011 · Aurora 47,461 residents
    743/sq mi
  10. 10
    80504 · Longmont 46,876 residents
    183/sq mi
  11. 11
    80020 · Broomfield 46,871 residents
    914/sq mi
  12. 12
    80012 · Aurora 46,665 residents
    2,316/sq mi

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Frequently Asked Questions

How many ZIP codes are in Colorado?
Colorado has 525 ZIP codes across 64 counties, with a total population of 5,029,374.
What is the average income in Colorado?
The average median household income across Colorado ZIP codes is $88,682. The average home value is $484,372.
What are the largest cities in Colorado?
The largest cities in Colorado by population include Denver (958,706), Colorado Springs (525,713), Aurora (389,246), Littleton (302,400), Fort Collins (175,625).

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023); USPS ZIP Code Tabulation Areas via the HUD USPS Crosswalk.