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.
- Denver
Denver, CO
958,706 residents
- Colorado Springs
Colorado Springs, CO
525,713 residents
- Aurora
Aurora, CO
389,246 residents
- Littleton 302,400
Littleton, CO
302,400 residents
- Fort Collins 175,625
Fort Collins, CO
175,625 residents
- Pueblo 151,815
Pueblo, CO
151,815 residents
- Arvada 122,111
Arvada, CO
122,111 residents
- Boulder 120,932
Boulder, CO
120,932 residents
- Longmont 117,461
Longmont, CO
117,461 residents
- Grand Junction 103,017
Grand Junction, CO
103,017 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.
Counties in Colorado
Which cities have the most ZIPs in Colorado?
Side-by-side: Compare 80013 vs 80015 →
ZIP Codes in Colorado
More CO ZIP codes
Official Data Resources
Frequently Asked Questions
How many ZIP codes are in Colorado?▼
What is the average income in Colorado?▼
What are the largest cities in Colorado?▼
Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023); USPS ZIP Code Tabulation Areas via the HUD USPS Crosswalk.
Read our methodology to see how this data is sourced, computed, and verified.