How many zip codes does Colorado have?

Colorado has 711 zip codes including standard delivery, PO Box, and unique zip codes.

What is the zip code for Denver, Colorado?

The primary zip code for Denver, Colorado is 80202.

What area code is used in Colorado?

Colorado uses area codes 303, 720, 719, and 970.

What time zone is Colorado in?

Colorado is in the Mountain Time Zone.

What number do Colorado zip codes start with?

Colorado zip codes in the Denver area begin with 802. The state uses ranges from 800 to 816.

How do I find a zip code by address in Colorado?

Use the search bar at the top of this page to enter a city name or zip code. For precise address-level lookup, the USPS ZIP Code Lookup tool at usps.com is the authoritative source.

Are all Colorado zip codes the same area code?

No, Colorado uses multiple area codes: 303, 720, 719, and 970, depending on the region.

Do zip codes in Colorado ever cross county lines?

Yes, some zip codes cross county boundaries. When this occurs, the zip code may appear under multiple county listings on this site. The zip code number is always the most reliable geographic identifier.

What city is zip code 80202 in?

ZIP code 80202 is in Denver, Colorado, in Denver County.

What county is zip code 80202 in?

ZIP code 80202 is in Denver County, Colorado.

What is the population of 80202?

The estimated population of ZIP code 80202 is approximately 18,180 residents.

What city is zip code 80203 in?

ZIP code 80203 is in Denver, Colorado, in Denver County.

What county is zip code 80203 in?

ZIP code 80203 is in Denver County, Colorado.

What is the population of 80203?

The estimated population of ZIP code 80203 is approximately 21,650 residents.

What city is zip code 80204 in?

ZIP code 80204 is in Denver, Colorado, in Denver County.

What county is zip code 80204 in?

ZIP code 80204 is in Denver County, Colorado.

What is the population of 80204?

The estimated population of ZIP code 80204 is approximately 34,534 residents.

What city is zip code 80301 in?

ZIP code 80301 is in Boulder, Colorado, in Boulder County.

What county is zip code 80301 in?

ZIP code 80301 is in Boulder County, Colorado.

What is the population of 80301?

The estimated population of ZIP code 80301 is approximately 24,593 residents.

What city is zip code 80521 in?

ZIP code 80521 is in Fort Collins, Colorado, in Larimer County.

What county is zip code 80521 in?

ZIP code 80521 is in Larimer County, Colorado.

What is the population of 80521?

The estimated population of ZIP code 80521 is approximately 38,200 residents.

What city is zip code 80901 in?

ZIP code 80901 is in Colorado Springs, Colorado, in El Paso County.

What county is zip code 80901 in?

ZIP code 80901 is in El Paso County, Colorado.

What is the population of 80901?

The estimated population of ZIP code 80901 is approximately 19,234 residents.

What city is zip code 81001 in?

ZIP code 81001 is in Pueblo, Colorado, in Pueblo County.

What county is zip code 81001 in?

ZIP code 81001 is in Pueblo County, Colorado.

What is the population of 81001?

The estimated population of ZIP code 81001 is approximately 31,160 residents.

What city is zip code 81501 in?

ZIP code 81501 is in Grand Junction, Colorado, in Mesa County.

What county is zip code 81501 in?

ZIP code 81501 is in Mesa County, Colorado.

What is the population of 81501?

The estimated population of ZIP code 81501 is approximately 23,998 residents.

What zip codes are in Denver County, Colorado?

Denver County, Colorado contains zip codes including 80202, 80203, 80204, 80205, 80206, 80209, 80210, 80211.

What cities are near Denver, Colorado?

Cities near Denver, Colorado include Colorado Springs, Boulder, Fort Collins, Aurora, Pueblo, Lakewood, and Arvada.

What is the largest city by population in Colorado?

Denver is the largest city in Colorado with a population of approximately 715,522.

What is a standard zip code vs a PO Box zip code?

A standard zip code serves a geographic delivery area for residential and business mail. A PO Box zip code is used exclusively for post office box addresses and does not correspond to a geographic delivery area for street addresses.

Can an address have a different city name than the actual city?

Yes. USPS sometimes assigns an acceptable city name to an address that differs from the actual incorporated municipality. The zip code is always the most reliable identifier.

How often do zip codes change?

ZIP code changes are rare. The USPS occasionally assigns new zip codes to growing communities or consolidates zip codes in declining areas. This site is updated regularly.

What does a unique zip code mean?

A unique zip code is assigned to a single high-volume mail recipient such as a large company, government agency, or university. It is not used for general address delivery.

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Colorado Zip Code Frequently Asked Questions

Find answers to the most common questions about Colorado zip codes below.

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General Questions

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