List of 81 Zip Codes in Boulder County, Colorado

On this page, we'll list out the 81 Boulder County, Colorado ZIP codes we have, including the land area and county name of each code.

Colorado is the 8th largest state by total land area, with a land area of 104,094 square miles (269,602 square kilometers) and has a total population of 5,684,926 people as of the most recent U.S. Census survey.

Boulder County makes up approximately 4.80% of the total land area for Colorado and we have 81 zip codes for the county in our database, which you can see details of below, with land area information for each zip code.

ZIP Code Land Area (Sq. Meters) Land Area (Sq. Miles) Land Area (Sq. Kilometers)
80020 51,170,500 20 51
80020 51,170,500 20 51
80020 51,170,500 20 51
80020 51,170,500 20 51
80025 30,273,300 12 30
80025 30,273,300 12 30
80026 57,722,300 22 58
80026 57,722,300 22 58
80026 57,722,300 22 58
80026 57,722,300 22 58
80027 50,311,700 19 50
80027 50,311,700 19 50
80027 50,311,700 19 50
80027 50,311,700 19 50
80027 50,311,700 19 50
80301 75,105,000 29 75
80301 75,105,000 29 75
80301 75,105,000 29 75
80301 75,105,000 29 75
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80302 213,861,000 83 214
80303 57,102,000 22 57
80303 57,102,000 22 57
80303 57,102,000 22 57
80303 57,102,000 22 57
80303 57,102,000 22 57
80304 23,685,300 9 24
80304 23,685,300 9 24
80305 18,723,700 7 19
80305 18,723,700 7 19
80310 1,124,500 0 1
80403 346,184,000 134 346
80403 346,184,000 134 346
80403 346,184,000 134 346
80403 346,184,000 134 346
80403 346,184,000 134 346
80422 334,491,000 129 334
80422 334,491,000 129 334
80422 334,491,000 129 334
80422 334,491,000 129 334
80455 90,048,200 35 90
80455 90,048,200 35 90
80455 90,048,200 35 90
80455 90,048,200 35 90
80466 233,242,000 90 233
80466 233,242,000 90 233
80466 233,242,000 90 233
80466 233,242,000 90 233
80481 185,357,000 72 185
80481 185,357,000 72 185
80481 185,357,000 72 185
80501 32,047,300 12 32
80503 235,873,000 91 236
80503 235,873,000 91 236
80503 235,873,000 91 236
80503 235,873,000 91 236
80503 235,873,000 91 236
80504 256,553,000 99 257
80504 256,553,000 99 257
80504 256,553,000 99 257
80504 256,553,000 99 257
80504 256,553,000 99 257
80504 256,553,000 99 257
80510 171,285,000 66 171
80516 103,396,000 40 103
80516 103,396,000 40 103
80516 103,396,000 40 103
80516 103,396,000 40 103
80516 103,396,000 40 103
80540 409,889,000 158 410
80540 409,889,000 158 410
80544 128,817 0 0

More Counties in Colorado

If you want to search and find zip codes for different counties in Colorado, the list below contains links to each of the 66 Colorado counties we have data for.

Data Source(s)

All of the zip code data on this page is sourced from the United States Census Bureau geography reference files.

Link To or Reference This Page

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If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!

  • "List of 81 Zip Codes in Boulder County, Colorado". NameCensus.com. Accessed on April 20, 2024. https://namecensus.com/zip-codes/colorado/boulder-county/.

  • "List of 81 Zip Codes in Boulder County, Colorado". NameCensus.com, https://namecensus.com/zip-codes/colorado/boulder-county/. Accessed 20 April, 2024

  • List of 81 Zip Codes in Boulder County, Colorado. NameCensus.com. Retrieved from https://namecensus.com/zip-codes/colorado/boulder-county/.