Colorado Celebrates '303 Day' with 'Buy Colorado Day'

State lawmakers make March 3 an official day to support local Colorado businesses and products.

Published on Feb. 26, 2026

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Colorado has celebrated the area code 303 on March 3 for over a decade, and in 2025 the state legislature officially designated the day as 'Buy Colorado Day.' The resolution encourages residents to support local Colorado businesses, brands, and products, recognizing the state's thriving outdoor recreation, agriculture, restaurant, and craft beer industries.

Why it matters

The '303 Day' celebration highlights Colorado's unique culture and pride in its local businesses and innovations. By making it an official 'Buy Colorado Day,' the state aims to drive economic activity to homegrown companies and boost awareness of the many iconic Colorado brands and products.

The details

The 'Buy Colorado Day' resolution acknowledges a number of famous Colorado inventions, from the cowboy hat to the cheeseburger, and urges residents to 'spend their hard-earned dollars at local businesses that benefit us all.' Coloradans are encouraged to explore the outdoors, support local artists, and enjoy Colorado music and cuisine on March 3.

  • March 3, 2025 was officially designated as 'Buy Colorado Day' by the state legislature.
  • The '303 Day' celebration has been an unofficial tradition in Colorado since at least 2009.

The players

Colorado State Legislature

The state government body that passed the resolution officially designating March 3 as 'Buy Colorado Day'.

Frank J. Wisner

The owner of Cripple Creek Brewing who is credited with inventing the root beer float, originally called the 'Black Cow,' in Colorado in 1893.

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What’s next

Coloradans are encouraged to visit buycoloradoday.com for more information on how to celebrate and support local Colorado businesses on March 3.

The takeaway

Colorado's '303 Day' celebration showcases the state's pride in its unique culture, innovations, and thriving local business community. By officially designating March 3 as 'Buy Colorado Day,' the state aims to drive economic activity to homegrown companies and raise awareness of the many iconic Colorado brands and products.