80303 Sales Tax

What is the sales tax in zip code 80303? - The sales tax in zip code 80303 in Boulder, Colorado is 9.045% as of 2025. Use the 80303 sales tax rate calculator to calculate the sales tax for any purchase in 80303.

80303 Sales Tax Rate Calculator

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Below is a list of the state sales tax, city sales tax, and county tax rate for .

County State City Zip Code State Tax City Tax County Tax Total Tax
Boulder Colorado Boulder 80303 2.9% 3.86% 1.185% 9.045%

80304 Sales Tax