Longmont, ColoradoSales Tax Rate 2025

Longmont is located in Boulder County, Colorado. Longmont sales tax rate is 8.72%.

The total sales tax rate in Longmont comprises the state tax, the sales tax for county, and any applicable special or district taxes. The city also imposes an additional sales tax of 3.53. The table below provides a breakdown of the sales tax rate by jurisdiction.

Combined Sales Tax Rate	8.72%
Colorado	2.90%
Boulder County	1.19%
Longmont	3.53%
District / Special Tax	1.10%

Longmont Sales Tax Calculator

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The TaxHero sales tax calculator provides a combined sales tax rate based on a full address lookup. A complete address ensures precision since ZIP codes may cross different tax jurisdictions. Results are for reference and may need additional context for compliance. Contact us today for a demo and learn how TaxHero can support your business.

Longmont District and Special Tax Rates+

To help you identify the correct sales tax rate in Longmont, you may look up the sales tax rate by address and ZIP code in our calculator.

Longmont Finance Department Contact Information+

State: Colorado Department of Revenue
City: Longmont Finance Department
Contact: 303-651-8672, Sales.Tax@LongmontColorado.gov

ZIP codes in Longmont, CO+

80501 80502 80503 80504

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