What is the sales tax in zip code 80104? - The sales tax in zip code 80104 in Castle Rock, Colorado is 8.1% as of 2025. Use the 80104 sales tax rate calculator to calculate the sales tax for any purchase in 80104.
80104 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 |
|---|---|---|---|---|---|---|---|
| Douglas | Colorado | Castle Rock | 80104 | 2.9% | 4.2% | 1% | 8.1% |