What is the sales tax rate in Johnstown, Colorado?

The combined sales tax rate in Johnstown, Colorado is 7.900% as of 2026. This includes the Colorado state rate of 2.900% plus local jurisdiction taxes.

How is the Johnstown sales tax calculated?

Multiply your purchase amount by 7.900% (or 0.00790) to get the tax owed. For example, a $100 purchase incurs $7.90 in sales tax.

What is the Colorado state sales tax rate?

The base Colorado state sales tax rate is 2.900%. Local jurisdictions may add additional taxes on top of this rate.

Does Johnstown have a county sales tax?

Johnstown does not levy an additional county-level sales tax beyond the state base rate.

When was the Johnstown sales tax rate last updated?

The Johnstown sales tax rate was last verified on March 27, 2026. We cross-reference all rates against the official State Department of Revenue data.

Live Data: April 2026

Johnstown, CO Sales Tax Rate 2026

The combined sales tax rate in Johnstown, Colorado is 7.900%.

Combined Rate 7.900%

State2.900% City4.000%

Johnstown Sales Tax Breakdown

Jurisdiction	Rate
Colorado State Sales Tax	2.900%
City / Municipal Tax	4.000%
Special District Tax	1.000%
Total Combined Rate	7.900%

Which County Is Johnstown In?

Johnstown falls within Weld, Colorado. Weld imposes a 0.200% county-level sales tax in addition to the Colorado state base rate.

Johnstown ZIP Codes

The following ZIP codes are mapped to Johnstown for sales tax purposes. All listed codes apply the 7.900% combined rate.

80534

Nearby Tax Rates

Combined Rate

Combined Rate

Combined Rate

Business Nexus in Colorado

Economic Nexus Threshold

Selling into Colorado from out of state? Once you exceed $100,000 in annual sales or 200 transactions, you must register and collect Colorado sales tax.

FAQ: Johnstown Sales Tax

The combined sales tax rate in Johnstown, Colorado is 7.900% as of 2026.

Multiply your purchase price by 7.900% to find the tax owed. A $500 purchase would include $39.50 in sales tax.

Groceries are generally taxable in Colorado. Check the official Department of Revenue for specific exemptions.

Vehicle purchases in Johnstown are subject to the 7.900% combined rate, though some states apply different rules for vehicle sales. Verify with the Colorado Department of Revenue or DMV.

Register for a sales tax permit through the official Colorado Department of Revenue website. Registration is typically free and required before collecting any sales tax.

Sales Tax Calculator

Using 7.900% rate for Johnstown, CO

Purchase Amount ($)

Tax Amount $0.00

Total with Tax $100.00

Rate applied: 7.900% combined

Official Tax Authority

Colorado Department of Revenue

Filing Deadline: Returns generally due the 20th. File via Revenue Online (ROL) portal.

Visit Official Portal (303) 238-7378