Boulder County Property Taxes
Boulder County, Colorado
Effective Tax Rate
0.00%
144.9% above state avgMedian Annual Tax
$0
$318/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.54%
At a Glance
Median Home Value
$713,900
State avg ▲ $398,069
Tax w/ Mortgage/yr
$3,842
$320/mo escrow
Tax w/o Mortgage/yr
$3,779
$315/mo
State Tax Rate Rank
#60
of 64 counties (1 = lowest)
Data Story
About Property Taxes in Boulder County, Colorado
Boulder taxes above national average
Boulder County's effective rate of 0.535% exceeds the national median of 0.52%, placing it in the top 50% of U.S. counties. The median property tax of $3,821 is 42% higher than the national median of $2,690, reflecting both high tax rates and premium home values.
Among Colorado's highest-taxed
Boulder County's effective rate of 0.535% runs 36% above Colorado's 0.393% average, ranking it in the upper tier statewide. Its median tax of $3,821 is 145% above the state median of $1,560—the highest in Colorado.
Highest taxes in metro Denver
Boulder County's 0.535% rate exceeds all nearby Denver metro counties including Adams (0.604%), Arapahoe (0.526%), and Broomfield (0.616%). Only Broomfield's absolute dollars are higher due to even pricier homes ($632k vs. $714k).
What your $714k home costs
A median-valued home in Boulder County at $713,900 generates approximately $3,821 in annual property taxes. With mortgage tax deductions included, your effective cost remains high at $3,842 per year.
Appeal if assessment outpaces market
Boulder County's booming market can trigger aggressive assessments that exceed true market value, especially after sales spikes. File an appeal if your assessed value exceeds recent comparable sales—hundreds of Boulder homeowners recover thousands annually.
How Boulder County Compares
Median Annual Property Tax
Boulder County
0.54%
Effective rate
Colorado Avg
0.39%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Boulder County, Colorado?
How much are property taxes in Boulder County?
How does Boulder County compare to the Colorado average?
What is the median home value in Boulder County, Colorado?
Why is Boulder County property tax rate higher than the Colorado average?
How does Boulder County rank for property taxes in Colorado?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in Colorado
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.