Boulder County Property Tax Calculator
Locality estimate page for Boulder County, Colorado. Use this county/locality rate for faster screening, then confirm parcel-specific details with your local tax authority.
County/Locality Effective Rate
0.53%
State Effective Rate
0.50%
Sample Annual Tax Difference
$128
Median Home Value (ACS)
$756,300
Median Annual Tax Bill (ACS)
$3,998
Owner-Occupied Households
84,900
The typical owner-occupied home in Boulder County is valued at $756,300 with a median real estate tax bill of $3,998 per year — an effective rate of 0.53%. Both figures come from the same ACS release, so the ratio is an estimate rather than an aggregate of individual bills.
State Mortgage Context: Colorado
Some counties follow standard FHA limits while higher-cost counties may qualify for elevated FHA limits.
State Effective Tax Rate
0.50%
FHA 1-Unit Floor
$541,287
FHA 1-Unit Ceiling
$1,249,125
In Boulder County, Colorado, the current county-level estimate is 0.53%, or approximately $2,120 annually on a $400,000 home.
How to Use This County Estimate
Step 1
Enter your property value and assessment assumptions.
Step 2
Apply exemptions that may reduce taxable value.
Step 3
Compare county/locality estimate against statewide fallback.
Boulder County Property Tax Snapshot
Estimated effective rate: 0.53% · vs Colorado: 0.50% · vs national benchmark: 0.90%
| Home value | Estimated annual tax | Estimated monthly tax |
|---|---|---|
| $250,000 | $1,325 | $110 |
| $400,000 | $2,120 | $177 |
| $500,000 | $2,650 | $221 |
| $750,000 | $3,975 | $331 |
| $1,000,000 | $5,300 | $442 |
Compare Nearby Property Taxes
- Boulder County0.53%
- Arapahoe County0.52%
- Weld County0.52%
- Douglas County0.55%
- Larimer County0.50%
- Pueblo County0.50%
- Jefferson County0.48%
Source Transparency
Source: U.S. Census Bureau, ACS 5-Year Estimates (B25103 / B25077)
View sourceLast updated: August 2026
Estimates only. Confirm parcel-specific amounts with the official local taxing authority.
Need Statewide Context?
Visit Colorado mortgage snapshot or return to the national calculator hub.