Boulder County, CO vs King County, WA
Property Tax Rate Comparison 2025
Quick Answer
Boulder County, CO: 0.43% effective rate · $2,335/yr median tax · median home $543,091
King County, WA: 1.01% effective rate · $5,651/yr median tax · median home $559,559
Side-by-Side Comparison
| Metric | Boulder County, CO | King County, WA | National Avg |
|---|---|---|---|
| Effective Tax Rate | 0.43% | 1.01% | 1.06% |
| Median Annual Tax | $2,335 | $5,651 | $2,778 |
| Median Home Value | $543,091 | $559,559 | $268,728 |
| Population | 330,758 | 2,269,675 | — |
Boulder County, CO
- Effective Rate
- 0.43%
- Median Annual Tax
- $2,335
- Median Home Value
- $543,091
- Population
- 330,758
King County, WA
- Effective Rate
- 1.01%
- Median Annual Tax
- $5,651
- Median Home Value
- $559,559
- Population
- 2,269,675
Frequently Asked Questions
What is the property tax difference between Boulder County and King County?
Boulder County, CO has an effective property tax rate of 0.43% with a median annual tax of $2,335. King County, WA has a rate of 1.01% with a median annual tax of $5,651. The difference is 0.58 percentage points.
Which county has higher property taxes, Boulder County or King County?
King County, WA has the higher effective property tax rate at 1.01% compared to 0.43%.
How do Boulder County and King County compare to the national average?
The national average effective property tax rate is 1.06%. Boulder County is below average at 0.43%, and King County is below average at 1.01%.