Castle Rock, CO Property Tax Rates
Compare property tax rates across 3 ZIP codes in Castle Rock, Colorado.
Avg Tax Rate
0.56%
Avg Annual Tax
$3,884
Avg Home Value
$683,067
ZIP Codes
3
Property Tax Overview: Castle Rock, CO
Castle Rock has 3 ZIP codes with property tax data. The average effective tax rate across these ZIPs is 0.56%, which is 36% above the Colorado average of 0.42%. Annual property taxes range from $3,455 (ZIP 80109) to $4,971 (ZIP 80108).
For a home at Castle Rock's median value of $683,067, property taxes add approximately $321/month to housing costs. Castle Rock home values are above the Colorado median of $454,133, meaning the monthly tax impact is correspondingly higher.
Property tax rates within Castle Rock vary by 0.08 percentage points across its ZIP codes. This variation typically reflects different school district boundaries, special assessment zones, and municipal service areas within the city.
Castle Rock vs Colorado Average
Effective Tax Rate
36% above state average
Annual Property Tax
Median Home Value
Frequently Asked Questions
What is the average property tax rate in Castle Rock, CO?
The average effective property tax rate in Castle Rock, Colorado is 0.56%, based on 3 ZIP codes.
How much is property tax in Castle Rock, CO?
The average median annual property tax in Castle Rock is $3,884 per year, with a median home value of $683,067.
Which ZIP code in Castle Rock has the lowest property tax rate?
ZIP code 80109 has the lowest effective tax rate in Castle Rock at 0.53%, with a median annual tax of $3,455.
How many ZIP codes are in Castle Rock, CO?
Castle Rock, Colorado has 3 ZIP codes with property tax data available.
Which ZIP code in Castle Rock has the highest property tax rate?
ZIP code 80108 has the highest effective tax rate in Castle Rock at 0.61%, with a median annual tax of $4,971.
How do Castle Rock property taxes compare to the Colorado average?
Castle Rock's average effective rate of 0.56% is 36% above the Colorado state average of 0.42%.
What factors affect property tax rates between ZIP codes in Castle Rock?
Property tax rate differences within Castle Rock are typically driven by school district boundaries (which can account for 40–60% of a tax bill), special assessment zones for fire, water, or transit services, and whether a ZIP falls within city limits or an unincorporated area. Each taxing jurisdiction sets its own rate, which is why adjacent ZIP codes can have noticeably different effective rates.
Tips for Castle Rock Homeowners
- •Appeal your assessment: If your home is assessed higher than its market value, you can file a property tax appeal. Studies suggest 30–60% of properties are over-assessed. Most counties offer a free informal review process.
- •Check your exemptions: Homestead exemptions can reduce your taxable value and are available to primary residents in most states. Senior, veteran, and disability exemptions may also apply. Exemptions must typically be applied for — they are not automatic.
- •Know your assessment cycle: Colorado reassesses properties periodically. After buying a home, your next tax bill may reflect a new assessment based on your purchase price. Budget accordingly, especially if you bought above prior assessed values.
- •Compare ZIP codes before buying: Even within Castle Rock, effective tax rates can vary significantly across ZIP codes due to different school district overlays. Use PropertyTaxByZip to compare specific ZIPs before choosing a neighborhood.
Looking for county-level property tax data? View Douglas County on TaxByCounty.com
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.