Castle Rock, Douglas County, Colorado Property Taxes

Name: Property Tax Bills Across Castle Rock, Douglas County, Colorado
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median Castle Rock, CO effective property tax rate: 0.71%, significantly lower than the national median of 1.02%, but higher than the Colorado state median of 0.55%.
Median Castle Rock, CO home value: $459,506
Median annual Castle Rock, CO tax bill: $3,263, $863 higher than the national median property tax bill of $2,400.

How are property taxes in Douglas County calculated?

Property taxes in Castle Rock, CO are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.

Understanding Castle Rock’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Castle Rock, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Castle Rock, Douglas County, Colorado Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.71%

Estimate Property Tax Bill

$3,262

$3,028

Ownwell’s Castle Rock Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Castle Rock with just two data points.

By entering your property's estimated assessed value, our calculator applies Castle Rock’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations.

This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Douglas County.

For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Castle Rock, Douglas County, Colorado

Local government entities set tax rates, which can vary widely within a state. This is because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate. While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process. Below, you can compare Castle Rock’s effective property tax rate to other cities in Colorado and the median property tax rates in Colorado and the U.S. Castle Rock, located in Douglas County, has a median property tax rate of 0.71%, which is lower than the national median of 1.02%. Within Castle Rock, the highest median tax rate is found in the 80108 zip code at 0.79%, while the lowest is in the 80104 zip code at 0.52%. Understanding these variations can help homeowners make informed decisions about property investments and potential tax savings.

Property Tax Rates Across Castle Rock, Douglas County, Colorado

Source: Ownwell

0.52%

0.71%

0.90%

Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.

Median Effective Castle Rock Tax Rate

0.71%

Median Effective Douglas County Tax Rate

0.64%

Median Effective Colorado Tax Rate

0.55%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Castle Rock, Douglas County, Colorado

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
80104	0.46%	0.46%	0.52%	0.98%	1.10%
80108	0.49%	0.69%	0.79%	0.97%	1.14%
80109	0.46%	0.71%	0.71%	0.71%	0.71%

Source: Ownwell

Property Tax Assessment Values Across Castle Rock, Douglas County, Colorado

When examining property taxes in Castle Rock, CO, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Douglas County Assessor's Office estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.

In Douglas County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of May. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Castle Rock.

For example, the median home price in Castle Rock is $459,506, with tax bills ranging significantly across the county. Zip code 80108 has the highest median home price at $556,885.

Property Tax Assessment Values Across Castle Rock, Douglas County, Colorado

Source: Ownwell

$328,961

$511,540

$694,118

Median Castle Rock Market Value

$459,506

Median Douglas County Market Value

$496,355

Median Colorado Market Value

$405,540

Median United States Market Value

$235,294

Property Tax Assessment Values Across Castle Rock, Douglas County, Colorado

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
80104	$250,605	$343,954	$409,806	$492,604	$627,614
80108	$258,330	$464,366	$556,885	$816,208	$1,155,969
80109	$345,415	$401,945	$464,282	$540,761	$656,321

Source: Ownwell

Property Tax Bills Across Castle Rock, Douglas County, Colorado

In Castle Rock, Douglas County, CO, property tax bills are calculated based on the assessed value of a home, which is derived from the market value. With a median home price of $459,506, the property tax rate is applied to this assessed value to determine the tax bill. Factors such as the location within the county, specific city services, and local school district funding requirements influence the final tax rate. Homeowners in Castle Rock might experience a range of tax bills, with the 25th percentile at $2,343, the 75th percentile at $4,327, and the 90th percentile reaching $5,911. Notably, the highest median tax bill in the area is $4,596 in the 80108 zip code, while the lowest is $2,539 in the 80104 zip code. These figures highlight the variability in tax bills across different areas. Ownwell assists homeowners by providing expert property tax appeal and exemption services, potentially reducing these bills and easing the financial burden on homeowners.

Property Tax Bills Across Castle Rock, Douglas County, Colorado

Source: Ownwell

$2,067

$3,613

$5,159

Median Castle Rock Tax Bill

$3,263

Median Douglas County Tax Bill

$3,328

Median Colorado Tax Bill

$2,283

Median United States Tax Bill

$2,400

Property Tax Bills Across Castle Rock, Douglas County, Colorado

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
80104	$1,329	$1,836	$2,539	$3,813	$4,691
80108	$2,476	$3,807	$4,596	$6,271	$9,027
80109	$2,256	$2,693	$3,118	$3,647	$4,409

Source: Ownwell