Total monthly cost of ownership
Cost to Own a Home in Castle Rock, Colorado
A $622,000 home here costs
$4,565per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $195,500 a year.
A standard mortgage calculator would have told you $3,391. The real number is $1,174 higher every month, 35% more than the payment most buyers budget for.
Compare Douglas County with anywhere in America · full county breakdown
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Castle Rock against Douglas County and Colorado
| Measure | Castle Rock | Douglas County |
|---|---|---|
| Median home value | $621,700 | $674,000 |
| Median property tax | $3,493 | $3,707 |
| Effective tax rate | 0.562% | 0.550% |
| Median gross rent | $1,946 | $2,095 |
| Population | 76,614 | 368,283 |
The weather behind that power bill
Castle Rock sits in Douglas County, which averages a high of 85.7°F in its hottest month and a low of 18.0°F in its coldest, with 17.6" of precipitation a year and 40% of it in a single three-month stretch. That climate drives 498 cooling and 6,103 heating degree days, which is what sets the $116 electricity line above.
See the full climate breakdown for Douglas County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Douglas County
Full Douglas County cost breakdown · Every county in Colorado
Talk to someone who works this market
These are Castle Rock averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Castle Rock every week. Free, no obligation, and we never sell your details to a list.
I'm looking to buy in Castle Rock I already own here and may sell
Common questions
How much does it cost to own a home in Castle Rock?
A $622,000 home in Castle Rock, Colorado costs approximately $4,565 per month with 20% down at 7.24%. That is $3,391 principal and interest, $291 property tax, $180 homeowners insurance, $184 utilities and $518 set aside for maintenance.
What is the property tax rate in Castle Rock?
Castle Rock has an effective property tax rate of 0.562%, based on a median home value of $621,700 and median real estate taxes of $3,493. That is higher than the Douglas County average of 0.550%.
What is the average home price in Castle Rock?
The median owner-occupied home value in Castle Rock, Colorado is $621,700, against $674,000 across Douglas County.
Is it cheaper to rent or buy in Castle Rock?
Median gross rent in Castle Rock is $1,946 a month, against $4,565 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
What salary do you need to buy a home in Castle Rock?
Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Castle Rock, Colorado at today's rate takes a household income of roughly $195,500 a year. That covers the full $4,565 monthly cost, not just the mortgage payment.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Castle Rock, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance, NAIC average premium for Colorado.
- Electricity price, EIA Electric Power Monthly Table 5.6.A.
- Mortgage rate, Freddie Mac PMMS, refreshed weekly.
- Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.