Castle Rock, CO

Castle Rock's town FAQ says the combined sales tax rate is 8.1%, made up of 2.9% Colorado state tax, 1.0% Douglas County tax, and 4.2% town tax (Town of Castle Rock^[1]). The town also says property taxes are collected mostly by other taxing entities, not the town itself, and that a median-valued home in town brought the town about $37.50 in 2024 (Town of Castle Rock^[2]). For broader living-cost context, Castle Rock sits in the Denver-Aurora-Centennial metro area, so BLS and BEA figures should be interpreted at the metro level rather than as city-specific series.

Castle Rock has AdventHealth Castle Rock, an acute-care hospital in town with a 24/7 emergency department and CMS-certified Medicare presence (Black Health profile^[3]). The same profile says CMS Hospital Compare rates it 4 of 5 stars, which is a solid local signal for routine inpatient and emergency use (Black Health profile^[3]). Medicare's Care Compare tool is the official way to compare nearby providers, and for major subspecialties many residents will still head into the Denver metro medical corridor (Medicare.gov^[4]).

Public climate summaries for Castle Rock show annual precipitation around 18.8 inches and annual snowfall around 62 inches (Climate-Charts^[5]). Average monthly highs run from about 45 to 46 F in midwinter to about 85 to 86 F in July, while average monthly lows drop to about 17 to 19 F in winter (Climate-Charts^[5]). The same source indicates an annual low temperature near 35 F and an annual high near 63 F, which supports a comfortable outdoor season that is strongest from late spring through early fall (Climate-Charts^[5]).

The available FBI Crime Data Explorer-based summary for Castle Rock shows a five-year violent crime rate of 21.6 per 100,000 residents, about 79.7% below the national average, and a property crime rate of 111.3 per 100,000, about 32.0% below the national average (Crime Explorer^[6]). That same source shows 1,445 violent crimes and 5,308 property crimes across 2019 to 2024, but it does not provide a clean city-by-year trend table in the excerpted page text (Crime Explorer^[6]). Because the FBI reporting is incomplete after 2021 for many agencies, the best practice is to treat this as a directional signal rather than a perfect longitudinal series (USAGov^[7]).

Castle Rock’s broader housing market shows a median listing price of $725K and average days on market of 40 days in the latest market snapshot (Realtor.com^[8]). Zillow’s Castle Rock page puts the median list price higher at $718,317 and says homes go to pending in around 31 days, with the average home value down 1.6% over the past year (Zillow^[9]). For a retiree targeting the upper end of the market, ZIP 80108 is the better fit, with a median listing price of $1,075,000 and median days on market of 36 days, and it includes neighborhoods such as Horse Creek and North Castle Rock (Realtor.com^[10]). Castle Rock also has at least one active-adult option, including The Meadowmark, described as a 55+ active adult living community in Castle Rock (The Meadowmark^[11]).

The nearest major commercial airport for Castle Rock is typically Denver International Airport, with Castle Rock residents commonly using the Denver metro air system for hub travel; the weather reference page notes Centennial Airport is only 13 to 14 miles away from the climate station used for Castle Rock, but that airport is not the main commercial hub (timeanddate climate page^[12]). Castle Rock's position on the south side of the metro makes DIA the better fit for routine commercial service and long-haul connections, especially for Midwest and East Coast hub travel. The travel takeaway is that the area is airport-convenient for a suburban market, even if the most local field is a general-aviation alternative rather than the primary airline gateway (timeanddate climate page^[12]).

GolfLink lists 4 courses in Castle Rock itself, including 2 public, 1 municipal, and 1 private, and another 46 courses within 20 miles, which is a strong concentration for a retiree who wants regular play (GolfLink^[13]). Among the local options, Castle Pines Golf Club is private with an estimated green fee of $285 for 18 holes, while Plum Creek Golf Club is public and Red Hawk Ridge Golf Course is public and only about 1 mile from the town center (GolfLink^[13]). For broader recreation, the area also offers Front Range hiking, reservoir access, and easy mountain day trips, so golf can be paired with year-round outdoor activity.

The Census QuickFacts page for Castle Rock town reports a population of 73,158 in the 2020 Census (Census QuickFacts^[14]). A county- and place-level demographic summary shows a 2020 population of 73,158, a median age of 36.5, and 65+ residents at 7,908 in the 2020 breakdown, which means the town is much younger than a classic retiree-only enclave (CityPopulation^[15]). The community feel is suburban and amenity-rich, with newer neighborhoods, shopping, and golf-oriented residential pockets rather than a historic walkable downtown retirement core.

FEMA's National Risk Index is published at the county level, so Castle Rock should be evaluated through Douglas County rather than as a stand-alone city measure; that county sits in the Denver metro southwest risk environment and is commonly affected by wildfire and severe weather exposure patterns on the Front Range. NOAA climate normals and local climate summaries point to a dry, sunny setting with low annual precipitation, which generally supports wildfire sensitivity during hot, dry periods (NOAA NCEI^[16], Climate-Charts^[5]). EPA and AirNow guidance should be used for day-to-day AQI monitoring, especially during wildfire-smoke episodes, but a city-specific annual good-air-days figure was not available in the retrieved sources here.