Castle Rock, CO Housing Market 2026: What Homes Actually Sell For

Castle Rock closes a lot of homes into a narrow band, which makes its median unusually informative: sales over the last six months land close together, so the citywide number is a real anchor rather than an average of extremes.

The snapshot

• •Closings tracked, last 6 months: 898
• •Median sold price, last 6 months: $647,750
• •Median sold $/sqft, last 6 months: $213
• •Middle half of sales closed between: $549,900 and $790,000

What the numbers say

Resideline tracked 898 closed sales in Castle Rock over the last six months, with a median closing price of $647,750. That median is the midpoint of what buyers actually paid, not what sellers hoped to get, which is why it moves differently from the asking prices you see on listing sites. The middle half of those sales closed between $549,900 and $790,000. That spread matters more than the headline median: where a specific property sits inside it decides whether the citywide number helps you or misleads you. These are the closings Resideline tracks and may differ from complete county or municipal records. 88% of the Castle Rock closings we track here are single-family houses, so these figures primarily reflect that segment, and the citywide $/sqft figure primarily reflects that segment as well. Across the 896 closings with usable living area, the middle half sold between $183 and $269 per square foot.

Figures last updated September 6, 2026 from closings Resideline tracked.

Median home price in Castle Rock, CO (September 2026)

The median home price in Castle Rock is $647,750, measured across the 898 closed sales Resideline tracked over the last six months. The middle half of those sales closed between $549,900 and $790,000.

Where Castle Rock sale prices land

Medians hide the shape of a market. The distribution above covers the closed sales Resideline tracked in Castle Rock over the last six months that carry a usable sale date, trimmed to the 5th through 95th percentile, with the middle half of sales closing between $549,900 and $790,000. Among the 46 Colorado markets with a published band, Castle Rock's middle-half spread ($549,900 to $790,000) ranks 13th from the narrowest. Where your target property sits inside that spread matters more than the citywide median.

How long a sale takes here

• •Listed to under contract: a median of 20 days, across 724 Castle Rock closings Resideline tracked in the last six months
• •Contract to closing: a median of 29 days, across 713 Castle Rock closings Resideline tracked in the last six months

The Castle Rock angle

Across 898 closings Resideline tracked over the last six months, the median closed sale price was $647,750, and the middle half of sales closed between $549,900 and $790,000. What stands out is the shape: the run from the median up to the upper quartile is considerably longer than the run down to the lower quartile, so the market has far more room above its midpoint than below it. For pricing, that means a subject you judge to be above average deserves a wider search of matched closings than one you judge below average, because the plausible range on the upside is simply longer.

From market read to offer price

A tight market makes the next step easier: the citywide anchor sits close to most homes, and a report only has to explain the gap. The decision still comes down to one property and one number: what it is actually worth and what you should pay. Every Resideline report opens with this same market snapshot for the subject's exact ZIP code, then gives you the property's value, the sold comps behind it, and a market rent estimate. Pricing a specific deal? The free ARV calculator and rental property calculator run the numbers in about a minute.

And we show our work. Every estimate is frozen while the home is for sale and graded against the real closing price after it sells. See the live accuracy dashboard for the receipts, or read how the Area Market Snapshot works.

Run any Castle Rock address through Resideline and you will see the local market and the property's value together, in one report.

Cite this

Using these numbers? Please cite the source and the sample size:

Source: Resideline Market Watch
Market: Castle Rock, CO
Geography: incorporated municipality, Census place 0812415
Data updated: September 2026
Analysis period: last six months
Tracked closings: 898
Median sold price: $647,750
Median sold $/sqft: $213 (896 qualifying)
Property mix: 88% houses
https://resideline.com/blog/castle-rock-co-housing-market

Writing about this market? Paste this into your post:

<a href="https://resideline.com/blog/castle-rock-co-housing-market">
  <img src="https://resideline.com/images/embed/castle-rock-co.png" alt="Castle Rock, CO home sale price distribution, last six months" width="1000" style="max-width:100%;height:auto">
</a>
<p>Source: <a href="https://resideline.com/blog/castle-rock-co-housing-market">Resideline Market Watch</a></p>

The local market statistics in this report are calculated from closed sales tracked by Resideline. Transaction coverage may differ from complete county or municipal records.

Every local market figure on this page is computed from closed sales Resideline tracked in Castle Rock over the last six months, and is refreshed when the data is.