Real Estate Data API

80109 Castle Rock

252 active listings out of 9.7K total properties we track in ZIP 80109 (Castle Rock, CO) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
252
Median
$695K
-3.8%
Sold Sep
36
+5.9%
Tracked
9.7K
Zoomed out

While you're here, take in the bigger picture — maps below show Colorado (statewide), not just 80109. Same company, same dataset, different resolution.

Get this data →
Key Numbers
Tracked
9.7K
Active
252
Median list
$695K
Sales (12mo)
430
Get this data →
Key Numbers
Tracked
9.7K
Active
252
Median list
$695K
Sales (12mo)
430
Get this data →
Key Numbers
Tracked
9.7K
Active
252
Median list
$695K
Sales (12mo)
430
Get this data →
Key Numbers
Tracked
9.7K
Active
252
Median list
$695K
Sales (12mo)
430
Get this data →
Key Numbers
Tracked
9.7K
Active
252
Median list
$695K
Sales (12mo)
430

Inventory breakdown

Distribution of the 252 currently-active listings in ZIP 80109. Full dataset covers 9.7K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 3 (1.3%)
$300K–$500K 21 (8.8%)
$500K–$750K 117 (49%)
$750K–$1M 54 (22.6%)
$1M–$2M 37 (15.5%)
$2M+ 7 (2.9%)
Active by bedroom count
Studio/1 bd 0
2 bd 19
3 bd 82
4 bd 63
5+ bd 88
Active by property type
Single Family 230 (91.3%)
Townhouse 20 (7.9%)
Manufactured 2 (0.8%)
For Developers

Get Castle Rock 80109 data in your app

curl
request 
GET https://api.straply.com/v1/markets/zip/80109
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "zip": "80109",
  "total_tracked": 9677,
  "active": 252,
  "median_list": 695000
}
Get an API key Read the docs

Nearby ZIP codes

Other Colorado ZIPs within a short drive of 80109.

80108
→
Castle Rock 80108
3.9 mi away 436 active
80104
→
Castle Rock 80104
4.2 mi away 666 active
80131
→
Louviers 80131
8 mi away 4 active
80135
→
Sedalia 80135
8.3 mi away 126 active
80134
→
Parker 80134
9.8 mi away 1.3K active
80124
→
Lone Tree 80124
10.1 mi away 171 active
80130
→
Highlands Ranch 80130
10.2 mi away 161 active
80116
→
Franktown 80116
10.5 mi away 139 active
Looking for more? Explore Castle Rock

ZIP 80109 · Castle Rock, CO real estate: market summary

As of November 2026, Straply tracks 9,677 homes in ZIP 80109 (Castle Rock, CO), with 252 active for sale at a median list price of $695,000 (~$217/sq ft). Notably, it skews heavily toward new construction — 98% of homes were built after 1980, and 860 since 2020.

Median list price
$695,000
Median $/sq ft
$217
Active listings
252
Median sale price
$667,500 (-4% YoY)
Properties tracked
9,677

Frequently asked: ZIP 80109 · Castle Rock, CO real estate

What is the median home price in ZIP 80109?

The median list price in ZIP 80109 (Castle Rock, CO) is $695,000 (about $217 per square foot), based on 252 active listings tracked by Straply as of November 2026.

What price range are homes in ZIP 80109?

Active listings in ZIP 80109 (Castle Rock, CO) concentrate in: 49% $500k–$750k and 23% $750k–$1m.

Are home prices in ZIP 80109 going up or down?

The median sale price is $667,500, down 4% year over year. Straply tracked 430 sales here over the past 12 months.

How many homes are for sale in ZIP 80109?

Straply is tracking 252 active listings in ZIP 80109 (Castle Rock, CO) out of 9,677 properties on record as of November 2026.

How old are the homes in ZIP 80109?

Most homes in ZIP 80109 (Castle Rock, CO) were built in the 2000s. About 98% were built after 1980. The newest tracked home dates to 2026.

What types of homes are in ZIP 80109?

ZIP 80109 (Castle Rock, CO) is mostly single-family homes (91% of listings). Also common: townhouses 8%.

How many bedrooms do homes in ZIP 80109 typically have?

The most common size in ZIP 80109 (Castle Rock, CO) is 5+ bd.

What areas are near ZIP 80109?

Nearby markets Straply also tracks include Castle Rock 80108, Castle Rock 80104, Louviers 80131, Sedalia 80135.

Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.