ZIP Code Market Report
80109 — Castle Rock, CO
Data through February 2026 · Updated monthly
Avg Home Value
$650,079
▼ 2.5% year-over-year
Month-over-Month
-0.3%
▼ 0.3%
Single Family
$657,522
Condo / Co-op
--
The average home value in the 80109 ZIP code (Castle Rock, Colorado) is $650,079 as of February 2026. Home prices are declining, down 2.5% compared to last year.
A 3-bedroom home in 80109 is valued at $577,628.
The market in 80109 has a $290,548 spread between bottom-tier homes at $547,359 and top-tier homes at $837,907. Bottom-tier properties represent the primary opportunity range for real estate investors using the 70% rule, fix-and-flip, or BRRRR strategies.
Looking ahead, Zillow's forecast model projects home values in the 80109 ZIP code will decrease 0.7% over the next 12 months, bringing the projected average to approximately $645,529. This modest projected change should be factored into any investment analysis for properties in this area.
This report is part of the Fremont County market area in Colorado. For a broader view of the housing market including rent data, market activity, and affordability analysis, see the full Fremont County report.
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Market Snapshot
80109 Housing Market at a Glance
Key metrics for the last 3 months with trend direction.
| Metric | Dec 2025 | Jan 2026 | Feb 2026 | 3-Mo Change |
|---|---|---|---|---|
| Avg Home Value | $655,467 | $652,069 | $650,079 | ▼ 0.8% |
| Single Family Value | $658,961 | $658,575 | $657,522 | ▼ 0.2% |
Home Values
80109 Home Value Trend
Historical home values for ZIP code 80109. Switch between All Homes, Single Family, Bottom Tier, and Top Tier.
Source: Zillow Research ZHVI / ZORI · Updated monthly
By Bedroom
What Homes Cost in 80109
Median home values by bedroom count in this ZIP code.
| Bedrooms | Median Value |
|---|---|
| 2 Bedrooms | $558,834 |
| 3 Bedrooms | $577,628 |
| 4 Bedrooms | $685,460 |
Property Types
Home Values by Property Type in 80109
How different property types compare in this ZIP code.
All Homes
$650,079
Single Family
$657,522
Bottom Tier
$547,359
Top Tier
$837,907
Forecast
12-Month Home Value Forecast for 80109
Zillow projects home values in 80109 will decrease 0.7% over the next year, reaching approximately $645,529.
Current Value
$650,079
Projected Change
-0.7%
▼ 0.7%
Projected Value
$645,529
Source: Zillow Home Value Forecast (ZHVF). Forecasts are not guarantees.
Data Sources and Methodology
Home value data for ZIP code 80109 comes from the Zillow Home Value Index (ZHVI), updated monthly. ZHVI measures the typical home value using Zillow's automated valuation model, smoothed and seasonally adjusted.
This report was last updated February 2026. Data is refreshed on the 17th of each month.
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