Castle Rock, WA—98611
Real Estate Data & Market Trends
Key Metrics at a Glance
Home Price Trends — Castle Rock, WA
As of Oct '25, the median home price in Castle Rock, WA is $477,000, with a year-over-year change of -0.5%. This indicates that home prices in Castle Rock, WA are flat. According to Zillow, the 1-year price projection is 0.7%, suggesting a relatively flat housing market in the next year.
Cost per Home Type
| Home Type | Median Home Value | YoY % Change |
|---|---|---|
All Homes | $477,000 | -0.5% |
| Single Family | $477,000 | -0.4% |
| Condos | N/A | N/A |
Cost per Home Size
| Home Size | Median Home Value | YoY % Change |
|---|---|---|
1 Bed | N/A | N/A |
2 Bed | $373,000 | -1.3% |
3 Bed | $496,000 | -0.4% |
4 Bed | $547,000 | 0.7% |
| 5 Bed | $589,000 | 0.7% |
% of Housing Stock
Rental Trends — Castle Rock, WA
As of July '25, Rentcast reports the average rent in Castle Rock, WA is $1,770, with a year-over-year rent change of 4.1%. Per bedroom, the median rent as of July '25 in Castle Rock, WA is 1-bedrooms: $1,010, 2-bedrooms: $1,780, 3-bedrooms: $3,300. The most common rental property sizes in Castle Rock, WA are 2-bedroom and 3-bedroom, accounting for 53.7% and 27.6% of the rental stock.
| Type | Median Rent | Average Rent |
|---|---|---|
| Average Rent | $1,750 | $1,770 |
| Studio Rent | N/A | N/A |
| 1 Bed Rent | $925 | $1,010 |
| 2 Bed Rent | $1,750 | $1,780 |
| 3 Bed Rent | $3,300 | $3,300 |
| 4 Bed Rent | N/A | N/A |
% of Rental Stock
Property Listings — Castle Rock, WA
As of Oct '25, Realtor.com reports that the median days on market for a home in Castle Rock, WA is 92. This is a decrease of -6.0% from last year, suggesting that homes are sitting on the market shorter than last year. The percentage of listed homes with a reduced price is 53.0%, representing a large inventory and a lot of supply pressure on home prices.
| Metric | Zip Code Average | Year over Year % Change |
|---|---|---|
Median Listing Price | $540,000 | -13.0% |
Listing Count | 38 | -4.0% |
| Listings as % of Homes | 0.9% | -4.0% |
Days on Market | 92 | -6.0% |
Demographics — Castle Rock, WA
As of the latest ACS Survey released in 2023, Castle Rock, WA has a population of 9,370, which has remained stable by 0.0% over the past 5 years. Castle Rock, WA is a moderately popular place for families, as children make up 22.8% of the population. The area has a poorly educated workforce, with 13.7% of adult residents holding a bachelor’s degree or higher. There are few residents working remotely, with 7.0% reporting working from home.
| Metric | Latest Census | YoY % Change |
|---|---|---|
Population | 9,370 | 0.0% |
% Under 18 | 22.8% | 2.2% |
% Seniors | 24.0% | 8.1% |
% WFH | 7.0% | 20.7% |
% w/ College Degree | 13.7% | -20.8% |
As of the latest ACS Survey released in 2023, Castle Rock, WA is a predominantly white area, with 86.6% of the population identifying as white. The white population has shrunk by 4.9% in the last 5 years. The second most common race or ethnicity in Castle Rock, WA is hispanic, making up 2.8% of the population. Foreign-born residents account for 1.4% of the population in Castle Rock, WA, and this percentage has increased by 27.3% as of the ACS Survey 5 years prior, suggesting more immigrants are calling the area home.
Race and Ethnicity
| Metric | Latest Census | 5-Year % Change |
|---|---|---|
% White | 86.6% | -4.9% |
% Black | 0.2% | 0.0% |
% Hispanic | 2.8% | -3.4% |
% Asian | 0.6% | -25.0% |
% Foreign Born | 1.4% | 27.3% |
Mortgage and Risk — Castle Rock, WA
According to HUD data as of 2023, there were 278 mortgage originations in Castle Rock, WA, of which 77.0% of loans were conventional mortgages. The average loan-to-value was 54.0%, with 23.0% above 90% LTV (very high). This implies large mortgage risk in Castle Rock, WA. Investor activity is low, as 1.0% of loans were by investors. 9.0% of loans were cash-out refinances, suggesting few homeowners are tapping equity.
Mortgages
| Metric | Zip Code Average |
|---|---|
Total Loan Originations | 278 |
% Conventional Loans | 77.0% |
% Government Loans | 23.0% |
% Investor Loans | 1.0% |
% Second Loans | 1.0% |
% Cash Out Refinance | 9.0% |
Loan Activity
Rentals and Section 8 — Castle Rock, WA
Castle Rock, WA lacks sufficient Section 8 program data for analysis.
Section 8 Market Size
Total Units under HUD | 30 |
Total Units Section 8 | 30 |
% Rentals under Section 8 | 4.4% |
% Occupied Section 8 | 86.0% |
Section 8 Opportunity
| Home Size | HUD Premium | Market Rent | Max HUD Rent |
|---|---|---|---|
| 1 Bedroom | $455 | $925 | $1,380 |
| 2 Bedroom | -$120 | $1,750 | $1,630 |
| 3 Bedroom | -$1,020 | $3,300 | $2,280 |
| 4 Bedroom | N/A | N/A | $2,740 |
Affordability — Castle Rock, WA
Home Price to Income Ratio
| Metric | Zip Code Average |
|---|---|
| Home Price to Income Ratio | 5.5 |
| Median Home Price | $477,000 |
| Median Household Income | $81,600 |