Can You Afford a Home in Castle Rock, WA?
A typical home in Castle Rock is worth $487,751, up 1.1% over the past year. That is $63K above the Cowlitz County typical of $424,669.
Assumes housing costs stay at 33% of gross income — the sustainable middle, not the maximum a lender would approve. A typical home in Castle Rock costs $487,751. Rates as of 5 September 2026; they move weekly and your quote will differ.
What each income level buys in Cowlitz County
Prices below are what keeps housing at 33% of gross income, using Cowlitz County’s 0.82% effective property tax rate. The Conventional column assumes 20% down; the zero-down columns finance the funding fee into the loan.
| Household income | Conventional | VA | Zero-down CU | FHA |
|---|---|---|---|---|
| $75,000 | $319,000 | $263,000 | $242,000 | $257,000 |
| $100,000 | $436,000 | $361,000 | $331,000 | $352,000 |
| $125,000 | $554,000 | $458,000 | $420,000 | $447,000 |
| $150,000 | $671,000 | $555,000 | $509,000 | $542,000 |
| $200,000 | $907,000 | $749,000 | $687,000 | $733,000 |
How Castle Rock compares to nearby towns
| Town | Typical home | Year over year | Income needed |
|---|---|---|---|
| Kelso | $392,154 | 0% | $91,000 |
| Longview | $392,665 | 0% | $91,000 |
| Castle Rock (this page) | $487,751 | +1.1% | $111,000 |
| Silverlake | $492,082 | +0.3% | $112,000 |
| Toutle | $516,880 | +2.8% | $117,000 |
| Kalama | $546,345 | -0.2% | $123,000 |
| Ariel | $573,924 | +4.6% | $129,000 |
If Castle Rock is out of reach, Kelso, Longview sit lower in the same county — same commute shed, same schools district-by-district, less money.
What this does not tell you
These are typical values, not listings. Half the homes in Castle Rock sell for less than $487,751, and condos and townhomes sit well below it. Property tax is a county-wide effective rate, so your parcel will differ. Insurance is a state average. Run your own numbers with your own quote before you take any of this as settled.