Apartments for Rent in Castle Rock, WA

Prices and availability in Castle Rock, WA were last updated on 7 May 2026.

The best apartments in Castle Rock, WA are: 315 3rd Avenue SW and 1604 DELAMETER ROAD.

In Castle Rock, 38% of the residents are renting compared to 62% owning a home, according to data from the U.S. Census Bureau. Large-scale apartment buildings with more than 50 units represent 12% of Castle Rock's rentals, 44% are small-scale complexes with under 50 units, and 44% are single-family rentals.

The average age of rental buildings in Castle Rock is 0 years old, with none being newer apartment buildings completed since 2000. The average height of apartment buildings in the city is 0 stories, of which none are garden-style apartment communities, none are mid-sized buildings, and none are high-rises. These characteristics describe large-scale apartment communities of 50 apartments or more.

Rental apartments in Castle Rock come in a range of sizes and floorplans. Studio apartments represent 0% of units for rent, ideal for singles, renters on a budget and people who value central locations more than space. Rentals with 1-bedroom floorplans make up 0% of the total apartments in the city, while 2-bedroom floorplans represent around 0% of all rentals in Castle Rock. The rest are larger floorplans with 3 bedrooms or more, typically preferred by families, larger households or roommates sharing space.