Castle Rock, WA housing market
The typical Castle Rock home is worth about $479,000, up 1.1% in a year, 19% below the Washington typical home.
Home values, sales, trends and how Castle Rock compares with the towns next door — updated as new data is published.
Castle Rock at a glance
Only 2 sales in May 2026: in a market this size, monthly medians swing a lot, so the typical value above is the steadier guide.
Typical home value, 2016–2026
Show as a table
| January | Castle Rock | Washington |
|---|---|---|
| 2017 | $236,000 | $326,000 |
| 2018 | $264,000 | $362,000 |
| 2019 | $287,000 | $390,000 |
| 2020 | $315,000 | $413,000 |
| 2021 | $373,000 | $471,000 |
| 2022 | $425,000 | $554,000 |
| 2023 | $451,000 | $572,000 |
| 2024 | $464,000 | $582,000 |
| 2025 | $481,000 | $605,000 |
| 2026 | $482,000 | $601,000 |
| August 2026 | $479,000 | $592,000 |
1 new home permitted in 2025
Builders were permitted 1 new home in Castle Rock in 2025. That's 0.5 per 1,000 residents, slower than across Washington (4.6). Over the past 10 years, Castle Rock has permitted 27 homes in all.
Homes vs. people, 2010–2020
Between the 2010 and 2020 censuses, Castle Rock gained 464 residents while 50 new homes were permitted: about 9.3 new residents per new home. Population grew faster than building, so existing homes filled up: a sign of tight supply. Across Washington: 2.7 new residents per new home.
Residents: U.S. Census Bureau, 2010 and 2020 censuses. New homes: permits issued 2010–2019.
Show as a table
| Year | New homes | Single-family | 2+ per building | Value |
|---|---|---|---|---|
| 2026 (Jan–Aug) | 3 | 3 | 0 | $570,000 |
| 2025 | 1 | 1 | 0 | $350,000 |
| 2024 | 2 | 2 | 0 | $634,000 |
| 2023 | 5 | 1 | 4 | $795,000 |
| 2022 | 4 | 4 | 0 | $785,000 |
| 2021 | 2 | 2 | 0 | $645,000 |
| 2020 | 0 | 0 | 0 | — |
| 2019 | 3 | 3 | 0 | $739,000 |
| 2018 | 6 | 6 | 0 | $1.4 million |
| 2017 | 4 | 4 | 0 | $777,000 |
| 2016 | 0 | 0 | 0 | — |
| 2015 | 2 | 2 | 0 | $309,000 |
| 2014 | 11 | 5 | 6 | $1.1 million |
| 2013 | 5 | 5 | 0 | $738,000 |
| 2012 | 10 | 10 | 0 | $1.4 million |
| 2011 | 0 | 0 | 0 | — |
| 2010 | 9 | 9 | 0 | $1.2 million |
| 2009 | 8 | 8 | 0 | $1.2 million |
| 2008 | 3 | 3 | 0 | $324,000 |
| 2007 | 7 | 7 | 0 | $1.1 million |
| 2006 | 4 | 1 | 3 | $270,000 |
| 2005 | 5 | 1 | 4 | $320,000 |
| 2004 | 1 | 1 | 0 | $192,000 |
| 2003 | 1 | 1 | 0 | $89,000 |
| 2002 | 1 | 1 | 0 | $89,000 |
| 2001 | 0 | 0 | 0 | — |
| 2000 | 0 | 0 | 0 | — |
Homes authorized by building permits, counted in the year the permit was issued. U.S. Census Bureau, Building Permits Survey, through August 2026.
6.9 years of income
The typical Castle Rock home costs about 6.9 years of the town's median household income, more than across Washington (6 years).
Home value ÷ ACS median household income.
Owners, rent & taxes
U.S. Census Bureau, ACS 2020-2024.
A two-bedroom rents for about $1,670
HUD's Fair Market Rent for a two-bedroom in Castle Rock is $1,670 a month, utilities included: roughly what a modest, recently rented unit costs. Renters already in Castle Rock pay a median of $1,222, so moving in tends to cost more than staying put. A two-bedroom takes about 29% of the town's median household income.
Studio $1,150 · 4 bedrooms $2,800
U.S. Department of Housing and Urban Development, FY2026 Fair Market Rents by ZIP code (98611; Longview-Kelso, WA MSA), weighted by land area. A Fair Market Rent is the 40th-percentile rent plus utilities for a standard unit. Median rent: U.S. Census Bureau, American Community Survey.
Recent listings in Castle Rock
Home values: Zillow Home Value Index (ZHVI), Zillow Research, August 2026. Sales, days on market and supply: Redfin Data Center, May 2026. Income, ownership, taxes and rent: U.S. Census Bureau, American Community Survey. New homes: U.S. Census Bureau, Building Permits Survey. Fair Market Rents: U.S. Department of Housing and Urban Development. Listings link to their publishers.