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2025 Compare Cities Housing:
Castle Rock, WA vs Mercer Island, WA

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Highlights
- The median age of a home in Castle Rock is 5.9% older than the median age of a home in Mercer Island.
 Castle Rock, WAMercer Island, WAUnited States
 Median Home Age51  Unlock42
 Median Home Cost  Unlock$2,145,300$338,100
 Home Appr. Last 12 months13.7%  Unlock16.6%
 Home Appr. Last 5 yrs.  Unlock61.9%57.0%
 Home Appr. Last 10 yrs.161.0%  Unlock101.1%
 Property Tax Rate  Unlock$9.0$11.0
 Homes Owned61.4%  Unlock57.4%
 Housing Vacant  Unlock7.6%11.2%
 Homes Rented35.7%  Unlock31.4%
 space
 Avg Rent For Home Or Apartment
 Castle Rock, WAMercer Island, WAUnited States
 Average Rent  Unlock$3,740$1,840
 Studio Apartment$830  Unlock$1,080
 1 Bedroom Home or Apartment  Unlock$2,410$1,180
 2 Bedroom Home or Apartment$1,240  Unlock$1,430
 3 Bedroom Home or Apartment  Unlock$3,790$1,860
 4 Bedroom Home or Apartment$2,110  Unlock$2,160
 space1
 Vacant Housing
 Castle Rock, WAMercer Island, WAUnited States
 Vacant For Rent  Unlock2.5%1.9%
 Vacant Rented0.0%  Unlock0.4%
 Vacant For Sale  Unlock0.3%0.7%
 Vacant Sold1.5%  Unlock0.4%
 Vacant Vacation  Unlock0.9%3.6%
 Vacant Other1.4%  Unlock4.1%
 space2
 Owner-Occupied Housing Value
 Castle Rock, WAMercer Island, WAUnited States
 Less Than $20,000  Unlock0.8%2.6%
 $20,000 to $39,9990.8%  Unlock2.4%
 $40,000 to $59,999  Unlock0.0%2.8%
 $60,000 to $79,9990.0%  Unlock3.9%
 $80,000 to $99,999  Unlock0.0%4.5%
 $100,000 to $149,99910.0%  Unlock11.3%
 $150,000 to $199,999  Unlock0.1%13.0%
 $200,000 to $299,99953.5%  Unlock20.1%
 $300,000 to $399,999  Unlock1.5%13.6%
 $400,000 to $499,9991.8%  Unlock8.3%
 $500,000 to $749,999  Unlock4.7%9.7%
 $750,000 to $999,9990.2%  Unlock3.9%
 $1,000,000 to $1,499,999  Unlock28.6%2.2%
 $1,500,000 to $1,999,9990.0%  Unlock0.8%
 $2,000,000 and over  Unlock28.2%1.1%
 space3
 Housing Units By Year Built
 Castle Rock, WAMercer Island, WAUnited States
 2015 and Newer0.0%  Unlock0.2%
 2010 to 2014  Unlock12.6%13.6%
 2000 to 20091.1%  Unlock13.6%
 1990 to 1999  Unlock8.2%13.6%
 1980 to 19894.6%  Unlock13.2%
 1970 to 1979  Unlock18.4%14.8%
 1960 to 196916.1%  Unlock13.6%
 1950 to 1959  Unlock13.0%10.0%
 1940 to 194912.9%  Unlock4.7%
 1939 or Earlier  Unlock3.9%12.2%
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Reviews for Castle Rock    1 Reviews
Ronald  · Castle Rock, WA
Education
Over 14 years ago

As a whole I rate the education system as a negative. Alot of the teachers do not notify you of your childs progress especiallt if they are behind. We found out how  More

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Reviews for Mercer Island    4 Reviews
Megan · Mercer Island, WA
Nice place to live with great schools
Over 17 years ago

Mercer Island is a wonderful family community. It feels much more "small town" than a city even though it has a population of 20,000+. People say hello and watch out  More

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A resident · Mercer Island, WA
Mercer Island - Is there a "there" there?
Over 17 years ago

Mercer Island is a suburb of Seattle, located on an island in Lake Washington. The best thing about Mercer Island is its strategically central location relative to the  More

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A resident · Mercer Island, WA
Mercer Island, WA - a suburb on an island
Over 17 years ago

Mercer Island is a suburb of Seattle, located on an island in Lake Washington. The best thing about Mercer Island is its strategically central location relative to the  More

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Learn More About Castle Rock, Washington
Overview
Cost of Living
Job Market
Crime
Climate
Economy
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Learn More About Mercer Island, Washington
Overview
Cost of Living
Job Market
Crime
Climate
Economy
Religion
Voting
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