Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$284,578$276 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

5421 WESTSIDE HWY

CASTLE ROCK, WA 98611
3
Beds
1
Baths
1,032 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1 ac
Lot SizeThe size of the land the home sits on, from county records.
1954
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$285K
$259K low$310K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$31,578
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$25,262
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.87%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$243,000
US BANK NA · recorded Sep 17, 2021
2nd MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$10,000
MORGAN FINANCIAL INC

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,463 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$296,930 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$56,870
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$240,060
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$292,720
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$296,930

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyCowlitz
Lot (acres)The size of the land the home sits on, from county records.1.00
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Electric
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Castle Rock High SchoolD+
High · Grades 9–12 · 0.5 mi
M
Castle Rock Middle SchoolC-
Middle · Grades 6–8 · 1.4 mi
E
Castle Rock Elementary SchoolD+
Elementary · Grades PK–5 · 1.4 mi

District: Castle Rock School District

Neighborhood · ZIP 98611These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.172

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.10,313
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.84 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,330
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$96,543
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.61 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.35%

Ownership

Company ownedWhether the owner is a company or trust rather than a person.No

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

5421 Westside Hwy measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth less than 85% of homes in Castle Rock 98611
  • Smaller than 84% of homes in Castle Rock 98611
  • Has a smaller lot than 81% of homes in Castle Rock 98611
  • Older than 80% of homes in Castle Rock 98611

What homes are worth in Castle Rock 98611

Each bar is how many homes fall in that price range. The marker is this home.

This home
$190K$846K

This home is worth more than 15% of homes in Castle Rock 98611.

How it measures up in Castle Rock 98611

The dot is this home. The mark in the middle is the typical home in Castle Rock 98611.

Estimated value$284,578
CheaperTypical $430,000Pricier

Pricier than 15% of homes nearby

Price per ft²$276
CheaperTypical $268Pricier

Pricier than 55% of homes nearby

Living area1,032 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 16% of homes nearby

Lot size1 ac
SmallerTypical 2.8 acBigger

Bigger than 19% of homes nearby

Year built1954
OlderTypical 1980Newer

Newer than 20% of homes nearby

How 5421 Westside Hwy ranks against every home in each area.
MeasureThis homeCastle Rock 98611Cowlitz County
Estimated valuepricier than$284,57815% of homes22% of homes
Price per ft²pricier than$27655% of homes61% of homes
Living areabigger than1,032 ft²16% of homes19% of homes
Lot sizebigger than1 ac19% of homes45% of homes
Year builtnewer than195420% of homes30% of homes

About 5421 Westside Hwy

How much is 5421 Westside Hwy, Castle Rock, WA worth?

The TopHap Estimate for 5421 Westside Hwy, Castle Rock, WA is $284,578 as of Jul 14, 2026. The likely range is $258,781 to $310,375. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 5421 Westside Hwy, Castle Rock, WA?

5421 Westside Hwy, Castle Rock, WA has 3 bedrooms, 1 bathrooms, 1,032 square feet of living space and a 1.00-acre lot.

When was 5421 Westside Hwy, Castle Rock, WA built?

5421 Westside Hwy, Castle Rock, WA was built in 1954, making it 72 years old. The building has 1 story.

What schools serve 5421 Westside Hwy, Castle Rock, WA?

5421 Westside Hwy, Castle Rock, WA is assigned to Castle Rock High School (high), rated D+; Castle Rock Middle School (middle), rated C-; Castle Rock Elementary School (elementary), rated D+. All sit in Castle Rock School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 5421 Westside Hwy, Castle Rock, WA compare to other homes in Castle Rock 98611?

Among the 4,446 homes in Castle Rock 98611, it is worth more than 15% of them ($284,578 against a typical $430,000), its price per square foot is higher than 55% of them ($276 against a typical $268), it is bigger than 16% of them (1,032 ft² against a typical 1,568 ft²), its lot is bigger than 19% of them (1 ac against a typical 2.8 ac) and it is newer than 20% of them (1954 against a typical 1980). Measured against all of Cowlitz County, it is worth more than 22% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 5421 Westside Hwy, Castle Rock, WA?

The 2025 property tax bill for 5421 Westside Hwy, Castle Rock, WA was $2,463. The county assessed it at $296,930.

Closest homes

More homes in Castle Rock 98611

Assigned schools

Explore the area

See this home in context

Open 5421 Westside Hwy on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map