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Single Family ResidenceResidential
$380,798$130 / 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 Oct 21, 2026
Last sold for $70,000 on Oct 16, 2013

20638 GRAND MOUND WAY SW

CENTRALIA, WA 98531
3
Beds
1.5
Baths
2,931 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1901
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$381K
$345K low$416K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$70,000 · Oct 16, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,626 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$415,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$103,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$312,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$424,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$415,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyTHURSTON
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1964
Lot (acres)The size of the land the home sits on, from county records.0.24
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Space
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 256 ft²Porch · 153 ft²

Transaction History(2)

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.

E
Rochester Primary School
Elementary · Grades PK–2 · 1.4 mi
H
Rochester High SchoolC+
High · Grades 9–12 · 1.6 mi
M
Rochester Middle SchoolC+
Middle · Grades 6–8 · 4.3 mi

District: Rochester School District

Neighborhood · ZIP 98531These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.197

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.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.30,550
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.222 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$65,984
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,677
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.51 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.35%

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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

20638 Grand Mound Way Sw 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 91% of homes in Thurston County
  • Among the lowest price per square foot in Centralia 98531
  • Bigger than 95% of homes in Centralia 98531
  • Among the oldest homes in Thurston County

What homes are worth in Centralia 98531

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

This home
$186K$797K

This home is worth more than 50% of homes in Centralia 98531.

How it measures up in Centralia 98531

The dot is this home. The mark in the middle is the typical home in Centralia 98531.

Estimated value$380,798
CheaperTypical $379,000Pricier

Pricier than 50% of homes nearby

Price per ft²$130
CheaperTypical $263Pricier

Cheaper than almost all homes nearby

Living area2,931 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.24 ac
SmallerTypical 0.24 acBigger

Bigger than 48% of homes nearby

Year built1901
OlderTypical 1969Newer

Newer than 3% of homes nearby

How 20638 Grand Mound Way Sw ranks against every home in each area.
MeasureThis homeCentralia 98531Thurston County
Estimated valuepricier than$380,79850% of homes9% of homes
Price per ft²pricier than$130almost no homesalmost no homes
Living areabigger than2,931 ft²95% of homes91% of homes
Lot sizebigger than0.24 ac48% of homes45% of homes
Year builtnewer than19013% of homesalmost no homes

About 20638 Grand Mound Way Sw

How much is 20638 Grand Mound Way Sw, Centralia, WA worth?

The TopHap Estimate for 20638 Grand Mound Way Sw, Centralia, WA is $380,798 as of Oct 21, 2026. The likely range is $345,347 to $416,249. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20638 Grand Mound Way Sw, Centralia, WA last sell?

20638 Grand Mound Way Sw, Centralia, WA last sold on Oct 16, 2013 for $70,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 20638 Grand Mound Way Sw, Centralia, WA?

20638 Grand Mound Way Sw, Centralia, WA has 3 bedrooms, 1.5 bathrooms, 2,931 square feet of living space and a 0.24-acre lot.

When was 20638 Grand Mound Way Sw, Centralia, WA built?

20638 Grand Mound Way Sw, Centralia, WA was built in 1901, making it 125 years old. It is a ranch home. The building has 1 story.

What schools serve 20638 Grand Mound Way Sw, Centralia, WA?

20638 Grand Mound Way Sw, Centralia, WA is assigned to Rochester Primary School (elementary); Rochester High School (high), rated C+; Rochester Middle School (middle), rated C+. All sit in Rochester School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 20638 Grand Mound Way Sw, Centralia, WA compare to other homes in Centralia 98531?

Among the 8,634 homes in Centralia 98531, it is worth more than 50% of them ($380,798 against a typical $379,000), its price per square foot is higher than almost none of them ($130 against a typical $263), it is bigger than 95% of them (2,931 ft² against a typical 1,440 ft²), its lot is bigger than 48% of them (0.24 ac against a typical 0.24 ac) and it is newer than 3% of them (1901 against a typical 1969). Measured against all of Thurston County, it is worth more than 9% 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 20638 Grand Mound Way Sw, Centralia, WA?

The 2026 property tax bill for 20638 Grand Mound Way Sw, Centralia, WA was $3,626. The county assessed it at $415,800.

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