Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$336,578$374 / 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 98How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $127,000 on Nov 21, 2014

100 MILL ST

GASTON, OR 97119
2
Beds
1
Baths
900 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$337K
$329K low$344K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$127,000 · Nov 21, 2014

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,014 (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.$106,250 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$103,160
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$296,500

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.58
84
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
32
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
38
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
98
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
38
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.91 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWASHINGTON
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.1960
Lot (acres)The size of the land the home sits on, from county records.0.11
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.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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.Porch · 210 ft²

Transaction History(1)

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.

M
Gaston Jr./Sr. High SchoolC-
Middle · Grades 7–12 · 0.3 mi
E
Gaston Elementary SchoolA
Elementary · Grades PK–6 · 0.3 mi

District: Gaston School District 511j

Neighborhood · ZIP 97119These 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.137
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.111
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.190

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
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.4,391
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.35 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$110,165
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$129,477
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.69 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.48%

Owner Tools

Do you own this home?
Claim this home

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

100 Mill St 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 94% of homes in Washington County
  • Costs more per square foot than 86% of homes in Washington County
  • Smaller than 96% of homes in Washington County
  • Has a smaller lot than 98% of homes in Gaston / Cherry Grove / Laurelwood
  • Among the oldest homes in Washington County

What homes are worth in Gaston 97119

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

This home
$260K$1.1M

This home is worth more than 10% of homes in Gaston 97119.

How it measures up in Gaston 97119

The dot is this home. The mark in the middle is the typical home in Gaston 97119.

Estimated value$336,578
CheaperTypical $515,631Pricier

Pricier than 10% of homes nearby

Price per ft²$374
CheaperTypical $302Pricier

Pricier than 82% of homes nearby

Living area900 ft²
SmallerTypical 1,709 ft²Bigger

Bigger than 7% of homes nearby

Lot size0.11 ac
SmallerTypical 2.32 acBigger

Bigger than 2% of homes nearby

Year built1920
OlderTypical 1979Newer

Newer than 9% of homes nearby

How 100 Mill St ranks against every home in each area.
MeasureThis homeGaston / Cherry Grove / LaurelwoodGaston 97119Washington County
Estimated valuepricier than$336,57811% of homes10% of homes6% of homes
Price per ft²pricier than$37482% of homes82% of homes86% of homes
Living areabigger than900 ft²7% of homes7% of homes4% of homes
Lot sizebigger than0.11 ac2% of homes2% of homes29% of homes
Year builtnewer than192012% of homes9% of homesalmost no homes

About 100 Mill St

How much is 100 Mill St, Gaston, OR worth?

The TopHap Estimate for 100 Mill St, Gaston, OR is $336,578 as of Aug 30, 2026. The likely range is $328,821 to $344,335. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100 Mill St, Gaston, OR last sell?

100 Mill St, Gaston, OR last sold on Nov 21, 2014 for $127,000, according to the county's recorded deed.

How big is 100 Mill St, Gaston, OR?

100 Mill St, Gaston, OR has 2 bedrooms, 1 bathrooms, 900 square feet of living space and a 0.11-acre lot.

When was 100 Mill St, Gaston, OR built?

100 Mill St, Gaston, OR was built in 1920, making it 106 years old.

What schools serve 100 Mill St, Gaston, OR?

100 Mill St, Gaston, OR is assigned to Gaston Jr./Sr. High School (middle), rated C-; Gaston Elementary School (elementary), rated A. All sit in Gaston School District 511j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100 Mill St, Gaston, OR compare to other homes in Gaston 97119?

Among the 1,412 homes in Gaston 97119, it is worth more than 10% of them ($336,578 against a typical $515,631), its price per square foot is higher than 82% of them ($374 against a typical $302), it is bigger than 7% of them (900 ft² against a typical 1,709 ft²), its lot is bigger than 2% of them (0.11 ac against a typical 2.32 ac) and it is newer than 9% of them (1920 against a typical 1979). Measured against all of Washington County, it is worth more than 6% 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 100 Mill St, Gaston, OR?

The 2025 property tax bill for 100 Mill St, Gaston, OR was $2,014. The county assessed it at $106,250.

Closest homes

More homes in Gaston 97119

Assigned schools

Explore the area

See this home in context

Open 100 Mill St 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