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Single Family ResidenceResidential
$355,378$220 / 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 95How 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 $200,000 on Apr 21, 2017

607 GUERNSEY ST

PROSSER, WA 99350
2
Beds
1
Baths
1,616 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.
0.13 ac
Lot SizeThe size of the land the home sits on, from county records.
1927
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$355K
$339K low$372K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$200,000 · Apr 21, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,121 (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.$304,450 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$80,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$224,450
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$293,760
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$304,450

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.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
78
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
39
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
7
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
35
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyBenton
Lot (acres)The size of the land the home sits on, from county records.0.13
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Carport (Unspecified)
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Shed · 144 ft²Patio · 144 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.

H
Prosser High SchoolB-
High · Grades 9–12 · 0.1 mi
E
Keene-Riverview Elementary
Elementary · Grades PK–2 · 0.3 mi
M
Housel Middle SchoolC+
Middle · Grades 6–8 · 0.9 mi

District: Prosser School District

Neighborhood · ZIP 99350These 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.87
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.118
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.118

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.10%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.15,573
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.21 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,054
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,452
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.10 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.51%

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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

607 Guernsey 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 74% of homes in Benton County
  • Costs less per square foot than 75% of homes in Benton County
  • Has a smaller lot than 96% of homes in Prosser 99350
  • Among the oldest homes in Benton County

What homes are worth in Prosser 99350

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

This home
$200K$806K

This home is worth more than 44% of homes in Prosser 99350.

How it measures up in Prosser 99350

The dot is this home. The mark in the middle is the typical home in Prosser 99350.

Estimated value$355,378
CheaperTypical $371,550Pricier

Pricier than 44% of homes nearby

Price per ft²$220
CheaperTypical $247Pricier

Pricier than 30% of homes nearby

Living area1,616 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 52% of homes nearby

Lot size0.13 ac
SmallerTypical 1 acBigger

Bigger than 4% of homes nearby

Year built1927
OlderTypical 1984Newer

Newer than 10% of homes nearby

How 607 Guernsey St ranks against every home in each area.
MeasureThis homeProsser 99350Benton County
Estimated valuepricier than$355,37844% of homes26% of homes
Price per ft²pricier than$22030% of homes25% of homes
Living areabigger than1,616 ft²52% of homes41% of homes
Lot sizebigger than0.13 ac4% of homes8% of homes
Year builtnewer than192710% of homesalmost no homes

About 607 Guernsey St

How much is 607 Guernsey St, Prosser, WA worth?

The TopHap Estimate for 607 Guernsey St, Prosser, WA is $355,378 as of Aug 30, 2026. The likely range is $338,978 to $371,778. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 607 Guernsey St, Prosser, WA last sell?

607 Guernsey St, Prosser, WA last sold on Apr 21, 2017 for $200,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 607 Guernsey St, Prosser, WA?

607 Guernsey St, Prosser, WA has 2 bedrooms, 1 bathrooms, 1,616 square feet of living space and a 0.13-acre lot.

When was 607 Guernsey St, Prosser, WA built?

607 Guernsey St, Prosser, WA was built in 1927, making it 99 years old. It is a conventional home. The building has 1 story.

What schools serve 607 Guernsey St, Prosser, WA?

607 Guernsey St, Prosser, WA is assigned to Prosser High School (high), rated B-; Keene-Riverview Elementary (elementary); Housel Middle School (middle), rated C+. All sit in Prosser School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 607 Guernsey St, Prosser, WA compare to other homes in Prosser 99350?

Among the 4,259 homes in Prosser 99350, it is worth more than 44% of them ($355,378 against a typical $371,550), its price per square foot is higher than 30% of them ($220 against a typical $247), it is bigger than 52% of them (1,616 ft² against a typical 1,568 ft²), its lot is bigger than 4% of them (0.13 ac against a typical 1 ac) and it is newer than 10% of them (1927 against a typical 1984). Measured against all of Benton County, it is worth more than 26% 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 607 Guernsey St, Prosser, WA?

The 2025 property tax bill for 607 Guernsey St, Prosser, WA was $3,121. The county assessed it at $304,450.

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