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Single Family ResidenceResidential
$547,758$238 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $382,900 on Oct 30, 2020

18 W EXCHANGE ST

ASTORIA, OR 97103
3
Beds
4
Baths
2,300 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$548K
$517K low$579K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$382,900 · Oct 30, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,233 (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.$401,525 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$401,525
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$254,447
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$589,726

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.38
45
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
36
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
100
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
1
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.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.0.2 percent flood zone

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.Raised Ranch
CountyClatsop
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.2015
Lot (acres)The size of the land the home sits on, from county records.0.10
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Baseboard
FireplaceWhether the home has a fireplace, and what kind.Prefab
PoolWhether the property has a pool, and what kind, such as in-ground.Spa/Hot Tub (Only)
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 468 ft²Patio · 468 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
Astoria High SchoolC+
High · Grades 9–12 · 0.8 mi
M
Astoria Middle SchoolC-
Middle · Grades 6–8 · 0.9 mi
E
John Jacob Astor Elementary School
Elementary · Grades KG–2 · 1.9 mi

District: Astoria School District 1

Neighborhood · ZIP 97103These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.109
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.268

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.19,596
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.57 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,645
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$86,548
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.96 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.48%

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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

18 W Exchange 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 more than 72% of homes in Astoria 97103
  • Costs less per square foot than 87% of homes in Clatsop County
  • Bigger than 84% of homes in Astoria 97103
  • Has a smaller lot than 89% of homes in Clatsop County
  • Newer than 90% of homes in Astoria Downtown

What homes are worth in Astoria 97103

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

This home
$197K$845K

This home is worth more than 72% of homes in Astoria 97103.

How it measures up in Astoria 97103

The dot is this home. The mark in the middle is the typical home in Astoria 97103.

Estimated value$547,758
CheaperTypical $450,561Pricier

Pricier than 72% of homes nearby

Price per ft²$238
CheaperTypical $296Pricier

Pricier than 18% of homes nearby

Living area2,300 ft²
SmallerTypical 1,550 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.1 ac
SmallerTypical 0.31 acBigger

Bigger than 12% of homes nearby

Year built1996
OlderTypical 1952Newer

Newer than 80% of homes nearby

How 18 W Exchange St ranks against every home in each area.
MeasureThis homeAstoria DowntownAstoria 97103Clatsop County
Estimated valuepricier than$547,75871% of homes72% of homes58% of homes
Price per ft²pricier than$23823% of homes18% of homes13% of homes
Living areabigger than2,300 ft²81% of homes84% of homes84% of homes
Lot sizebigger than0.1 ac46% of homes12% of homes11% of homes
Year builtnewer than199690% of homes80% of homes73% of homes

About 18 W Exchange St

How much is 18 W Exchange St, Astoria, OR worth?

The TopHap Estimate for 18 W Exchange St, Astoria, OR is $547,758 as of Sep 24, 2026. The likely range is $516,621 to $578,895. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 18 W Exchange St, Astoria, OR last sell?

18 W Exchange St, Astoria, OR last sold on Oct 30, 2020 for $382,900, according to the county's recorded deed.

How big is 18 W Exchange St, Astoria, OR?

18 W Exchange St, Astoria, OR has 3 bedrooms, 4 bathrooms, 2,300 square feet of living space and a 0.10-acre lot.

When was 18 W Exchange St, Astoria, OR built?

18 W Exchange St, Astoria, OR was built in 1996, making it 30 years old. It is a raised ranch home. The building has 1 story.

What schools serve 18 W Exchange St, Astoria, OR?

18 W Exchange St, Astoria, OR is assigned to Astoria High School (high), rated C+; Astoria Middle School (middle), rated C-; John Jacob Astor Elementary School (elementary). All sit in Astoria School District 1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18 W Exchange St, Astoria, OR compare to other homes in Astoria 97103?

Among the 7,197 homes in Astoria 97103, it is worth more than 72% of them ($547,758 against a typical $450,561), its price per square foot is higher than 18% of them ($238 against a typical $296), it is bigger than 84% of them (2,300 ft² against a typical 1,550 ft²), its lot is bigger than 12% of them (0.1 ac against a typical 0.31 ac) and it is newer than 80% of them (1996 against a typical 1952). Measured against all of Clatsop County, it is worth more than 58% 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 18 W Exchange St, Astoria, OR?

The 2025 property tax bill for 18 W Exchange St, Astoria, OR was $5,233. The county assessed it at $401,525.

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