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Single Family ResidenceResidential
$527,161
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 97How 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 $366,000 on Mar 17, 2020

21 SW KALMIA AVE

WARRENTON, OR 97146
0
Baths
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
2019
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$527K
$510K low$544K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$366,000 · Mar 17, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,779 (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.$280,918 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$272,737
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$549,242

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.48
97
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
9
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.182 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.minimal

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
CountyCLATSOP
Lot (acres)The size of the land the home sits on, from county records.0.16
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

E
Warrenton Grade SchoolC-
Elementary · Grades KG–5 · 0.9 mi
H
Warrenton High SchoolC
High · Grades 9–12 · 1.7 mi
M
Warrenton Middle SchoolC-
Middle · Grades 6–8 · 23.0 mi

District: Warrenton-Hammond School District 30

Neighborhood · ZIP 97146These 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.127
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.106
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.302

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.90%
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.6.5%
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.5,859
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.126 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,708
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,202
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.76 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

21 Sw Kalmia Ave 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.

  • Has a smaller lot than 84% of homes in Warrenton 97146
  • Newer than 96% of homes in Clatsop County

What homes are worth in Warrenton 97146

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

This home
$180K$1.3M

This home is worth more than 55% of homes in Warrenton 97146.

How it measures up in Warrenton 97146

The dot is this home. The mark in the middle is the typical home in Warrenton 97146.

Estimated value$527,161
CheaperTypical $501,184Pricier

Pricier than 55% of homes nearby

Lot size0.16 ac
SmallerTypical 0.4 acBigger

Bigger than 16% of homes nearby

Year built2019
OlderTypical 1980Newer

Newer than 94% of homes nearby

How 21 Sw Kalmia Ave ranks against every home in each area.
MeasureThis homeWarrenton 97146Clatsop County
Estimated valuepricier than$527,16155% of homes54% of homes
Lot sizebigger than0.16 ac16% of homes38% of homes
Year builtnewer than201994% of homes96% of homes

About 21 Sw Kalmia Ave

How much is 21 Sw Kalmia Ave, Warrenton, OR worth?

The TopHap Estimate for 21 Sw Kalmia Ave, Warrenton, OR is $527,161 as of Oct 21, 2026. The likely range is $509,967 to $544,355. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Sw Kalmia Ave, Warrenton, OR last sell?

21 Sw Kalmia Ave, Warrenton, OR last sold on Mar 17, 2020 for $366,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

When was 21 Sw Kalmia Ave, Warrenton, OR built?

21 Sw Kalmia Ave, Warrenton, OR was built in 2019, making it 7 years old. The building has 2 stories.

What schools serve 21 Sw Kalmia Ave, Warrenton, OR?

21 Sw Kalmia Ave, Warrenton, OR is assigned to Warrenton Grade School (elementary), rated C-; Warrenton High School (high), rated C; Warrenton Middle School (middle), rated C-. All sit in Warrenton-Hammond School District 30. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Sw Kalmia Ave, Warrenton, OR compare to other homes in Warrenton 97146?

Among the 3,077 homes in Warrenton 97146, it is worth more than 55% of them ($527,161 against a typical $501,184), its lot is bigger than 16% of them (0.16 ac against a typical 0.4 ac) and it is newer than 94% of them (2019 against a typical 1980). Measured against all of Clatsop County, it is worth more than 54% 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 21 Sw Kalmia Ave, Warrenton, OR?

The 2026 property tax bill for 21 Sw Kalmia Ave, Warrenton, OR was $3,779. The county assessed it at $280,918.

More homes on Sw Kalmia Ave

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More homes in Warrenton 97146

Assigned schools

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See this home in context

Open 21 Sw Kalmia Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

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