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Single Family ResidenceResidential
$736,167$259 / 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 80How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $130,000 on Feb 2, 1993

400 RIVERSIDE DR

SAINT HELENS, OR 97051
3
Beds
3 / 1
Baths
2,847 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.
0.99 ac
Lot SizeThe size of the land the home sits on, from county records.
1994
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$736K
$590K low$883K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$130,000 · Feb 2, 1993

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$10,393 (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.$645,080 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$240,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$404,680
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$626,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,136,270

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 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
CountyColumbia
Lot (acres)The size of the land the home sits on, from county records.0.99
HeatingThe type of heating system in the home.Heat Pump
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Lewis & Clark Elementary SchoolC-
Elementary · Grades KG–6 · 0.8 mi
M
St. Helens Middle SchoolD-
Middle · Grades 7–8 · 0.9 mi
H
St. Helens High SchoolC
High · Grades 9–12 · 2.3 mi

District: St. Helens School District 502

Neighborhood · ZIP 97051These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.176

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.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
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.17,648
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.311 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$82,326
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$93,299
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.57 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

400 Riverside Dr 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 94% of homes in Saint Helens 97051
  • Costs less per square foot than 65% of homes in Saint Helens 97051
  • Bigger than 94% of homes in Saint Helens 97051
  • Has a bigger lot than 83% of homes in Saint Helens 97051

What homes are worth in Saint Helens 97051

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

This home
$262K$897K

This home is worth more than 94% of homes in Saint Helens 97051.

How it measures up in Saint Helens 97051

The dot is this home. The mark in the middle is the typical home in Saint Helens 97051.

Estimated value$736,167
CheaperTypical $434,396Pricier

Pricier than 94% of homes nearby

Price per ft²$259
CheaperTypical $283Pricier

Pricier than 35% of homes nearby

Living area2,847 ft²
SmallerTypical 1,580 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.99 ac
SmallerTypical 0.17 acBigger

Bigger than 83% of homes nearby

Year built1994
OlderTypical 1982Newer

Newer than 58% of homes nearby

How 400 Riverside Dr ranks against every home in each area.
MeasureThis homeSaint Helens 97051Columbia County
Estimated valuepricier than$736,16794% of homes91% of homes
Price per ft²pricier than$25935% of homes43% of homes
Living areabigger than2,847 ft²94% of homes91% of homes
Lot sizebigger than0.99 ac83% of homes62% of homes
Year builtnewer than199458% of homes62% of homes

About 400 Riverside Dr

How much is 400 Riverside Dr, Saint Helens, OR worth?

The TopHap Estimate for 400 Riverside Dr, Saint Helens, OR is $736,167 as of Jul 14, 2026. The likely range is $589,763 to $882,571. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 400 Riverside Dr, Saint Helens, OR last sell?

400 Riverside Dr, Saint Helens, OR last sold on Feb 2, 1993 for $130,000, according to the county's recorded deed.

How big is 400 Riverside Dr, Saint Helens, OR?

400 Riverside Dr, Saint Helens, OR has 3 bedrooms, 3 bathrooms, 2,847 square feet of living space and a 0.99-acre lot.

When was 400 Riverside Dr, Saint Helens, OR built?

400 Riverside Dr, Saint Helens, OR was built in 1994, making it 32 years old. The building has 2 stories.

What schools serve 400 Riverside Dr, Saint Helens, OR?

400 Riverside Dr, Saint Helens, OR is assigned to Lewis & Clark Elementary School (elementary), rated C-; St. Helens Middle School (middle), rated D-; St. Helens High School (high), rated C. All sit in St. Helens School District 502. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 400 Riverside Dr, Saint Helens, OR compare to other homes in Saint Helens 97051?

Among the 6,017 homes in Saint Helens 97051, it is worth more than 94% of them ($736,167 against a typical $434,396), its price per square foot is higher than 35% of them ($259 against a typical $283), it is bigger than 94% of them (2,847 ft² against a typical 1,580 ft²), its lot is bigger than 83% of them (0.99 ac against a typical 0.17 ac) and it is newer than 58% of them (1994 against a typical 1982). Measured against all of Columbia County, it is worth more than 91% 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 400 Riverside Dr, Saint Helens, OR?

The 2025 property tax bill for 400 Riverside Dr, Saint Helens, OR was $10,393. The county assessed it at $645,080.

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