Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$666,702$251 / 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 Sep 24, 2026
Last sold for $350,000 on Oct 20, 2016

421 S 30TH ST

PHILOMATH, OR 97370
4
Beds
3
Baths
2,651 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
9
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$667K
$632K low$702K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$350,000 · Oct 20, 2016

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,446 (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.$409,298 (2025)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$397,377
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$599,956

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBENTON
Lot (acres)The size of the land the home sits on, from county records.0.28
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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.

H
Philomath High SchoolA-
High · Grades 9–12 · 0.8 mi
M
Philomath Middle SchoolC+
Middle · Grades 6–8 · 0.8 mi
E
Philomath Elementary SchoolA
Elementary · Grades 1–5 · 1.1 mi

District: Philomath School District 17j

Neighborhood · ZIP 97370These 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.100
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.182

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.3%
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.8,119
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.55 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,061
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$104,072
Average tempThe average temperature here across a full year.51°F
Annual precipHow much rain and melted snow falls here in a typical year.73 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.47%

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

421 S 30th 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 81% of homes in Philomath 97370
  • Costs less per square foot than 84% of homes in Benton County
  • Bigger than 86% of homes in Philomath 97370

What homes are worth in Philomath 97370

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

This home
$284K$1M

This home is worth more than 81% of homes in Philomath 97370.

How it measures up in Philomath 97370

The dot is this home. The mark in the middle is the typical home in Philomath 97370.

Estimated value$666,702
CheaperTypical $495,596Pricier

Pricier than 81% of homes nearby

Price per ft²$251
CheaperTypical $297Pricier

Pricier than 22% of homes nearby

Living area2,651 ft²
SmallerTypical 1,679 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.28 ac
SmallerTypical 0.32 acBigger

Bigger than 47% of homes nearby

Year built1990
OlderTypical 1987Newer

Newer than 53% of homes nearby

How 421 S 30th St ranks against every home in each area.
MeasureThis homePhilomath 97370Benton County
Estimated valuepricier than$666,70281% of homes75% of homes
Price per ft²pricier than$25122% of homes16% of homes
Living areabigger than2,651 ft²86% of homes82% of homes
Lot sizebigger than0.28 ac47% of homes62% of homes
Year builtnewer than199053% of homes63% of homes

About 421 S 30th St

How much is 421 S 30th St, Philomath, OR worth?

The TopHap Estimate for 421 S 30th St, Philomath, OR is $666,702 as of Sep 24, 2026. The likely range is $631,609 to $701,795. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 S 30th St, Philomath, OR last sell?

421 S 30th St, Philomath, OR last sold on Oct 20, 2016 for $350,000, according to the county's recorded deed.

How big is 421 S 30th St, Philomath, OR?

421 S 30th St, Philomath, OR has 4 bedrooms, 3 bathrooms, 2,651 square feet of living space and a 0.28-acre lot.

When was 421 S 30th St, Philomath, OR built?

421 S 30th St, Philomath, OR was built in 1990, making it 36 years old. The building has 1 story.

What schools serve 421 S 30th St, Philomath, OR?

421 S 30th St, Philomath, OR is assigned to Philomath High School (high), rated A-; Philomath Middle School (middle), rated C+; Philomath Elementary School (elementary), rated A. All sit in Philomath School District 17j. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 S 30th St, Philomath, OR compare to other homes in Philomath 97370?

Among the 3,374 homes in Philomath 97370, it is worth more than 81% of them ($666,702 against a typical $495,596), its price per square foot is higher than 22% of them ($251 against a typical $297), it is bigger than 86% of them (2,651 ft² against a typical 1,679 ft²), its lot is bigger than 47% of them (0.28 ac against a typical 0.32 ac) and it is newer than 53% of them (1990 against a typical 1987). Measured against all of Benton County, it is worth more than 75% 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 421 S 30th St, Philomath, OR?

The 2025 property tax bill for 421 S 30th St, Philomath, OR was $8,446. The county assessed it at $409,298.

More homes on S 30th St

Closest homes

More homes in Philomath 97370

Assigned schools

Explore the area

See this home in context

Open 421 S 30th 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