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Single Family ResidenceResidential
$36,748$28 / 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 89How 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

515 S 4TH ST

BLACKWELL, OK 74631
3
Beds
1
Baths
1,309 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.
0.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1939
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

$37K
$33K low$41K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$419 (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.$4,145 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$616
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,529
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,948
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$37,684

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.Traditional/Old
CountyKAY
Lot (acres)The size of the land the home sits on, from county records.0.32
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Floor/Wall Furnace
CoolingThe type of cooling or air conditioning in the home.Window A/C
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 192 ft²Shed · 288 ft²Porch · 192 ft²

Transaction History(4)

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.

M
Blackwell Middle SchoolC-
Middle · Grades 6–8 · 0.5 mi
H
Blackwell High SchoolC
High · Grades 9–12 · 0.9 mi
E
Blackwell Elementary SchoolA-
Elementary · Grades PK–5 · 1.1 mi

District: Blackwell Public Schools

Neighborhood · ZIP 74631These 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.136
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.77%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.6%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.6,674
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.64 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$53,571
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$64,876
Average tempThe average temperature here across a full year.59°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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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

515 S 4th 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 94% of homes in Kay County
  • Costs less per square foot than 96% of homes in Kay County
  • Has a bigger lot than 75% of homes in Blackwell 74631
  • Older than 70% of homes in Kay County

What homes are worth in Blackwell 74631

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

This home
$19K$333K

This home is worth more than 26% of homes in Blackwell 74631.

How it measures up in Blackwell 74631

The dot is this home. The mark in the middle is the typical home in Blackwell 74631.

Estimated value$36,748
CheaperTypical $60,660Pricier

Pricier than 26% of homes nearby

Price per ft²$28
CheaperTypical $50Pricier

Pricier than 21% of homes nearby

Living area1,309 ft²
SmallerTypical 1,258 ft²Bigger

Bigger than 55% of homes nearby

Lot size0.32 ac
SmallerTypical 0.23 acBigger

Bigger than 75% of homes nearby

Year built1939
OlderTypical 1938Newer

Newer than 50% of homes nearby

How 515 S 4th St ranks against every home in each area.
MeasureThis homeBlackwell 74631Kay County
Estimated valuepricier than$36,74826% of homes6% of homes
Price per ft²pricier than$2821% of homes4% of homes
Living areabigger than1,309 ft²55% of homes44% of homes
Lot sizebigger than0.32 ac75% of homes65% of homes
Year builtnewer than193950% of homes30% of homes

About 515 S 4th St

How much is 515 S 4th St, Blackwell, OK worth?

The TopHap Estimate for 515 S 4th St, Blackwell, OK is $36,748 as of Sep 24, 2026. The likely range is $32,818 to $40,678. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 515 S 4th St, Blackwell, OK last sell?

515 S 4th St, Blackwell, OK last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 515 S 4th St, Blackwell, OK?

515 S 4th St, Blackwell, OK has 3 bedrooms, 1 bathrooms, 1,309 square feet of living space and a 0.32-acre lot.

When was 515 S 4th St, Blackwell, OK built?

515 S 4th St, Blackwell, OK was built in 1939, making it 87 years old. It is a traditional/old home. The building has 1 story.

What schools serve 515 S 4th St, Blackwell, OK?

515 S 4th St, Blackwell, OK is assigned to Blackwell Middle School (middle), rated C-; Blackwell High School (high), rated C; Blackwell Elementary School (elementary), rated A-. All sit in Blackwell Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 515 S 4th St, Blackwell, OK compare to other homes in Blackwell 74631?

Among the 3,084 homes in Blackwell 74631, it is worth more than 26% of them ($36,748 against a typical $60,660), its price per square foot is higher than 21% of them ($28 against a typical $50), it is bigger than 55% of them (1,309 ft² against a typical 1,258 ft²), its lot is bigger than 75% of them (0.32 ac against a typical 0.23 ac) and it is newer than 50% of them (1939 against a typical 1938). Measured against all of Kay County, it is worth more than 6% 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 515 S 4th St, Blackwell, OK?

The 2025 property tax bill for 515 S 4th St, Blackwell, OK was $419. The county assessed it at $4,145.

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