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Duplex (2 Units, Any Combination)Residential

315 N 21ST ST

COLLINSVILLE, OK 74021
2
Baths
1,854 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.
0.19 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,148 (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.$10,384 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,540
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$8,844
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$10,384
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$94,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyTulsa
Lot (acres)The size of the land the home sits on, from county records.0.19
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Closed Piers
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 220 ft²Porch · 215 ft²

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
Collinsville High SchoolB+
High · Grades 9–12 · 0.3 mi
M
Collinsville Middle SchoolB
Middle · Grades 7–8 · 0.5 mi
E
Herald Elementary SchoolA
Elementary · Grades 1–2 · 2.2 mi

District: Collinsville Public Schools

Neighborhood · ZIP 74021These 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.55
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 100.33

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.6%
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.21,984
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.321 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$83,446
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$102,133
Average tempThe average temperature here across a full year.60°F
Annual precipHow much rain and melted snow falls here in a typical year.41 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

315 N 21st 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.

  • Has a smaller lot than 79% of homes in Collinsville 74021
  • Older than 88% of homes in Collinsville 74021

How it measures up in Collinsville 74021

The dot is this home. The mark in the middle is the typical home in Collinsville 74021.

Living area1,854 ft²
SmallerTypical 1,695 ft²Bigger

Bigger than 61% of homes nearby

Lot size0.19 ac
SmallerTypical 0.5 acBigger

Bigger than 21% of homes nearby

Year built1958
OlderTypical 2001Newer

Newer than 12% of homes nearby

How 315 N 21st St ranks against every home in each area.
MeasureThis homeCollinsville 74021Tulsa County
Living areabigger than1,854 ft²61% of homes60% of homes
Lot sizebigger than0.19 ac21% of homes38% of homes
Year builtnewer than195812% of homes29% of homes

About 315 N 21st St

When did 315 N 21st St, Collinsville, OK last sell?

315 N 21st St, Collinsville, OK last sold on Dec 19, 2000, according to the county's recorded deed.

How big is 315 N 21st St, Collinsville, OK?

315 N 21st St, Collinsville, OK has 2 bathrooms, 1,854 square feet of living space and a 0.19-acre lot.

When was 315 N 21st St, Collinsville, OK built?

315 N 21st St, Collinsville, OK was built in 1958, making it 68 years old. It is a duplex single home. The building has 1 story.

What schools serve 315 N 21st St, Collinsville, OK?

315 N 21st St, Collinsville, OK is assigned to Collinsville High School (high), rated B+; Collinsville Middle School (middle), rated B; Herald Elementary School (elementary), rated A. All sit in Collinsville Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 315 N 21st St, Collinsville, OK compare to other homes in Collinsville 74021?

Among the 8,528 homes in Collinsville 74021, it is bigger than 61% of them (1,854 ft² against a typical 1,695 ft²), its lot is bigger than 21% of them (0.19 ac against a typical 0.5 ac) and it is newer than 12% of them (1958 against a typical 2001). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 315 N 21st St, Collinsville, OK?

The 2025 property tax bill for 315 N 21st St, Collinsville, OK was $1,148. The county assessed it at $10,384.

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