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Single Family ResidenceResidential
$89,591$104 / 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 87How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

318 PROSPECT ST

ONAGA, KS 66521
2
Beds
1
Baths
864 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
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

$90K
$78K low$101K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$491 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$4,301 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$635
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$3,666
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$4,270
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$37,400

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.Bungalow
CountyPOTTAWATOMIE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1984
Lot (acres)The size of the land the home sits on, from county records.0.21
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
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 · 36 ft²Shed · 80 ft²Patio · 72 ft²Porch · 273 ft²

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

E
Onaga Elementary SchoolC+
Elementary · Grades PK–5 · 0.1 mi
H
Onaga Senior High SchoolA-
High · Grades 9–12 · 0.1 mi
M
Onaga Middle SchoolB+
Middle · Grades 6–8 · 0.1 mi

District: Onaga-Havensville-Wheaton Unified School District 322

Neighborhood · ZIP 66521These 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.166
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.93
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.52

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.3%
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.1,925
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.10 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,814
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$82,947
Average tempThe average temperature here across a full year.54°F
Annual precipHow much rain and melted snow falls here in a typical year.35 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

318 Prospect 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.

  • Among the least valuable homes in Pottawatomie County
  • Costs less per square foot than 96% of homes in Pottawatomie County
  • Smaller than 96% of homes in Pottawatomie County
  • Has a smaller lot than 89% of homes in Onaga 66521
  • Older than 95% of homes in Pottawatomie County

What homes are worth in Onaga 66521

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

This home
$82K$531K

This home is worth more than 4% of homes in Onaga 66521.

How it measures up in Onaga 66521

The dot is this home. The mark in the middle is the typical home in Onaga 66521.

Estimated value$89,591
CheaperTypical $206,943Pricier

Pricier than 4% of homes nearby

Price per ft²$104
CheaperTypical $139Pricier

Pricier than 25% of homes nearby

Living area864 ft²
SmallerTypical 1,456 ft²Bigger

Bigger than 7% of homes nearby

Lot size0.21 ac
SmallerTypical 1 acBigger

Bigger than 11% of homes nearby

Year built1890
OlderTypical 1930Newer

Newer than 11% of homes nearby

How 318 Prospect St ranks against every home in each area.
MeasureThis homeOnaga 66521Pottawatomie County
Estimated valuepricier than$89,5914% of homesalmost no homes
Price per ft²pricier than$10425% of homes4% of homes
Living areabigger than864 ft²7% of homes4% of homes
Lot sizebigger than0.21 ac11% of homes17% of homes
Year builtnewer than189011% of homes5% of homes

About 318 Prospect St

How much is 318 Prospect St, Onaga, KS worth?

The TopHap Estimate for 318 Prospect St, Onaga, KS is $89,591 as of Aug 30, 2026. The likely range is $77,776 to $101,406. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 318 Prospect St, Onaga, KS last sell?

318 Prospect St, Onaga, KS last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 318 Prospect St, Onaga, KS?

318 Prospect St, Onaga, KS has 2 bedrooms, 1 bathrooms, 864 square feet of living space and a 0.21-acre lot.

When was 318 Prospect St, Onaga, KS built?

318 Prospect St, Onaga, KS was built in 1890, making it 136 years old. It is a bungalow home. The building has 1 story.

What schools serve 318 Prospect St, Onaga, KS?

318 Prospect St, Onaga, KS is assigned to Onaga Elementary School (elementary), rated C+; Onaga Senior High School (high), rated A-; Onaga Middle School (middle), rated B+. All sit in Onaga-Havensville-Wheaton Unified School District 322. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 318 Prospect St, Onaga, KS compare to other homes in Onaga 66521?

Among the 693 homes in Onaga 66521, it is worth more than 4% of them ($89,591 against a typical $206,943), its price per square foot is higher than 25% of them ($104 against a typical $139), it is bigger than 7% of them (864 ft² against a typical 1,456 ft²), its lot is bigger than 11% of them (0.21 ac against a typical 1 ac) and it is newer than 11% of them (1890 against a typical 1930). Measured against all of Pottawatomie County, it is worth more than almost no 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 318 Prospect St, Onaga, KS?

The 2024 property tax bill for 318 Prospect St, Onaga, KS was $491. The county assessed it at $4,301.

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