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Single Family ResidenceResidential
$343,866$193 / 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 91How 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

20850 SAINT LUCAS RD

ONAGA, KS 66521
2
Beds
2
Baths
1,785 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.
5.73 ac
Lot SizeThe size of the land the home sits on, from county records.
1870
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.

Valuation

$344K
$313K low$374K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,158 (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.$36,185 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,825
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$34,360
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,335
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$314,650

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.86 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.minimal

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
CountyPOTTAWATOMIE
Lot (acres)The size of the land the home sits on, from county records.5.73
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Heat Pump
CoolingThe type of cooling or air conditioning in the home.Yes
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 · 608 ft²Patio · 1,052 ft²Porch · 2,460 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 · 4.4 mi
H
Onaga Senior High SchoolA-
High · Grades 9–12 · 4.5 mi
M
Onaga Middle SchoolB+
Middle · Grades 6–8 · 4.5 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

20850 Saint Lucas Rd 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 79% of homes in Onaga 66521
  • Costs more per square foot than 75% of homes in Onaga 66521
  • Bigger than 72% of homes in Pottawatomie County
  • Has a bigger lot than 82% of homes in Pottawatomie County
  • Among the oldest 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
$84K$531K

This home is worth more than 79% 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$343,866
CheaperTypical $206,943Pricier

Pricier than 79% of homes nearby

Price per ft²$193
CheaperTypical $138Pricier

Pricier than 75% of homes nearby

Living area1,785 ft²
SmallerTypical 1,456 ft²Bigger

Bigger than 71% of homes nearby

Lot size5.73 ac
SmallerTypical 1 acBigger

Bigger than 63% of homes nearby

Year built1870
OlderTypical 1930Newer

Newer than 2% of homes nearby

How 20850 Saint Lucas Rd ranks against every home in each area.
MeasureThis homeOnaga 66521Pottawatomie County
Estimated valuepricier than$343,86679% of homes54% of homes
Price per ft²pricier than$19375% of homes37% of homes
Living areabigger than1,785 ft²71% of homes72% of homes
Lot sizebigger than5.73 ac63% of homes82% of homes
Year builtnewer than18702% of homesalmost no homes

About 20850 Saint Lucas Rd

How much is 20850 Saint Lucas Rd, Onaga, KS worth?

The TopHap Estimate for 20850 Saint Lucas Rd, Onaga, KS is $343,866 as of Aug 30, 2026. The likely range is $313,321 to $374,411. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20850 Saint Lucas Rd, Onaga, KS last sell?

20850 Saint Lucas Rd, Onaga, KS last sold on Nov 20, 2023, according to the county's recorded deed.

How big is 20850 Saint Lucas Rd, Onaga, KS?

20850 Saint Lucas Rd, Onaga, KS has 2 bedrooms, 2 bathrooms, 1,785 square feet of living space and a 5.73-acre lot.

When was 20850 Saint Lucas Rd, Onaga, KS built?

20850 Saint Lucas Rd, Onaga, KS was built in 1870, making it 156 years old. The building has 1 story.

What schools serve 20850 Saint Lucas Rd, Onaga, KS?

20850 Saint Lucas Rd, 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 20850 Saint Lucas Rd, Onaga, KS compare to other homes in Onaga 66521?

Among the 693 homes in Onaga 66521, it is worth more than 79% of them ($343,866 against a typical $206,943), its price per square foot is higher than 75% of them ($193 against a typical $138), it is bigger than 71% of them (1,785 ft² against a typical 1,456 ft²), its lot is bigger than 63% of them (5.73 ac against a typical 1 ac) and it is newer than 2% of them (1870 against a typical 1930). Measured against all of Pottawatomie County, it is worth more than 54% 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 20850 Saint Lucas Rd, Onaga, KS?

The 2024 property tax bill for 20850 Saint Lucas Rd, Onaga, KS was $3,158. The county assessed it at $36,185.

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