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Single Family ResidenceResidential
$454,699$192 / 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 Aug 30, 2026

18909 ALDER CT

STEWARTSTOWN, PA 17363
4
Beds
3 / 1
Baths
2,368 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.
1.01 ac
Lot SizeThe size of the land the home sits on, from county records.
1992
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$455K
$431K low$478K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,210 (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.$245,580 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$60,040
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$185,540
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$245,580
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$245,580

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.40
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
9
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
75
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
86
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
StyleThe architectural style of the home, such as ranch or colonial.Contemporary
CountyYork
Lot (acres)The size of the land the home sits on, from county records.1.01
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
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.Patio · 432 ft²Porch · 32 ft²

Transaction History(2)

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.

E
Stewartstown Elementary SchoolB+
Elementary · Grades KG–4 · 1.7 mi
H
Kennard-Dale High SchoolA-
High · Grades 9–12 · 7.7 mi
M
South Eastern Middle School - EastC+
Middle · Grades 7–8 · 7.7 mi

District: South Eastern School District

Neighborhood · ZIP 17363These 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.75
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 100.57

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.4.0%
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.8,670
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.238 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$103,474
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$126,239
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.45 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.57%

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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

18909 Alder Ct 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 86% of homes in York County
  • Costs more per square foot than 65% of homes in York County
  • Bigger than 81% of homes in York County
  • Has a bigger lot than 81% of homes in York County
  • Newer than 69% of homes in York County

What homes are worth in Stewartstown 17363

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

This home
$198K$660K

This home is worth more than 77% of homes in Stewartstown 17363.

How it measures up in Stewartstown 17363

The dot is this home. The mark in the middle is the typical home in Stewartstown 17363.

Estimated value$454,699
CheaperTypical $368,525Pricier

Pricier than 77% of homes nearby

Price per ft²$192
CheaperTypical $194Pricier

Pricier than 47% of homes nearby

Living area2,368 ft²
SmallerTypical 1,838 ft²Bigger

Bigger than 77% of homes nearby

Lot size1.01 ac
SmallerTypical 0.59 acBigger

Bigger than 69% of homes nearby

Year built1992
OlderTypical 1991Newer

Newer than 53% of homes nearby

How 18909 Alder Ct ranks against every home in each area.
MeasureThis homeStewartstown 17363York County
Estimated valuepricier than$454,69977% of homes86% of homes
Price per ft²pricier than$19247% of homes65% of homes
Living areabigger than2,368 ft²77% of homes81% of homes
Lot sizebigger than1.01 ac69% of homes81% of homes
Year builtnewer than199253% of homes69% of homes

About 18909 Alder Ct

How much is 18909 Alder Ct, Stewartstown, PA worth?

The TopHap Estimate for 18909 Alder Ct, Stewartstown, PA is $454,699 as of Aug 30, 2026. The likely range is $431,104 to $478,294. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 18909 Alder Ct, Stewartstown, PA?

18909 Alder Ct, Stewartstown, PA has 4 bedrooms, 3 bathrooms, 2,368 square feet of living space and a 1.01-acre lot.

When was 18909 Alder Ct, Stewartstown, PA built?

18909 Alder Ct, Stewartstown, PA was built in 1992, making it 34 years old. It is a contemporary home. The building has 2 stories.

What schools serve 18909 Alder Ct, Stewartstown, PA?

18909 Alder Ct, Stewartstown, PA is assigned to Stewartstown Elementary School (elementary), rated B+; Kennard-Dale High School (high), rated A-; South Eastern Middle School - East (middle), rated C+. All sit in South Eastern School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 18909 Alder Ct, Stewartstown, PA compare to other homes in Stewartstown 17363?

Among the 3,678 homes in Stewartstown 17363, it is worth more than 77% of them ($454,699 against a typical $368,525), its price per square foot is higher than 47% of them ($192 against a typical $194), it is bigger than 77% of them (2,368 ft² against a typical 1,838 ft²), its lot is bigger than 69% of them (1.01 ac against a typical 0.59 ac) and it is newer than 53% of them (1992 against a typical 1991). Measured against all of York County, it is worth more than 86% 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 18909 Alder Ct, Stewartstown, PA?

The 2025 property tax bill for 18909 Alder Ct, Stewartstown, PA was $7,210. The county assessed it at $245,580.

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