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Seasonal, Cabin, Vacation ResidenceResidential
Last sold for $530,000 on May 19, 2026

42799 COUNTY ROUTE 100

WELLESLEY ISLAND, NY 13640
5
Beds
1.5
Baths
1,801 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.
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$530,000 · May 19, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,856 (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.$108,500 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$28,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$79,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$108,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$144,667

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Seasonal, Cabin, Vacation Residence
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyJEFFERSON
Lot (acres)The size of the land the home sits on, from county records.0.30
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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.Porch · 654 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.

E
La Fargeville Central SchoolB
Elementary · Grades PK–12 · 6.9 mi

District: La Fargeville Central School District

Neighborhood · ZIP 13640These 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.193
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 100.68

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.20%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.515
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.29 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,062
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$128,564
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.38 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.46%

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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

42799 County Route 100 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.

  • Bigger than 70% of homes in Wellesley Island 13640
  • Has a smaller lot than 68% of homes in Jefferson County
  • Older than 95% of homes in Wellesley Island 13640

How it measures up in Wellesley Island 13640

The dot is this home. The mark in the middle is the typical home in Wellesley Island 13640.

Living area1,801 ft²
SmallerTypical 1,492 ft²Bigger

Bigger than 70% of homes nearby

Lot size0.3 ac
SmallerTypical 0.5 acBigger

Bigger than 37% of homes nearby

Year built1880
OlderTypical 1983Newer

Newer than 5% of homes nearby

How 42799 County Route 100 ranks against every home in each area.
MeasureThis homeWellesley Island 13640Jefferson County
Living areabigger than1,801 ft²70% of homes69% of homes
Lot sizebigger than0.3 ac37% of homes32% of homes
Year builtnewer than18805% of homes18% of homes

About 42799 County Route 100

When did 42799 County Route 100, Wellesley Island, NY last sell?

42799 County Route 100, Wellesley Island, NY last sold on May 19, 2026 for $530,000, according to the county's recorded deed.

How big is 42799 County Route 100, Wellesley Island, NY?

42799 County Route 100, Wellesley Island, NY has 5 bedrooms, 1.5 bathrooms, 1,801 square feet of living space and a 0.30-acre lot.

When was 42799 County Route 100, Wellesley Island, NY built?

42799 County Route 100, Wellesley Island, NY was built in 1880, making it 146 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 42799 County Route 100, Wellesley Island, NY?

42799 County Route 100, Wellesley Island, NY is assigned to La Fargeville Central School (elementary), rated B. All sit in La Fargeville Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 42799 County Route 100, Wellesley Island, NY compare to other homes in Wellesley Island 13640?

Among the 795 homes in Wellesley Island 13640, it is bigger than 70% of them (1,801 ft² against a typical 1,492 ft²), its lot is bigger than 37% of them (0.3 ac against a typical 0.5 ac) and it is newer than 5% of them (1880 against a typical 1983). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 42799 County Route 100, Wellesley Island, NY?

The 2025 property tax bill for 42799 County Route 100, Wellesley Island, NY was $1,856. The county assessed it at $108,500.

More homes on County Route 100

Closest homes

More homes in Wellesley Island 13640

Assigned schools

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