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Rural ResidenceResidential
$87,119$42 / 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 83How 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
Last sold for $16,000 on Aug 26, 2020

343 COUNTY ROUTE 21

MARTVILLE, NY 13111
2
Beds
1
Baths
2,065 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.
14.4 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.
2
StoriesHow many floors the home has above ground.

Valuation

$87K
$73K low$102K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$16,000 · Aug 26, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,416 (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.$35,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$24,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$10,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$35,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$60,345

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.38
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
57
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
87
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
21
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Rural Residence
StyleThe architectural style of the home, such as ranch or colonial.Traditional/Old
CountyOSWEGO
Lot (acres)The size of the land the home sits on, from county records.14.40
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
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 · 210 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
Fairley SchoolD-
Elementary · Grades PK–4 · 2.5 mi
M
Kenney Middle SchoolC+
Middle · Grades 5–8 · 2.5 mi
H
Hannibal High SchoolD-
High · Grades 9–12 · 2.9 mi

District: Hannibal Central School District

Neighborhood · ZIP 13111These 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.103
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.1,643
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.62 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,677
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,564
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.49%

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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

343 County Route 21 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 less than 93% of homes in Oswego County
  • Among the lowest price per square foot in Oswego County
  • Bigger than 88% of homes in Martville 13111
  • Has a bigger lot than 90% of homes in Oswego County
  • Older than 87% of homes in Oswego County

What homes are worth in Martville 13111

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

This home
$45K$322K

This home is worth more than 19% of homes in Martville 13111.

How it measures up in Martville 13111

The dot is this home. The mark in the middle is the typical home in Martville 13111.

Estimated value$87,119
CheaperTypical $139,680Pricier

Pricier than 19% of homes nearby

Price per ft²$42
CheaperTypical $93Pricier

Pricier than 5% of homes nearby

Living area2,065 ft²
SmallerTypical 1,404 ft²Bigger

Bigger than 88% of homes nearby

Lot size14.4 ac
SmallerTypical 4.63 acBigger

Bigger than 73% of homes nearby

Year built1890
OlderTypical 1979Newer

Newer than 16% of homes nearby

How 343 County Route 21 ranks against every home in each area.
MeasureThis homeMartville 13111Oswego County
Estimated valuepricier than$87,11919% of homes7% of homes
Price per ft²pricier than$425% of homesalmost no homes
Living areabigger than2,065 ft²88% of homes83% of homes
Lot sizebigger than14.4 ac73% of homes90% of homes
Year builtnewer than189016% of homes13% of homes

About 343 County Route 21

How much is 343 County Route 21, Martville, NY worth?

The TopHap Estimate for 343 County Route 21, Martville, NY is $87,119 as of Aug 30, 2026. The likely range is $72,700 to $101,538. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 343 County Route 21, Martville, NY last sell?

343 County Route 21, Martville, NY last sold on Aug 26, 2020 for $16,000, according to the county's recorded deed.

How big is 343 County Route 21, Martville, NY?

343 County Route 21, Martville, NY has 2 bedrooms, 1 bathrooms, 2,065 square feet of living space and a 14.40-acre lot.

When was 343 County Route 21, Martville, NY built?

343 County Route 21, Martville, NY was built in 1890, making it 136 years old. It is a traditional/old home. The building has 2 stories.

What schools serve 343 County Route 21, Martville, NY?

343 County Route 21, Martville, NY is assigned to Fairley School (elementary), rated D-; Kenney Middle School (middle), rated C+; Hannibal High School (high), rated D-. All sit in Hannibal Central School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 343 County Route 21, Martville, NY compare to other homes in Martville 13111?

Among the 621 homes in Martville 13111, it is worth more than 19% of them ($87,119 against a typical $139,680), its price per square foot is higher than 5% of them ($42 against a typical $93), it is bigger than 88% of them (2,065 ft² against a typical 1,404 ft²), its lot is bigger than 73% of them (14.4 ac against a typical 4.63 ac) and it is newer than 16% of them (1890 against a typical 1979). Measured against all of Oswego County, it is worth more than 7% 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 343 County Route 21, Martville, NY?

The 2025 property tax bill for 343 County Route 21, Martville, NY was $1,416. The county assessed it at $35,000.

More homes on County Route 21

Closest homes

More homes in Martville 13111

Assigned schools

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