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Duplex (2 Units, Any Combination)Residential
Last sold for $396,400 on Mar 8, 2010

421 LOCUST ST

MOUNT VERNON, NY 10552
0
Baths
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$396,400 · Mar 8, 2010

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$24,570 (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.$13,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$2,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$11,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$13,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$761,111

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.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
67
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
83
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
49
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyWESTCHESTER
Lot (acres)The size of the land the home sits on, from county records.0.11
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Nelson Mandela/Hosea Zollicoffer Elementary SchoolB-
Elementary · Grades KG–6 · 0.3 mi
M
Mount Vernon STEAM AcademyB
Middle · Grades 7–8 · 1.0 mi
H
Mount Vernon High SchoolC-
High · Grades 9–12 · 1.5 mi

District: Mount Vernon School District

Neighborhood · ZIP 10552These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.115
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.112

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.20,723
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12,709 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,347
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$130,617
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.49 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.55%

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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

421 Locust 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.

  • Has a smaller lot than 75% of homes in Westchester County

How it measures up in Mount Vernon 10552

The dot is this home. The mark in the middle is the typical home in Mount Vernon 10552.

Lot size0.11 ac
SmallerTypical 0.13 acBigger

Bigger than 38% of homes nearby

How 421 Locust St ranks against every home in each area.
MeasureThis homeFleetwoodMount Vernon 10552Westchester County
Lot sizebigger than0.11 ac46% of homes38% of homes25% of homes

About 421 Locust St

When did 421 Locust St, Mount Vernon, NY last sell?

421 Locust St, Mount Vernon, NY last sold on Mar 8, 2010 for $396,400, according to the county's recorded deed.

What schools serve 421 Locust St, Mount Vernon, NY?

421 Locust St, Mount Vernon, NY is assigned to Nelson Mandela/Hosea Zollicoffer Elementary School (elementary), rated B-; Mount Vernon STEAM Academy (middle), rated B; Mount Vernon High School (high), rated C-. All sit in Mount Vernon School District. Attendance boundaries change — confirm with the district before relying on an assignment.

What are the property taxes on 421 Locust St, Mount Vernon, NY?

The 2025 property tax bill for 421 Locust St, Mount Vernon, NY was $24,570. The county assessed it at $13,700.

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