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Residential - Vacant LandResidential

638 PORTLAND AVE

ROCKVILLE CENTRE, NY 11570
0
Baths
3,125 ft²
Lot SizeThe size of the land the home sits on, from county records.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$513 (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.$21 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$21
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$21
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$21,000

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential - Vacant Land
CountyNASSAU
Lot (acres)The size of the land the home sits on, from county records.0.07
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Jennie E. Hewitt Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
M
Southside Middle SchoolB+
Middle · Grades 6–8 · 0.7 mi
H
Southside High SchoolA
High · Grades 9–12 · 0.8 mi

District: Rockville Centre Union Free School District

Neighborhood · ZIP 11570These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.91

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.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.32%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.6%
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.28,370
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.7,589 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$144,451
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$184,571
Average tempThe average temperature here across a full year.54°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.56%

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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

638 Portland Ave 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.

  • Among the smallest lots in Rockville Centre 11570

How it measures up in Rockville Centre 11570

The dot is this home. The mark in the middle is the typical home in Rockville Centre 11570.

Lot size3,125 ft²
SmallerTypical 0.16 acBigger

Smaller than almost all homes nearby

How 638 Portland Ave ranks against every home in each area.
MeasureThis homeRockville Centre 11570Nassau County
Lot sizebigger than3,125 ft²almost no homes3% of homes

About 638 Portland Ave

When did 638 Portland Ave, Rockville Centre, NY last sell?

638 Portland Ave, Rockville Centre, NY last sold on Jan 1, 1900, according to the county's recorded deed.

What schools serve 638 Portland Ave, Rockville Centre, NY?

638 Portland Ave, Rockville Centre, NY is assigned to Jennie E. Hewitt Elementary School (elementary), rated B; Southside Middle School (middle), rated B+; Southside High School (high), rated A. All sit in Rockville Centre Union Free School District. Attendance boundaries change — confirm with the district before relying on an assignment.

What are the property taxes on 638 Portland Ave, Rockville Centre, NY?

The 2025 property tax bill for 638 Portland Ave, Rockville Centre, NY was $513. The county assessed it at $21.

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Assigned schools

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