Suffolk County  »  11766  »  Old Post Rd  »  6 Old Post Rd

6 Old Post Road, Mount Sinai, NY 11766 - Property report

Also known as: 6 Old Post Rd

Property image for 6 Old Post Road, Mount Sinai, NY 11766
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Property type

One Family Year-Round Residence (210)

Year built

1860

Acreage

1.14

General information

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Address
Primary address
6 Old Post Road
ZIP code
11766
County
Suffolk
Village (SWIS code)
472289
Parcel ID
8710928

Owner

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Tax
Tax year
2025-2026
Current property tax
$18,711
Building
Property type
One Family Year-Round Residence (210)
Building sq. ft.
2,952
Year built
1860
Lot
Acreage
1.14

Area overview

Walk score
10 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
4 /100.  Somewhat Bikeable
School district
472207

View more such as transportation, nearby schools and risk designations.

Ownership

Ownership information for 6 Old Post Road, Mount Sinai, NY

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 6 Old Post Road, Mount Sinai, NY 11766

No recently recorded sales for this property.

More about Suffolk County property records.

Title documents

No recently recorded documents for this property.

Tax

Property taxes for 6 Old Post Road, Mount Sinai, NY

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2025-2026
Property tax
$18,711
Recent tax assessments
Market value
$858,491
Assessed value
$4,550

More about Suffolk County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Market value Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $858,491 $4,550 411.221 $18,711 +4.30%
2024-2025 $858,491 $4,550 394.249 $17,938 +3.18%
2023-2024 $842,592 $4,550 382.097 $17,385 +3.44%
2022-2023 $733,871 $4,550 369.378 $16,807 +2.22%
2021-2022 $614,864 $4,550 361.352 $16,442 +2.37%
2020-2021 $590,909 $4,550 352.982 $16,061 +2.16%
2019-2020 $529,070 $4,550 345.531 $15,722 +0.12%
2018-2019 $529,070 $4,550 345.113 $15,703 +1.84%
2017-2018 $505,556 $4,550 338.893 $15,420 +0.54%
2016-2017 $500,000 $4,550 337.064 $15,336 +1.70%
Permits

Permit information for 6 Old Post Road, Mount Sinai, NY

No recently recorded permits for this property.

Neighborhood

Brookhaven residential market stats

Access a detailed real estate market overview of Brookhaven so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Brookhaven and compare it to other neighborhoods in Suffolk.

Median sale price

$575,000

4.5% Y-o-Y

Median price/sq. ft.

$348

2.4% Y-o-Y

Suffolk county median sale price

$677,000

5.9% Y-o-Y

Risk

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FEMA flood zones

FEMA flood zones
AE, X

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 6 Old Post Road, Mount Sinai, NY 11766 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Mount Sinai Middle School 5 Public 5-8 667 0.82
Port Jefferson Elementary School 5 Public PK, K-5 364 1.24
Port Jefferson Elementary School 5 Public PK, K-5 364 1.24
Maryhaven Center Of Hope NR Private 47 1.43
Mount Sinai Elementary School 7 Public K-4 659 1.66
Our Lady of Wisdom Regional School NR Private PK-8 74 1.98
Our Lady of Wisdom Regional School NR Private PK-8 74 1.98
Sound Beach School 4 Public 3-5 473 2.09
John F Kennedy Middle School 4 Public 4, 6-8 822 2.39
Andrew Muller Primary School NR Public K-2 468 2.46
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
Mount Sinai Middle School 5 Public 5-8 667 0.82
Maryhaven Center Of Hope NR Private 47 1.43
Our Lady of Wisdom Regional School NR Private PK-8 74 1.98
Port Jefferson Middle School 7 Public 6-8 222 2.08
North Country Road School 5 Public 6-8 534 2.09
John F Kennedy Middle School 4 Public 4, 6-8 822 2.39
The Laurel Hill School NR Private PK-8 321 3.52
Paul J Gelinas Junior High School 8 Public 7-9 647 4.77
Rocky Point Middle School 4 Public 6-8 638 4.83
Selden Middle School 4 Public 6-8 1,058 5.17
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Mount Sinai High School 9 Public 9-12 720 0.66
Maryhaven Center Of Hope NR Private 47 1.43
Earl L Vandermeulen High School 9 Public 9-12 323 2.08
Miller Place High School 9 Public 9-12 820 2.47
Comsewogue High School 6 Public 9-12 1,153 2.77
Ward Melville Senior High School 10 Public 9-12 1,507 3.19
Sunshine Alternative Education Center NR Private 10-12 10 3.85
Rocky Point High School 7 Public 9-12 923 4.74
The Stony Brook School NR Private 7-12 412 5.47
Newfield High School 8 Public 9-12 1,559 5.47

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 6 Old Post Road, Mount Sinai, NY

140 MT Sinai Ave, Mount Sinai 60 N Country Rd, Mount Sinai 555 Canal Rd, Mount Sinai 123 MT Sinai Ave, Mount Sinai 48 Birch Hill Rd, Mount Sinai 49 N Country Rd, Mount Sinai 111 N Country Rd, Mount Sinai 47 N Country Rd, Mount Sinai 31 Ashland St, Mount Sinai 4 Old Post Rd, Mount Sinai 8 Old Post Rd, Mount Sinai 109 N Country Rd, Mount Sinai 188 MT Sinai Ave, Mount Sinai 179 MT Sinai Ave, Mount Sinai 119 MT Sinai Ave N, Mount Sinai 42 Birch Hill Rd, Mount Sinai 88 Old Post Rd, Mount Sinai 559 Canal Rd, Mount Sinai 529 MT Sinai CRM Rd, Mount Sinai 6 Ashland St, Mount Sinai

Nearby ZIP codes for 6 Old Post Road, Mount Sinai, NY

11720, Suffolk County, NY 11727, Suffolk County, NY 11733, Suffolk County, NY 11738, Suffolk County, NY 11742, Suffolk County, NY 11755, Suffolk County, NY 11763, Suffolk County, NY 11764, Suffolk County, NY 11776, Suffolk County, NY 11777, Suffolk County, NY 11778, Suffolk County, NY 11784, Suffolk County, NY 11786, Suffolk County, NY 11789, Suffolk County, NY 11790, Suffolk County, NY 11953, Suffolk County, NY 11961, Suffolk County, NY 11980, Suffolk County, NY

Frequently asked questions

What is the year built for 6 Old Post Road, Mount Sinai, NY 11766?

The development at 6 Old Post Road, Mount Sinai, NY 11766 was built in 1860.

What is the total square footage of 6 Old Post Road, Mount Sinai, NY 11766?

6 Old Post Road, Mount Sinai, NY 11766 has a total of 2,952 square feet.

What is the assessed value of 6 Old Post Road, Mount Sinai, NY 11766?

6 Old Post Road, Mount Sinai, NY 11766 is currently assessed at $4,550.

What are the property taxes for 6 Old Post Road, Mount Sinai, NY 11766?

The property taxes for 6 Old Post Road, Mount Sinai, NY 11766 total $18,710.

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