Brentwood, NY — Crash Data, Roads, History & Law

Brentwood is an unincorporated hamlet in the Town of Islip, Suffolk County, New York, with 62,387 residents at the 2020 Census. Federal crash records show 84 fatal crashes that killed 90 people within its boundaries from 2010 through 2024 — 35 of them on foot. Suffolk Ave (CR 100) accounted for more of those deaths (13) than any other road.

Long Island Town Fact Book · Updated · Sources & method

Brentwood at a glance

Status
Hamlet (unincorporated; census-designated place)
Town
Islip
County
Suffolk County
Population (2020 Census)
62,387[C]
Housing units (2020)
14,127
Land area
10.95 sq mi
Density
5,697 people per sq mi
Traffic deaths, 2010–2024
90[A]
ZIP Code
11717
Founded / settled
Late 1850, when Josiah Warren and Stephen Pearl Andrews purchased a 90-acre tract in the Pine Barrens section of the Town of Islip and founded the community of Modern Times[1]
Former names
Thompson's Station, Modern Times[1][1]
Police
Suffolk County Police Department, Third Precinct, 1630 5th Ave, Bay Shore, NY 11706[3][4]
Prior written notice law
Code of the Town of Islip, Ch. 47A "Streets and Sidewalks," Art. I, § 47A-3 "Liability of Town" (added October 3, 1978)[5]
Institution
Pilgrim Psychiatric Center (New York State Office of Mental Health), 998 Crooked Hill Road, West Brentwood, NY 11717-1087; (631) 761-3500[6]
Main roads and owners
Long Island Expressway / I-495 (state); Sagtikos State Parkway, NY 908K (state, Office of Parks, Recreation and Historic Preservation); local streets (Town of Islip)[8]
Census geography
Brentwood CDP · GEOID 3608026 · GNIS 2389235
Coordinates
40.7839°N, 73.2522°W

Hamlets in New York have no legal boundary or government of their own. Figures here use the Census Bureau's census-designated place, the standard statistical outline for the community; local usage of the name can be wider or narrower.

Name:The village's leaders chose the name of Brentwood, Essex, a London suburb, at a meeting on September 7, 1864, during the Civil War. According to Roger Wunderlich, founding editor of the Long Island Historical Journal, the choice honored longtime resident Henry Edger and his wife, Milliscent Hobson, who had married in that English town before emigrating -- the Long Island Press reports that Wunderlich wrote the naming recognized "their ten years of civic service to the village" rather than sentimental attachment to the English town itself.[1]

Fatal crashes in Brentwood, 2010–2024

From January 1, 2010 through December 31, 2024, 90 people died in 84 crashes on public roads inside Brentwood, according to the federal Fatality Analysis Reporting System.[A] Pedestrians account for 35 of those deaths (39%). The deadliest year was 2015, with 10 deaths.

Fatal crashes
84
People killed
90
Pedestrians
35
Bicyclists
5
Motorcyclists
10
Vehicle occupants
40
Traffic deaths in Brentwood by year, 2010–2024
8 ’10 2 ’11 8 ’12 9 ’13 5 ’14 10 ’15 5 ’16 7 ’17 5 ’18 4 ’19 5 ’20 5 ’21 3 ’22 8 ’23 6 ’24

2024 figures come from NHTSA's Annual Report File and may be revised.

View the chart as a table
YearFatal crashesDeaths
201068
201122
201288
201379
201455
20151010
201655
201777
201845
201944
202055
202145
202233
202388
202466

Roads where people died

RoadCrashesDeaths
Suffolk Ave (CR 100) 13 13
Long Island Expressway service road (Express Drive) 8 8
Washington Ave 7 7
Crooked Hill Rd (CR 13) 6 7
Route 111 6 6
Wicks Rd (CR 13) 6 6
Long Island Expressway (I-495) 5 5
2nd Ave 3 4

Road names as recorded by police and normalised to common Long Island names.

When and where

  • Of the 84 crashes with a recorded time, 48 happened between 8 p.m. and 6 a.m., 19 between 4 and 8 p.m., 10 between 10 a.m. and 4 p.m., and 7 between 6 and 10 a.m.
  • 66% happened in darkness.
  • 7 of the 90 deaths were on expressways or parkways; 83 were on arterials and local streets.
  • 6 crashes killed more than one person.
  • In at least 11 crashes, a driver had a reported blood-alcohol concentration of .08 or higher. This counts known test results only; NHTSA's official alcohol estimates, which impute untested drivers, are higher.

Who owns the roads where they happened (2015–2024)

FARS has recorded the owner of the roadway since 2015. Of the 56 fatal crashes in Brentwood since then:

  • Town roads 28 (50%)
  • County roads 17 (30%)
  • State highways 10 (18%)
  • City or village streets 1 (2%)

Ownership matters in New York because claims against a county, town, city or village generally require a notice of claim within 90 days (General Municipal Law § 50-e), while claims against the State are brought in the Court of Claims under Court of Claims Act § 10. This is general information, not legal advice.

Rate: 9.6 traffic deaths per 100,000 residents per year, against 9.1 for Suffolk County. This is a resident-based rate, not a measure of how risky the roads are to drive: crashes are counted where they happen, not where the people involved live, so a small community crossed by a major highway shows a high rate.

The 15 most recent fatal crashes

DateTimeRoadDeathsWho diedLight
* 5 p.m. Suffolk Ave at Eisenhower Ave 1 Pedestrian dark
* 12 a.m. Route 111 1 Vehicle occupant dark
* 7 p.m. Wicks Rd (CR 13) 1 Motorcyclist daylight
* 8 p.m. Wicks St (CR 13) 1 Pedestrian dark
* 11 p.m. Suffolk Ave (CR 100) at Adams Ave 1 Pedestrian dark
* 5 a.m. Wicks Rd 1 Pedestrian dark
10 p.m. Crooked Hill Rd (CR 13) 1 Pedestrian dark
2 a.m. Community College Dr at Crooked Hill Rd 1 Vehicle occupant dark
11 a.m. Spur Dr N 1 Motorcyclist daylight
4 a.m. Suffolk Ave (CR 100) at Route 111 1 Pedestrian daylight
6 a.m. Long Island Expressway service road (Express Drive) at Washington Ave 1 Vehicle occupant dawn
4 a.m. Suffolk Ave (CR 100) at Fulton St 1 Vehicle occupant dark
12 a.m. Suffolk Ave (CR 100) 1 Pedestrian dark
6 p.m. Wicks Rd (CR 13) 1 Pedestrian dark
10 p.m. Motor Pkwy (CR 67) at Wicks Rd (CR 7) 1 Pedestrian dark

FARS contains no names or personal identifiers. * 2024 records are preliminary. Download all 84 records (CSV) · How this was compiled

Recent Brentwood Incident Reports

Updated continuously from 511NY, NYSP, NCPD, and SCPD feeds — all Long Island reports.

All reported crashes in the Town of Islip, 2021–2024

New York's crash file codes each crash to a town, city or village — never to a hamlet — so the finest official count that covers Brentwood is for the Town of Islip, which contains it. Police reported 35,004 crashes there from 2021 through 2024 — about 24 a day. 10,222 (29.2%) injured someone and 128 were fatal. [D]

Police-reported crashes, Town of Islip
2021202220232024Total
8,6548,2928,8819,17735,004
Injury crashes
10,222
Fatal crashes
128
Struck a pedestrian
422
Struck a bicyclist
335
Struck a deer
91

Counts are crashes, not people. The municipality is entered by the reporting police agency, and coding is less consistent for small villages, so compare places with care.

How Brentwood gets to work

The Census Bureau did not publish 2020–2024 ACS 5-year estimates for this place. The figures below are for Islip, the town that contains Brentwood.

Commuters in Islip (town) travel an average of 28.3 minutes each way, 2.8 minutes shorter than the Suffolk County average (the national average is 26.4 minutes). About 74.4% of workers drive alone, and 2.2% ride the railroad. [B]

Commuting and vehicle access, 2020–2024 (American Community Survey 5-year estimates)
Measure Islip (town) Suffolk County New York State United States
Average one-way commute 28.3 min ±0.8 31.1 min 32.6 min 26.4 min
Commute 60 minutes or longer 10.7% ±0.7 14.1% 16.8% 8.6%
Commute under 15 minutes 23.2% ±1.1 22.8% 20.5% 26%
Drive alone 74.4% ±0.9 72.1% 48.8% 68.8%
Carpool 9.6% ±0.8 7.5% 6.3% 8.5%
Commuter rail (LIRR) 2.2% ±0.3 3.2% 1.8% 0.3%
Bus 0.5% ±0.1 0.6% 5.1% 1.5%
Walk 0.8% ±0.2 1.4% 5.6% 2.4%
Work from home 8.3% ±0.5 12% 14.9% 15.1%
Leave home before 6 a.m. 12.1% ±0.7 12% 10.6% 14.4%
Households with no vehicle 6.3% ±0.8 5.1% 29.2% 8.4%
Households with three or more vehicles 31.4% ±1 28.8% 11.8% 21.9%

Survey estimates for 172,804 workers aged 16 and over; ± values are 90% margins of error. Travel-time rows exclude people who work from home.

Notable facts about Brentwood

  • Brentwood began in late 1850 as Modern Times, a utopian colony founded by Josiah Warren and Stephen Pearl Andrews on a 90-acre tract, with no jail, no police, no judge and no money.[1]
  • Modern Times was renamed Brentwood on September 7, 1864, honoring resident Henry Edger and his wife for a decade of civic service rather than for sentimental attachment to their English hometown of the same name.[1]
  • Suffolk County's first brass band was formed at the Modern Times colony, now Brentwood.[1]
  • Pilgrim State Hospital, which opened in Brentwood on October 1, 1931 with 100 patients on 825 acres, grew to a peak population of 13,875 patients in 1954 and was, in its own agency's words, "the largest facility of its kind in the world when it was built."[6]
  • In 1996-97, both Kings Park Psychiatric Center and Central Islip Psychiatric Center were consolidated onto the Pilgrim campus in Brentwood and merged into Pilgrim Psychiatric Center.[6]
  • The New York Court of Appeals' 1989 decision in Town of Islip v. Caviglia upheld the Town's zoning ordinance confining adult businesses to industrial districts against a First Amendment challenge.[10]

History

Late in 1850, Josiah Warren, a 53-year-old "philosophical anarchist," and Stephen Pearl Andrews, a 37-year-old polymath and real-estate attorney, took the Long Island Rail Road to Thompson's Station -- a whistle stop the Long Island Press locates at what are now Fifth Avenue and Suffolk Avenue -- to inspect Pine Barrens land in the Town of Islip owned by a Dr. Edward Fenn Peck of Smithtown.[1] They bought a 90-acre tract and founded a colony they named Modern Times, built on Warren's theory of individual sovereignty and inspired in part by Robert Owen's New Harmony experiment and Charles Fourier's cooperative-community theories.[1]

The settlement, which the Long Island Press reports housed "at most 150 residents" who called themselves "sovereigns," ran on Warren's system of labor-note currency rather than money, hosted Suffolk County's first brass band, and became, through resident Henry Edger's correspondence with the French philosopher Auguste Comte, an American center of the philosophy known as positivism.[1] Visiting in the summer of 1857 -- the year the community's octagonal schoolhouse was built and the colony reached its height, shortly before that year's financial panic -- the traveling clergyman Moncure Daniel Conway wrote that at Modern Times "marriage was abolished, and families arranged themselves according to the law of attraction," and that "free love" was "placed in the same category with all other freedoms."[1]

On September 7, 1864, during the Civil War, the community's leaders voted to rename the village Brentwood, after Brentwood, Essex, a London suburb. According to the Long Island Press's account of historian Roger Wunderlich's research, the name change did not reflect sentimental attachment to the English town so much as a wish to honor longtime resident Henry Edger and his wife, Milliscent Hobson, who had married there before emigrating, for "their ten years of civic service to the village."[1] The former schoolhouse continued in educational use, first for Modern Times and then Brentwood, until 1906, and the Long Island Press reports it is listed on the National Register of Historic Places.[1]

Decades later, in 1931, the community became home to Pilgrim State Hospital, a state psychiatric institution the New York State Office of Mental Health describes as having been "the largest facility of its kind in the world when it was built," opening on 825 acres with 100 patients and peaking at 13,875 patients in 1954.[6] The hospital, later renamed Pilgrim Psychiatric Center, absorbed the Town of Smithtown's Kings Park Psychiatric Center and the Central Islip Psychiatric Center when both were consolidated onto its campus in the fall of 1996 and merged into it under one name the following fall; it remains an active state facility at 998 Crooked Hill Road, West Brentwood.[6]

How the roads got here

The Long Island Expressway forms Brentwood's northern edge; New York State's own bridge-inventory documentation records that "Washington Avenue: crosses I 495 in the Town of Islip, hamlet of Brentwood," confirming the LIE's route through the hamlet as a state highway (I-495).[8] The Sagtikos State Parkway, carried in the state's official touring-route inventory under the reference designation NY 908K, is administered by the state's Office of Parks, Recreation and Historic Preservation rather than the Department of Transportation, reflecting its origin and continued classification as a parkway.[8]

Law and legal history

Modern Times was, by design, a community without formal law enforcement or courts: the Long Island Press's account of the colony states plainly that "[t]here was no jail, no police, no judge and no money," and quotes Conway's 1857 observation that residents "parted without giving any trouble to the courts of common pleas" because the community rejected the state's authority "either to unite or separate" couples.[1] That experiment ended with the 1864 renaming to Brentwood, and the hamlet has been governed since as an ordinary unincorporated part of the Town of Islip, subject to New York and Suffolk County law like its neighbors.[1]

Because Brentwood is an unincorporated hamlet of the Town of Islip, it is also subject to the Town's own local laws, including its zoning code. In Town of Islip v. Caviglia, a case that arose from the Town's regulation of adult businesses townwide, the New York Court of Appeals upheld (5-2, with two dissents) a Town of Islip zoning ordinance confining "adult" bookstores, theaters and similar uses to Industrial I districts and phasing out nonconforming uses through amortization, holding "that a municipality may, under the circumstances presented, restrict adult business uses to certain areas of the community without violating the State Constitution."[10] The Town's ordinance traced to a 1970s planning study of the effects of adult businesses in the Town's several hamlet downtowns, including Brentwood's.[10]

Suits alleging a road or sidewalk defect in Brentwood are governed by the Town of Islip's prior-written-notice law. Chapter 47A of the Code of the Town of Islip, adopted by the Town Board on June 8, 1972, provides in § 47A-3, "Liability of Town" (added October 3, 1978), that no civil action for injury caused by a defective, unsafe or obstructed highway, street, sidewalk, or similar Town-owned property may be maintained against the Town of Islip "unless written notice of such... condition... was actually given to the Town Clerk or Commissioner of Public Works" and the Town failed to act on it within a reasonable time.[5]

Cases of record

Town of Islip v. Caviglia, 73 N.Y.2d 544, 542 N.Y.S.2d 139, 540 N.E.2d 215 (1989)[10]
New York Court of Appeals, 1989. Townwide zoning ordinance regulating adult businesses, challenged by the operators of an adult bookstore in the Town of Islip (which includes the hamlet of Brentwood).Affirmed (as modified below) that the Town's ordinance restricting adult uses to Industrial I zones, developed after a study of adult businesses in the Town's hamlet downtowns and phased in through amortization of nonconforming uses, was a valid time-place-manner regulation that did not violate the State or Federal constitutions.

Each summary describes the cited decision only. Later appellate history is noted where we found it, but it has not been checked systematically — confirm a case's current status with a citator before relying on it. General information, not legal advice.

Government, courts and policing

The Suffolk County Police Department's Third Precinct, headquartered at 1630 5th Ave, Bay Shore, NY 11706, serves "Bay Shore, Baywood, Brentwood, Brightwaters, Islip, Central Islip, East Islip, West Islip, and Islip Terrace," according to the precinct's own description of its coverage area.[3][4]

As an unincorporated hamlet, Brentwood is subject to the Town of Islip's own local laws -- including the Town's prior-written-notice ordinance (Code of the Town of Islip § 47A-3) and its zoning code, upheld townwide in Town of Islip v. Caviglia -- rather than a village-level code of its own.[5][10]

Landmarks and listed places

  • Modern Times / Brentwood octagonal schoolhouse (built 1857)[1]

Brentwood timeline

  1. Modern Times founded. Late in 1850, Josiah Warren and Stephen Pearl Andrews bought a 90-acre tract of Pine Barrens land, arriving by Long Island Rail Road at Thompson's Station, and founded the utopian community of Modern Times.[1]
  2. Octagonal schoolhouse built; colony peaks. The community's octagonal schoolhouse was built in 1857, the year visiting clergyman Moncure Daniel Conway found the colony at its height, shortly before a financial panic struck later that year.[1]
  3. Renamed Brentwood. The village's leaders met and voted to rename Modern Times as Brentwood, after the English town of Brentwood, Essex.[1]
  4. Schoolhouse's original use ends. The 1857 octagonal schoolhouse served as the community's school, first for Modern Times and then for Brentwood, until 1906.[1]
  5. Pilgrim State Hospital created. Pilgrim State Hospital was created by the New York State Legislature.[6]
  6. Pilgrim State Hospital opens. Pilgrim State Hospital opened on 825 acres in Brentwood with 100 patients; the New York State Office of Mental Health states it "was the largest facility of its kind in the world when it was built."[6]
  7. Pilgrim's peak population. Pilgrim's patient census reached its peak of 13,875 in 1954.[6]

Major roads in Brentwood

RoadRouteMaintained byIn Brentwood
Long Island Expressway [8] I-495 New York State forms northern edge / crosses
Sagtikos State Parkway [8] NY 908K New York State (Office of Parks, Recreation and Historic Preservation) runs through

Emergency Resources

Hospitals

  • Good Samaritan Hospital Medical Center (Catholic Health) — 1000 Montauk Highway, West Islip, NY 11795 (Level I adult trauma center and Level II pediatric trauma center per the New York State Department of Health's trauma center list.)
  • South Shore University Hospital (Northwell Health; formerly Southside Hospital) — 301 East Main Street, Bay Shore, NY 11706 — (631) 968-3000 (Level I adult trauma center per the New York State Department of Health's trauma center list. Now branded South Shore University Hospital, not Southside Hospital.)

Police

  • Suffolk County Police Department, Third Precinct — 1630 5th Ave, Bay Shore, NY 11706 — (631) 852-6000 (department main line); (631) 854-8308 (COPE/Community Liaison Officer) (Covers Brentwood along with Bay Shore, Baywood, Brightwaters, Islip, Central Islip, East Islip, West Islip and Islip Terrace, per the precinct's own page. Emergencies: 911.)

Courts

  • Suffolk County District Court — 400 Carleton Ave, Central Islip, NY 11722 | (631) 853-7500
  • Islip Town Justice Court — 401 Main St, Islip, NY 11751 | (631) 224-5570
  • Suffolk County Supreme Court — 1 Court St, Riverhead, NY 11901 | (631) 852-2332

Local Driver Services in Brentwood

Practical resources for Brentwood drivers — tire shops, gas prices, and live traffic conditions.

Safety Resources

Frequently Asked Questions

What should I do after a car accident in Brentwood, NY?

Call 911 immediately. SCPD's 3rd Precinct will respond. Document the scene with photos and video if possible. Exchange insurance information and gather witness contact details. File a police report and notify your insurance company. New York's no-fault law requires your PIP insurance to cover initial medical expenses.

Which roads are most dangerous in Brentwood?

The LIE through Brentwood sees frequent high-speed collisions, particularly near Exit 53 (Sagtikos Parkway). Crooked Hill Road carries heavy north-south commuter traffic with speed-limit compliance issues. Commack Road and Wicks Road are secondary high-crash corridors with commercial driveway conflicts.

Where is the nearest hospital to Brentwood?

Good Samaritan Hospital Medical Center in West Islip is the closest major emergency facility, approximately fifteen minutes south via the Sagtikos Parkway. Southside Hospital in Bay Shore provides additional emergency services. For major trauma, Stony Brook University Hospital is accessible via the LIE.

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Data: machine-readable fact sheet (JSON) · fatal-crash records (CSV) · methodology and limits

References

Datasets

  1. [A] National Highway Traffic Safety Administration, Fatality Analysis Reporting System (FARS), 2010–2024 national files. Retrieved September 17, 2026.Crashes on public trafficways in which a person died within 30 days. No personal identifiers. Placed by reported coordinates into 2020 Census boundaries.
  2. [B] U.S. Census Bureau, American Community Survey 2020–2024 5-Year Estimates, tables B08303, B08013, B08301, B08302, B08201, B19013, B01002. Retrieved September 17, 2026.Survey estimates with 90% margins of error. lowReliability = coefficient of variation above 30%.
  3. [C] U.S. Census Bureau, TIGERweb — 2020 Census tabulation geography (POP100, HU100, AREALAND). Retrieved September 17, 2026.
  4. [D] New York State Department of Motor Vehicles, Motor Vehicle Crashes — Case Information: Four Year Window. Retrieved September 17, 2026.Police-reported crashes coded to a town, city or village by the reporting agency. Hamlets are not coded; hamlet pages show the parent town.

Sources for history, roads and law

  1. [1] Long Island Press. Where Brentwood Is Today Once Stood Long Island's Own Utopia (2014). News report.
  2. [3] Suffolk County Police Department. Third Precinct (2026). Government record.
  3. [4] Suffolk County Police Department. Contact Us (Precinct Commanding Officer addresses) (2026). Government record.
  4. [5] Town of Islip / General Code (eCode360). Chapter 47A, Streets and Sidewalks (2026). Government record.
  5. [6] New York State Office of Mental Health. Pilgrim Psychiatric Center: History (2026). Government record.
  6. [8] New York State Department of Transportation, Office of Traffic Safety & Mobility. Official Description of Highway Touring Routes, Bicycle Touring Routes, Scenic Byways, & Commemorative/Memorial Designations in New York State (2017). Government record.
  7. [10] Caselaw Access Project (Harvard Law School Library), New York Reports, 2d Series, vol. 73. Town of Islip v. Caviglia, 73 N.Y.2d 544 (1989) (1989). Court decision.
  8. [11] New York State Department of Health. New York State Trauma Centers (n.d.). Government record.
  9. [12] Northwell Health. South Shore University Hospital (home page) (2026). Institution.

Sources opened and checked September 17, 2026.