{
  "name": "Hauppauge, New York",
  "url": "https://longislandtraffic.com/towns/suffolk/hauppauge/",
  "updated": "2026-09-17",
  "publisher": "Long Island Traffic (https://longislandtraffic.com)",
  "methodology": "https://longislandtraffic.com/towns/methodology/",
  "reuse": "Quote with credit and a link to the page URL above. Underlying federal and state datasets are public records.",
  "geography": {
    "slug": "hauppauge",
    "county": "suffolk",
    "censusName": "Hauppauge CDP",
    "geoType": "census-designated place",
    "legalStatus": "hamlet (unincorporated)",
    "geoid": "3632732",
    "gnisId": "2389910",
    "pop2020": 20083,
    "housingUnits2020": 7384,
    "landSqMi": 10.21,
    "waterSqMi": 0.09,
    "densityPerSqMi": 1968,
    "internalPoint": [
      40.82242,
      -73.21081
    ],
    "parentTown": "Islip town",
    "parentTownGeoid": "3610338000",
    "townShares": [
      {
        "name": "Smithtown town",
        "share": 0.518
      },
      {
        "name": "Islip town",
        "share": 0.482
      }
    ]
  },
  "fatalCrashes2010to2024": {
    "period": "2010–2024",
    "crashes": 28,
    "deaths": 28,
    "pedestrianDeaths": 5,
    "bicyclistDeaths": 0,
    "motorcyclistDeaths": 1,
    "crashesWithDriverBac08": 6,
    "multiFatalityCrashes": 0,
    "onLimitedAccessHighways": {
      "crashes": 3,
      "deaths": 3
    },
    "deathsPer100kResidentsPerYear": 9.3,
    "byYear": [
      {
        "year": 2010,
        "crashes": 4,
        "deaths": 4
      },
      {
        "year": 2011,
        "crashes": 3,
        "deaths": 3
      },
      {
        "year": 2012,
        "crashes": 4,
        "deaths": 4
      },
      {
        "year": 2013,
        "crashes": 2,
        "deaths": 2
      },
      {
        "year": 2014,
        "crashes": 2,
        "deaths": 2
      },
      {
        "year": 2015,
        "crashes": 3,
        "deaths": 3
      },
      {
        "year": 2016,
        "crashes": 1,
        "deaths": 1
      },
      {
        "year": 2017,
        "crashes": 2,
        "deaths": 2
      },
      {
        "year": 2018,
        "crashes": 1,
        "deaths": 1
      },
      {
        "year": 2019,
        "crashes": 1,
        "deaths": 1
      },
      {
        "year": 2020,
        "crashes": 0,
        "deaths": 0
      },
      {
        "year": 2021,
        "crashes": 0,
        "deaths": 0
      },
      {
        "year": 2022,
        "crashes": 3,
        "deaths": 3
      },
      {
        "year": 2023,
        "crashes": 2,
        "deaths": 2
      },
      {
        "year": 2024,
        "crashes": 0,
        "deaths": 0
      }
    ],
    "byTimeOfDay": {
      "known": 28,
      "morning6to10": 2,
      "midday10to16": 3,
      "evening16to20": 6,
      "night20to6": 17
    },
    "darkShare": 0.643,
    "topRoads": [
      {
        "name": "Nesconset Highway (NY 347)",
        "slug": null,
        "crashes": 6,
        "deaths": 6
      },
      {
        "name": "Veterans Memorial Highway (NY 454)",
        "slug": null,
        "crashes": 5,
        "deaths": 5
      },
      {
        "name": "Long Island Expressway service road (Express Drive)",
        "slug": null,
        "crashes": 4,
        "deaths": 4
      },
      {
        "name": "Motor Pkwy (CR 67)",
        "slug": null,
        "crashes": 3,
        "deaths": 3
      },
      {
        "name": "Long Island Expressway (I-495)",
        "slug": "lie",
        "crashes": 2,
        "deaths": 2
      },
      {
        "name": "Motor Parkway (CR 67)",
        "slug": null,
        "crashes": 1,
        "deaths": 1
      },
      {
        "name": "Terry Rd",
        "slug": null,
        "crashes": 1,
        "deaths": 1
      },
      {
        "name": "Route 111",
        "slug": null,
        "crashes": 1,
        "deaths": 1
      }
    ],
    "roadOwnership": {
      "period": "2015–2024",
      "crashes": 13,
      "owners": [
        {
          "owner": "State Highway Agency",
          "crashes": 8
        },
        {
          "owner": "Town or Township Highway Agency",
          "crashes": 3
        },
        {
          "owner": "County Highway Agency",
          "crashes": 1
        },
        {
          "owner": "City or Municipal Highway Agency",
          "crashes": 1
        }
      ]
    }
  },
  "allReportedCrashes": {
    "years": [
      "2021",
      "2022",
      "2023",
      "2024"
    ],
    "scope": "parent-town",
    "municipalityCode": "ISLIP",
    "label": "Town of Islip",
    "total": 35004,
    "fatal": 128,
    "injury": 10222,
    "propertyDamageOnly": 24654,
    "byYear": {
      "2021": 8654,
      "2022": 8292,
      "2023": 8881,
      "2024": 9177
    },
    "pedestrian": 422,
    "bicyclist": 335,
    "deer": 91,
    "otherAnimal": 177
  },
  "commute": {
    "workers16plus": 10685,
    "commutersNotWorkingFromHome": 9279,
    "meanTravelMinutes": {
      "value": 29.4,
      "moe": 3.3,
      "lowReliability": false
    },
    "pct60MinPlus": {
      "value": 13.3,
      "moe": 2.2,
      "lowReliability": false
    },
    "pct90MinPlus": {
      "value": 5.9,
      "moe": 1.3,
      "lowReliability": false
    },
    "pctUnder15Min": {
      "value": 24.1,
      "moe": 4,
      "lowReliability": false
    },
    "pctDroveAlone": {
      "value": 74.9,
      "moe": 3,
      "lowReliability": false
    },
    "pctCarpooled": {
      "value": 5.6,
      "moe": 1.5,
      "lowReliability": false
    },
    "pctPublicTransit": {
      "value": 4.8,
      "moe": 1.2,
      "lowReliability": false
    },
    "pctCommuterRail": {
      "value": 4,
      "moe": 1.1,
      "lowReliability": false
    },
    "pctBus": {
      "value": 0.5,
      "moe": 0.4,
      "lowReliability": true
    },
    "pctWalked": {
      "value": 0.2,
      "moe": 0.2,
      "lowReliability": true
    },
    "pctBicycle": {
      "value": 0,
      "moe": 0.1,
      "lowReliability": true
    },
    "pctWorkedFromHome": {
      "value": 13.2,
      "moe": 2.4,
      "lowReliability": false
    },
    "pctLeaveBefore6am": {
      "value": 8,
      "moe": 2,
      "lowReliability": false
    },
    "pctLeaveBefore7am": {
      "value": 26.9,
      "moe": 3.7,
      "lowReliability": false
    },
    "households": 7035,
    "pctNoVehicle": {
      "value": 2.1,
      "moe": 0.9,
      "lowReliability": false
    },
    "pctThreePlusVehicles": {
      "value": 28.9,
      "moe": 3.6,
      "lowReliability": false
    },
    "medianHouseholdIncome": {
      "value": 141378,
      "moe": 8281
    },
    "medianAge": {
      "value": 44.2,
      "moe": 2.2
    }
  },
  "benchmarks": {
    "county": {
      "workers16plus": 766432,
      "commutersNotWorkingFromHome": 674118,
      "meanTravelMinutes": {
        "value": 31.1,
        "moe": 0.4,
        "lowReliability": false
      },
      "pct60MinPlus": {
        "value": 14.1,
        "moe": 0.4,
        "lowReliability": false
      },
      "pct90MinPlus": {
        "value": 6.5,
        "moe": 0.3,
        "lowReliability": false
      },
      "pctUnder15Min": {
        "value": 22.8,
        "moe": 0.6,
        "lowReliability": false
      },
      "pctDroveAlone": {
        "value": 72.1,
        "moe": 0.4,
        "lowReliability": false
      },
      "pctCarpooled": {
        "value": 7.5,
        "moe": 0.3,
        "lowReliability": false
      },
      "pctPublicTransit": {
        "value": 4.8,
        "moe": 0.2,
        "lowReliability": false
      },
      "pctCommuterRail": {
        "value": 3.2,
        "moe": 0.2,
        "lowReliability": false
      },
      "pctBus": {
        "value": 0.6,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctWalked": {
        "value": 1.4,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctBicycle": {
        "value": 0.2,
        "moe": 0,
        "lowReliability": false
      },
      "pctWorkedFromHome": {
        "value": 12,
        "moe": 0.3,
        "lowReliability": false
      },
      "pctLeaveBefore6am": {
        "value": 12,
        "moe": 0.4,
        "lowReliability": false
      },
      "pctLeaveBefore7am": {
        "value": 30.2,
        "moe": 0.6,
        "lowReliability": false
      },
      "households": 512565,
      "pctNoVehicle": {
        "value": 5.1,
        "moe": 0.2,
        "lowReliability": false
      },
      "pctThreePlusVehicles": {
        "value": 28.8,
        "moe": 0.5,
        "lowReliability": false
      },
      "medianHouseholdIncome": {
        "value": 130686,
        "moe": 1707
      },
      "medianAge": {
        "value": 41.7,
        "moe": 0.2
      }
    },
    "state": {
      "workers16plus": 9306567,
      "commutersNotWorkingFromHome": 7916632,
      "meanTravelMinutes": {
        "value": 32.6,
        "moe": 0.1,
        "lowReliability": false
      },
      "pct60MinPlus": {
        "value": 16.8,
        "moe": 0.1,
        "lowReliability": false
      },
      "pct90MinPlus": {
        "value": 5.3,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctUnder15Min": {
        "value": 20.5,
        "moe": 0.2,
        "lowReliability": false
      },
      "pctDroveAlone": {
        "value": 48.8,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctCarpooled": {
        "value": 6.3,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctPublicTransit": {
        "value": 21.6,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctCommuterRail": {
        "value": 1.8,
        "moe": 0,
        "lowReliability": false
      },
      "pctBus": {
        "value": 5.1,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctWalked": {
        "value": 5.6,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctBicycle": {
        "value": 0.8,
        "moe": 0,
        "lowReliability": false
      },
      "pctWorkedFromHome": {
        "value": 14.9,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctLeaveBefore6am": {
        "value": 10.6,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctLeaveBefore7am": {
        "value": 26.3,
        "moe": 0.2,
        "lowReliability": false
      },
      "households": 7722646,
      "pctNoVehicle": {
        "value": 29.2,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctThreePlusVehicles": {
        "value": 11.8,
        "moe": 0.1,
        "lowReliability": false
      },
      "medianHouseholdIncome": {
        "value": 85974,
        "moe": 402
      },
      "medianAge": {
        "value": 39.8,
        "moe": 0.1
      }
    },
    "nation": {
      "workers16plus": 159114094,
      "commutersNotWorkingFromHome": 135071605,
      "meanTravelMinutes": {
        "value": 26.4,
        "moe": 0,
        "lowReliability": false
      },
      "pct60MinPlus": {
        "value": 8.6,
        "moe": 0,
        "lowReliability": false
      },
      "pct90MinPlus": {
        "value": 2.7,
        "moe": 0,
        "lowReliability": false
      },
      "pctUnder15Min": {
        "value": 26,
        "moe": 0,
        "lowReliability": false
      },
      "pctDroveAlone": {
        "value": 68.8,
        "moe": 0.1,
        "lowReliability": false
      },
      "pctCarpooled": {
        "value": 8.5,
        "moe": 0,
        "lowReliability": false
      },
      "pctPublicTransit": {
        "value": 3.2,
        "moe": 0,
        "lowReliability": false
      },
      "pctCommuterRail": {
        "value": 0.3,
        "moe": 0,
        "lowReliability": false
      },
      "pctBus": {
        "value": 1.5,
        "moe": 0,
        "lowReliability": false
      },
      "pctWalked": {
        "value": 2.4,
        "moe": 0,
        "lowReliability": false
      },
      "pctBicycle": {
        "value": 0.4,
        "moe": 0,
        "lowReliability": false
      },
      "pctWorkedFromHome": {
        "value": 15.1,
        "moe": 0,
        "lowReliability": false
      },
      "pctLeaveBefore6am": {
        "value": 14.4,
        "moe": 0,
        "lowReliability": false
      },
      "pctLeaveBefore7am": {
        "value": 32.5,
        "moe": 0,
        "lowReliability": false
      },
      "households": 129227496,
      "pctNoVehicle": {
        "value": 8.4,
        "moe": 0,
        "lowReliability": false
      },
      "pctThreePlusVehicles": {
        "value": 21.9,
        "moe": 0,
        "lowReliability": false
      },
      "medianHouseholdIncome": {
        "value": 80734,
        "moe": 166
      },
      "medianAge": {
        "value": 38.9,
        "moe": 0.1
      }
    }
  },
  "research": {
    "researchedAt": "2026-09-17",
    "identity": {
      "officialName": "Hauppauge",
      "placeType": "hamlet and census-designated place",
      "parentTown": "Town of Smithtown",
      "alsoIn": [
        "Town of Islip"
      ],
      "formerNames": [],
      "nameOrigin": null,
      "founded": null,
      "incorporated": null,
      "gnisId": null,
      "wikidataId": null
    },
    "quickFacts": [
      {
        "label": "Legal status",
        "value": "Unincorporated hamlet tabulated as a single Hauppauge CDP by the Census Bureau (GEOID 3632732); commonly described as straddling the Town of Smithtown and the Town of Islip, though this page could not independently confirm the town-line split",
        "src": [
          2
        ]
      },
      {
        "label": "County government",
        "value": "H. Lee Dennison Building, Suffolk County's main office building, 100 Veterans Memorial Hwy, Hauppauge, NY 11788",
        "src": [
          3
        ]
      },
      {
        "label": "Police",
        "value": "Suffolk County Police Department, Fourth Precinct, 727 Veterans Mem. Hwy, Smithtown, NY 11787",
        "src": [
          4
        ]
      },
      {
        "label": "State highways",
        "value": "NY 454 (Veterans Memorial Highway), running Commack–Hauppauge–west of Patchogue; NY 111 (Hauppauge Road), running to the Smithtown Branch at NY 25/25A",
        "src": [
          5
        ]
      }
    ],
    "timeline": [
      {
        "date": "1908-10",
        "label": "Long Island Motor Parkway opens",
        "text": "The Long Island Motor Parkway — built after a spectator was killed at the 1906 Vanderbilt Cup race forced William K. Vanderbilt II to establish a private road — opened as, in Newsday's words, \"the first concrete highway in the United States\" and \"the first highway designed exclusively for automobiles.\"",
        "src": [
          7
        ]
      }
    ],
    "sections": [
      {
        "id": "history",
        "heading": "History",
        "paragraphs": [
          "The hamlet is tabulated by the Census Bureau as a single Hauppauge census-designated place covering 10.206 square miles of land, and is commonly described as straddling the Town of Smithtown and the Town of Islip, though this page could not independently confirm the town-line split with a mapped source.[2]",
          "Hauppauge is the seat of much of Suffolk County's day-to-day government: the H. Lee Dennison Building, the county's main office building, stands at 100 Veterans Memorial Hwy, Hauppauge, NY 11788, alongside a separate Riverhead County Center listed on the same county website.[3]"
        ]
      },
      {
        "id": "roads",
        "heading": "How the roads got here",
        "paragraphs": [
          "NY 454, known locally as Veterans Memorial Highway, is described in NYSDOT's own touring-route list as running \"(NY 25) Commack, Hauppauge, west of Patchogue (NY 27) – Suffolk County,\" placing Hauppauge directly on its route.[5]",
          "The Long Island Motor Parkway, built by William K. Vanderbilt II after a spectator was killed at the 1906 Vanderbilt Cup Race forced the races off public roads, opened as what a 1998 Newsday retrospective calls \"the first concrete highway in the United States\" and \"the first highway designed exclusively for automobiles,\" using overpasses and bridges to eliminate grade crossings.[7]"
        ]
      },
      {
        "id": "government",
        "heading": "Government, courts and policing",
        "paragraphs": [
          "The Suffolk County Police Department's Fourth Precinct is located at 727 Veterans Mem. Hwy, Smithtown, NY 11787, per the department's own contact listing — an address in Smithtown proper, not the 158 Veterans Memorial Hwy, Hauppauge address commonly repeated for it.[4]",
          "Suffolk County's own government center — the H. Lee Dennison Building at 100 Veterans Memorial Hwy — sits in Hauppauge, though the county's website also lists a Riverhead County Center, so Hauppauge functions as a major seat of county administration alongside, rather than instead of, Riverhead.[3]"
        ]
      }
    ],
    "legalCases": [],
    "landmarks": [
      {
        "name": "H. Lee Dennison Building",
        "designation": "Suffolk County's main county office building; no historic-register listing verified",
        "src": [
          3
        ]
      }
    ],
    "notableFacts": [
      {
        "text": "The Suffolk County Police Department's Fourth Precinct, commonly cited at a Hauppauge address, is actually addressed 727 Veterans Mem. Hwy, Smithtown, NY 11787.",
        "src": [
          4
        ]
      },
      {
        "text": "NY 454, Veterans Memorial Highway, is described by New York State's own touring-route list as running from NY 25 through Commack and Hauppauge to west of Patchogue at NY 27.",
        "src": [
          5
        ]
      },
      {
        "text": "The Long Island Motor Parkway, the private toll road William K. Vanderbilt II built after a fatal 1906 race, was, per a 1998 Newsday retrospective, \"the first highway designed exclusively for automobiles\" in the country.",
        "src": [
          7
        ]
      }
    ],
    "sources": [
      {
        "id": 2,
        "title": "2020 U.S. Gazetteer Files: Places, New York (2020_gaz_place_36.txt)",
        "publisher": "U.S. Census Bureau",
        "url": "https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2020_Gazetteer/2020_gaz_place_36.txt",
        "year": "2020",
        "type": "government"
      },
      {
        "id": 3,
        "title": "Suffolk County Government (homepage / contact)",
        "publisher": "Suffolk County Government",
        "url": "https://www.suffolkcountyny.gov/",
        "year": "2026",
        "type": "government"
      },
      {
        "id": 4,
        "title": "Contact Us",
        "publisher": "Suffolk County Police Department",
        "url": "https://www.suffolkpd.org/Contact-Us",
        "year": "2026",
        "type": "government"
      },
      {
        "id": 5,
        "title": "Official Description of Highway Touring Routes ... in New York State (NY 454 entry)",
        "publisher": "New York State Department of Transportation",
        "url": "https://www.dot.ny.gov/divisions/operating/oom/transportation-systems/repository/2017%20tour-bk.pdf",
        "year": "2017",
        "type": "government"
      },
      {
        "id": 7,
        "title": "The Age of the Auto: Sportsman William K. Vanderbilt II's cup race paves the way",
        "publisher": "Newsday (lihistory.com retrospective series)",
        "url": "https://web.archive.org/web/20050131204720/http://www.newsday.com/community/guide/lihistory/ny-history-hs701a,0,106290,print.story",
        "year": "1998",
        "type": "newspaper"
      },
      {
        "id": 11,
        "title": "Locations across Long Island (location listing including Siena Women's Health Outpatient Diagnostic Pavilion, 50 Route 25A, Smithtown)",
        "publisher": "Catholic Health Long Island",
        "url": "https://www.catholichealthli.org/locations/st-catherine-of-siena-medical-center",
        "year": "2026",
        "type": "institution"
      }
    ]
  },
  "dataSources": {
    "census2020": {
      "name": "U.S. Census Bureau, TIGERweb — 2020 Census tabulation geography (POP100, HU100, AREALAND)",
      "url": "https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/tigerWMS_Census2020/MapServer",
      "retrieved": "2026-09-17"
    },
    "acs": {
      "name": "U.S. Census Bureau, American Community Survey 2020–2024 5-Year Estimates, tables B08303, B08013, B08301, B08302, B08201, B19013, B01002",
      "url": "https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/",
      "period": "2020–2024",
      "retrieved": "2026-09-17",
      "note": "Survey estimates with 90% margins of error. lowReliability = coefficient of variation above 30%."
    },
    "fars": {
      "name": "National Highway Traffic Safety Administration, Fatality Analysis Reporting System (FARS), 2010–2024 national files",
      "url": "https://www.nhtsa.gov/file-downloads?p=nhtsa/downloads/FARS/",
      "retrieved": "2026-09-17",
      "preliminaryYears": [
        2024
      ],
      "note": "Crashes on public trafficways in which a person died within 30 days. No personal identifiers. Placed by reported coordinates into 2020 Census boundaries."
    },
    "nys": {
      "name": "New York State Department of Motor Vehicles, Motor Vehicle Crashes — Case Information: Four Year Window",
      "url": "https://data.ny.gov/Transportation/Motor-Vehicle-Crashes-Case-Information-Four-Year-W/e8ky-4vqe",
      "period": "2021–2024",
      "retrieved": "2026-09-17",
      "note": "Police-reported crashes coded to a town, city or village by the reporting agency. Hamlets are not coded; hamlet pages show the parent town."
    }
  }
}