Port Jefferson, New York
32 topographic sheets cover this place, the earliest surveyed in 1902 and the latest in 1984. It stands in Brookhaven town. It lies in ZIP code area 11777. It lies near Mount Misery. The Survey maps it on the Port Jefferson quadrangle. 7,962 people lived here at the 2020 count. It stands 12 feet above sea level.
Then and now
1902 to 1984The same ground, surveyed 82 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


On record in Port Jefferson
Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.
On the National Register 3 records
Bayles Shipyardlisted 2000
First National Bank of Port Jeffersonlisted 2005
Port Jefferson Village Historic Districtlisted 2005
Population over time
2 figuresPort Jefferson grew from 7,750 to 7,962 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 7,750 | |
| 2020 | 7,962 | +212 (+3%) |
Topographic sheets covering this place
16 surveys from 32 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1902 USGS Setauket quadrangle1:62500
- 1904 USGS Islip quadrangle1:125000, 5 printings
- 1904 USGS Setauket quadrangle1:62500, 7 printings
- 1919 USGS Setauket quadrangle1:62500
- 1942 USGS Islip quadrangle1:125000
- 1947 USGS Port Jefferson quadrangle1:24000
- 1949 USGS New York quadrangle1:250000
- 1954 USGS New York quadrangle1:250000, 2 printings
- 1955 USGS Port Jefferson quadrangle1:24000, 2 printings
- 1956 USGS Setauket quadrangle1:62500
- 1957 USGS New York quadrangle1:250000
- 1958 USGS New York quadrangle1:250000, 3 printings
- 1960 USGS New York quadrangle1:250000, 2 printings
- 1967 USGS Port Jefferson quadrangle1:24000
- 1969 USGS New York quadrangle1:250000
- 1984 USGS Long Island West quadrangle1:100000, 2 printings
Fires near this place
846 since 2000Regional context, not property-specific evidence. The federal wildfire occurrence database lists 846 fires within 5 miles of Port Jefferson between 2000 and 2020, burning about 311 acres in total. 46 started naturally. 68 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 668 |
| Arson/incendiarism | 68 |
| Natural | 46 |
| Smoking | 24 |
| Equipment and vehicle use | 16 |
| Debris and open burning | 12 |
| Misuse of fire by a minor | 6 |
| Power generation/transmission/distribution | 3 |
| Recreation and ceremony | 2 |
| Other causes | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 9 September 2019 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | N/A |
| 9 September 2015 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | N/A |
| 9 September 2007 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
| 9 September 2005 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
| 9 September 2005 | Natural | under an acre | Fire Department of New York | not named |
| 8 September 2009 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
| 8 September 2000 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
| 7 September 2007 | Missing data/not specified/undetermined | under an acre | Fire Department of New York | not named |
Settlements close enough to share some of these fires:
Mines and quarries near this place
4 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 4 workings within 5 miles of Port Jefferson: 1 past producer, 1 plant, 1 unknown, 1 producer. 2 still produce. What was taken out: Sand and Gravel, Construction, Titanium, Metal, Titanium. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Lawrence Aviation Industries Plant | Titanium | Unknown | ||
| Port Jefferson Station B Plant | Titanium, Metal | Plant | ||
| Suffolk Materials Pit | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Suffolk Materials Pit | Sand and Gravel, Construction | Producer |
Storms near this place
5 since 1999Regional context, not property-specific evidence. The National Weather Service names Port Jefferson in 5 storm reports between 1999 and 2024: 2 flash flood, 1 hail, 1 lightning, 1 thunderstorm wind. The reports record 1 injury. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| May 2002 | Lightning | Port Jefferson | 1 hurt | As a line of thunderstorms moved southeast, lightning struck a house. A fire ignited that caused some damage and one person in the house suffered minor injuries. |
| August 2015 | Thunderstorm Wind | Port Jefferson | $10,000 | Multiple trees were reported down throughout the Village. |
| August 2024 | Flash Flood | Port Jefferson | - | Fire department closing Edgewood Ave due to rising flood waters. Road is impassable. |
| September 2018 | Flash Flood | Port Jefferson | - | Route 25A was closed due to flooding in Port Jefferson between Sheep Pasture Road and Route 112/Patchogue Road. |
| August 1999 | Hail | Port Jefferson | - | no account filed |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Poquott | 0.8 miles | 32 | |
| Belle Terre | 0.9 miles | 32 | |
| Crystal Brook | 1.4 miles | 32 | |
| Port Jefferson Station | 1.9 miles | 32 | |
| East Setauket | 2.0 miles | 32 | |
| Mount Sinai | 2.1 miles | 32 | |
| Terryville | 2.6 miles | 32 | |
| Setauket | 2.7 miles | 32 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on Port Jefferson | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2104746 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 960968. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.















