Selden, New York
33 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 11784. The Survey maps it on the Patchogue quadrangle. 21,262 people lived here at the 2020 count. It stands 89 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.


Population over time
2 figuresSelden grew from 19,851 to 21,262 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 | 19,851 | |
| 2020 | 21,262 | +1,411 (+7%) |
Topographic sheets covering this place
16 surveys from 33 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 Patchogue quadrangle1:24000
- 1949 USGS New York quadrangle1:250000
- 1954 USGS New York quadrangle1:250000, 2 printings
- 1956 USGS Patchogue 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 Patchogue quadrangle1:24000, 2 printings
- 1969 USGS New York quadrangle1:250000
- 1984 USGS Long Island West quadrangle1:100000, 2 printings
Fires near this place
1,628 since 2000Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1,628 fires within 5 miles of Selden between 2000 and 2020, burning about 740 acres in total. 97 started naturally. 185 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 | 1233 |
| Arson/incendiarism | 185 |
| Natural | 97 |
| Smoking | 38 |
| Debris and open burning | 36 |
| Equipment and vehicle use | 18 |
| Recreation and ceremony | 10 |
| Misuse of fire by a minor | 6 |
| Power generation/transmission/distribution | 4 |
| 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 2017 | Debris and open burning | 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 |
| 8 September 2020 | Debris and open burning | under an acre | Fire Department of New York | NA |
| 8 September 2005 | 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 2018 | Debris and open burning | under an acre | Fire Department of New York | N/A |
| 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
5 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 5 workings within 5 miles of Selden: 2 past producers, 2 producers, 1 plant. 3 still produce. What was taken out: Sand and Gravel, Construction, Titanium, Metal. 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 |
|---|---|---|---|---|
| Port Jefferson Station B Plant | Titanium, Metal | Plant | ||
| Brookhaven Aggregates Pit | Sand and Gravel, Construction | Producer | ||
| Brookhaven Pit and Mill | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Roanoke Mabro Sand and Gravel Pit | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Roanoke Marboro Sand and Gravel | Sand and Gravel, Construction | Producer |
Storms near this place
9 since 1998Regional context, not property-specific evidence. The National Weather Service names Selden in 9 storm reports between 1998 and 2024: 4 flash flood, 2 thunderstorm wind, 2 hail, 1 tornado. No death or injury is recorded in these reports. 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 |
|---|---|---|---|---|
| August 2024 | Flash Flood | Selden | $20,000 | Basement flooding with 4 to 5 feet of water and rising on Evergreen Drive with the fire department responding. |
| July 2022 | Thunderstorm Wind | Selden | $3,000 | Pictures of large tree limbs down on road. Power was lost. |
| April 2017 | Thunderstorm Wind | Selden | $1,000 | A tree was reported down on South Bicycle Path near Selden. |
| August 2024 | Flash Flood | Selden | - | Fire department dispatched to close Boyle Road at Wyandotte Street due to flooding. |
| August 2024 | Flash Flood | Selden | - | Report of basement flooding and car stuck in flooding with water in the vehicle on Adirondack Drive. |
| July 2022 | Hail | Selden | - | Public report of 1 inch hail. |
| July 2022 | Hail | Selden | - | Public reported 1.25 inch hail. |
| August 2014 | Flash Flood | Selden | - | A car was fully submerged in flood waters at the intersection of Blue Point Rd. and Middle Country Rd. in Selden. |
| June 1998 | Tornado (F0) | Selden | - | 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 |
|---|---|---|---|
| Coram | 1.8 miles | 33 | |
| Farmingville | 2.5 miles | 33 | |
| Terryville | 3.3 miles | 32 | |
| Centereach | 3.4 miles | 33 | |
| Gordon Heights | 3.5 miles | 20 | |
| Holtsville | 3.6 miles | 33 | |
| Medford | 3.9 miles | 33 | |
| Port Jefferson Station | 4.1 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 Selden | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2889137 | 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 964814. 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.















