Area guideDeer Park
Water Damage Restoration Help in Deer Park, NY
Connect with a local specialist now.
The hamlet of Deer Park · Town of Babylon
Water in the basement, a burst pipe, or sewage backing up into the house? Call and we'll connect you with a local specialist who covers Deer Park, even if you don't know the cause yet.
Water doesn't stay where it lands. It soaks into drywall, insulation and flooring, and mold can start within 24 to 48 hours.
- You call Tell us what you're seeing
- We connect you With a local specialist covering all of Deer Park
- They arrange A visit with you
None of the 9,765 addresses in Deer Park is in FEMA's flood zone, so the water that damages homes here usually comes from their own pipes and drains, not from a flood.
Deer Park at a glanceTap a figure to see it on the map
Flood risk: LowFlood zone. None of the 9,765 addresses here is inside FEMA's mapped flood zone or within about 100 ft of it.
Groundwater. At 2,853 of the 9,765 addresses measured here, groundwater is within 14 ft of the surface, close enough to reach a basement floor.
In those basements, water can seep up through the floor and come back after pumping. At the other 6,912, water in a basement usually comes in from above.
Each square is about 450 ft across. Color shows the typical depth under its addresses (USGS map, spring 2013):
- Within 10 ft1,338
- 10 to 14 ft1,515
- 14 to 25 ft4,450
- Deeper than 25 ft2,462
Sewer. 312 of the 9,765 addresses in Deer Park have a county sewer main mapped past them. That does not mean every house is connected.
At the other 9,453, a backup means a cesspool or septic tank, and a pumping company. On a main, it means a plumber, or the sewer district if the main is blocked.
Each square is about 450 ft across. Color shows how many of its addresses have a mapped main:
- Fewer than half
- Half or more
- All
What is happening at your home?
Other water emergencies we cover
Not sure which one fits? Call (631) 440-4144 and tell us what you see.
Why water gets into Deer Park homes
None of Deer Park's built-up land is in FEMA's flood zone, so floodwater from outside is not the main threat to homes here. What damages homes here is closer to home: a cesspool backing up, a wet basement, a pipe that freezes and splits and an aging pipe giving way.
- Sewage coming up a drain. Standard homeowners policies usually exclude sewage backup unless a water-backup endorsement was added, so check yours and photograph the damage before cleanup starts. Of the 9,766 addresses in Deer Park, 9,454 have no sewer main mapped past them and rely on a cesspool or septic tank; when a system backs up, the first sign is often sewage in a floor drain, a basement toilet or a shower. With public sewer covering about 3% of its built-up land, Deer Park is a mix of sewered and cesspool streets, and a backup has a different cause on each. Cesspool Overflow help in Deer Park
- Water in the basement. Pumping the water out is only half the job: the basement has to be dried and the source handled, usually with a sump pump or sealing, or the water comes back. Deer Park's water table averages 20 ft, but on some streets it sits close enough to wet a basement floor, so whether seepage is a risk depends on the street. Basement Flooding help in Deer Park
- A burst pipe. A frozen pipe that has not split yet can be saved: open the tap and warm the line gently from the tap end back, never with a flame. In a hard freeze the pipes that split are the ones in outside walls and crawlspaces, and Deer Park's houses, about 62 years old on average, have plenty of them. Frozen Pipe Burst help in Deer Park
- A leak in a wall or ceiling. Homeowners insurance usually covers a pipe that bursts suddenly but not one that leaked slowly for months, so a stain or a musty smell is worth acting on early. With 70% of its homes built before 1970, Deer Park has a lot of original plumbing, and an old pipe tends to fail slowly, as a stain or a soft floor, before it fails all at once. Ceiling & Roof Leak Water Damage help
Insurance and safety guidance from FEMA FloodSmart, the CDC and the Red Cross. How we measured the figures.
Street by street in Deer Park
See how many of its addresses are mapped inside the FEMA flood zone, how deep groundwater is mapped under it, and whether a sewer main is mapped past it.
275 streets, from county address records. Nothing you type is sent anywhere.
Streets with a mapped sewer main
County records map an active sewer main past 312 of 9,765 address points in Deer Park. On 1 street nearly every address has one; the largest:
- Bruno Ln — 24 addresses
Quick facts — Deer Park
Flood and storm
- FEMA flood zone
- X (minimal)
- Water nearby
- Sampawams Creek to the south-east and Carlls River to the south-west. Each direction is to its nearest point, from the center of Deer Park.
In an emergency
- Nearest fire department
- Deer Park Fire Department
- Nearest emergency shelter
- West Middle SchoolNot every shelter opens for every storm, and the nearest may stay closed. Suffolk County announces which ones open; follow its alerts and local news before you go.
- ZIP code
- 11729
Homes here
- Sewer status
- Unsewered (Cesspool/Septic)
- Home heating fuel
- 28% fuel oil Utility gas heats 57% of occupied homes in Deer Park. Census estimates; the oil figure is within 4 points. An oil tank can float or tip in a flood and spill. That is a separate cleanup from the water (NYS DEC). In a cold snap, an empty tank means no heat.
- When homes were built
- 1950s 34% of Deer Park's homes were built in the 1950s, more than in any other decade band. Census estimate, within 4 points. Homes from the 1950s are about 70 years old. Past 30 years, an insurance-industry study (IBHS) found supply and drain pipe problems three times as likely.
Sources: FEMA NFHL / NOAA SLOSH, US Census ACS, USDA SSURGO, Suffolk County records. Verified 2026-10-18. How we measured this.
Deer Park and nearby areas
None of the other 6 areas compared here has a smaller mapped floodplain share than Deer Park.
- West Islip 6.9%
- West Babylon 6.2%
- North Babylon 0.4%
- Deer Park 0.0%
- Baywood 0.0%
- Brentwood 0.0%
- Dix Hills 0.0%
Share of developed area inside FEMA's mapped floodplain, largest first.
3 of the other 6 areas compared here have shallower average groundwater than Deer Park.
- West Islip 8 ft
- North Babylon 10 ft
- West Babylon 12 ft
- Deer Park 20 ft
- Baywood 21 ft
- Brentwood 46 ft
- Dix Hills 129 ft
Average depth to groundwater, shallowest first.
4 of the other 6 areas compared here have lower average ground than Deer Park.
- West Islip 21 ft
- West Babylon 35 ft
- North Babylon 36 ft
- Baywood 64 ft
- Deer Park 71 ft
- Brentwood 92 ft
- Dix Hills 201 ft
Average height above sea level, lowest first.
Deer Park's sewer coverage is 3%, against a 41% average across the 6 areas around it. Deer Park is less sewered than the areas around it. It stands apart on water table too: 20 ft here against 38 ft across the same neighbors. Groundwater sits shallower under Deer Park than under the areas around it.
Compared with the areas around Deer Park. How we measured them.
Frequently asked questions about Deer Park
Is Deer Park in a flood zone?
Deer Park has no developed land inside a FEMA special flood hazard area, per FEMA's flood map (NFHL). The flood map describes surface flooding only, so it says nothing about groundwater, sewer or plumbing failures.
Does Deer Park have public sewer, or cesspools?
Deer Park is unsewered — nearly every property runs on its own cesspool or septic system.
How deep is the water table in Deer Park?
The measured water table runs about 20 ft below the surface on average across Deer Park. It is mapped within 10 ft at 1,338 of 9,765 addresses and within 25 ft at 7,303.
How old are homes in Deer Park?
The average home in Deer Park is about 62 years old, and 70% of the housing stock predates 1970 — older plumbing and unwaterproofed foundations are a common factor in local water damage.
About the figures for Deer Park
Check them at the source
Who to call for water damage in Deer Park
(631) 440-4144Tell us what is happening. We connect you with a local specialist who covers Deer Park.