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Sewer Coverage by Long Island Hamlet

165 Suffolk hamlets and villages, measured against the county's sewer-district map.

Short answer: Of the 165 Suffolk hamlets and villages we measured, 107 have essentially no land inside an active county sewer district, 18 are more than half covered, and 8 are more than half inside a proposed district. Download the table as CSV or JSON below.

Computed 2026-11-07 from Suffolk County GIS. Shares are of land area inside sewer-district polygons, not counts of connected homes. Village-run systems missing from the county layer (for example Greenport, Ocean Beach and Sag Harbor) show as 0%. Cite as: ClickCesspool, "Sewer coverage by Long Island hamlet," computed from Suffolk County GIS, 2026-11-07.

Download CSV JSON

Suffolk County hamlets and villages

Click a column heading to sort.

Hamlet / villageTownActive sewerProposed sewerFeasibility studyMain GW zoneFEMA floodMedian 1-family lot (ac)
AmagansettEast Hampton0%0%0%Zone IV16%0.585
AmityvilleBabylon100%0%0%Zone VII28%n/a
AquebogueRiverhead0%0%0%Zone IV10%0.573
AsharokenHuntington0%0%0%Zone VIII40%0.98
BabylonBabylon100%0%0%Zone VII27%n/a
Baiting HollowRiverhead0%0%0%Zone VIII3%0.53
Bay ShoreIslip96%0%0%Zone VII7%0.221
BayportIslip0%4%0%Zone VI12%0.367
BaywoodIslip0%1%0%Zone VII0%0.366
Belle TerreBrookhavenunder 1%0%0%Zone VIII3%1.131
BellportBrookhaven0%3%0%Zone VI11%0.338
Blue PointBrookhaven0%0%0%Zone VI17%0.279
BohemiaIslip0%16%0%Zone I4%0.461
BrentwoodIslip0%2%24%Zone I0%0.252
BridgehamptonSouthampton0%0%0%Zone V7%0.965
BrightwatersIslip100%0%0%Zone VII8%0.322
BrookhavenBrookhaven0%0%0%Zone VI23%0.51
CalvertonRiverhead6%0%0%Zone III4%0.549
CaptreeIslip0%0%0%Zone IV78%n/a
Center MorichesBrookhaven0%0%0%Zone VI12%0.451
CentereachBrookhaven8%6%0%Zone I0%0.313
CenterportHuntington2%0%0%Zone VIII8%0.262
Central IslipIslip23%2%0%Zone I2%0.228
Cold Spring HarborHuntington0%0%0%Zone I2%0.753
CommackSmithtown3%0%0%Zone I0%0.29
CopiagueBabylon100%0%0%Zone VII25%n/a
CoramBrookhaven22%3%0%Zone III0%0.357
CutchogueSouthold0%0%0%Zone IV9%0.726
Deer ParkBabylon1%98%under 1%Zone I0%0.774
Dering HarborShelter Island0%0%0%Zone IV10%1.697
Dix HillsHuntington3%under 1%under 1%Zone I0%0.944
East FarmingdaleBabylon60%1%0%Zone VII0%n/a
East HamptonEast Hampton0%2%0%Zone IV19%0.92
East Hampton NorthEast Hampton0%0%0%Zone Vunder 1%0.531
East IslipIslip92%0%0%Zone VII9%0.263
East MarionSouthold0%0%0%Zone IV11%0.495
East MorichesBrookhaven0%0%0%Zone VI16%0.526
East NorthportHuntington0%0%0%Zone I0%0.249
East PatchogueBrookhaven8%0%0%Zone VI10%0.297
East QuogueSouthampton2%0%0%Zone III13%0.476
East SetauketBrookhaven0%0%4%Zone Iunder 1%0.452
East ShorehamBrookhavenunder 1%0%0%Zone VIII3%0.548
EastportBrookhaven0%0%0%Zone III4%0.627
Eatons NeckHuntington0%0%0%Zone VIII14%0.359
ElwoodHuntington0%0%0%Zone I0%0.459
FarmingvilleBrookhaven3%9%0%Zone III0%0.283
Fire IslandBrookhaven0%0%0%Zone IV89%0.141
Fishers IslandSouthold0%0%0%Zone IV29%1.151
FlandersSouthampton0%0%0%Zone III12%0.277
Fort SalongaHuntington0%0%0%Zone VIII12%0.974
Gardiners IslandEast Hampton0%0%0%Zone IV21%n/a
GilgoBabylon0%0%0%Zone IV89%n/a
Gordon HeightsBrookhaven0%0%0%Zone III0%0.29
Great RiverIslip57%under 1%0%Zone VII37%0.494
GreenlawnHuntington0%0%0%Zone Iunder 1%0.255
GreenportSouthold0%0%0%Zone IV16%0.175
Greenport WestSouthold0%0%0%Zone IV26%0.343
HalesiteHuntington17%0%0%Zone VIII9%0.307
Hampton BaysSouthampton0%1%0%Zone IV14%0.393
HauppaugeSmithtown26%under 1%0%Zone I0%0.344
Head of the HarborSmithtown0%0%0%Zone VIII2%2.021
HolbrookIslip23%4%0%Zone I0%0.245
HoltsvilleBrookhaven8%under 1%0%Zone VI1%0.341
HuntingtonHuntington16%0%0%Zone I1%0.334
Huntington BayHuntington0%0%0%Zone VIII14%0.656
Huntington StationHuntington5%2%0%Zone I0%0.205
IslandiaIslip8%0%0%Zone I2%0.268
IslipIslip92%0%0%Zone VII9%0.259
Islip TerraceIslip69%0%0%Zone VII0%0.254
JamesportRiverhead0%0%0%Zone IV7%0.461
Kings ParkSmithtown5%2%0%Zone VIII2%0.237
Lake GroveBrookhaven4%1%0%Zone I0%0.303
Lake RonkonkomaBrookhaven0%7%0%Zone I0%0.228
LaurelSouthold0%0%0%Zone IV4%0.523
LindenhurstBabylon100%0%0%Zone VII12%n/a
Lloyd HarborHuntington0%0%0%Zone VIII10%2.081
ManorvilleBrookhaven0%0%0%Zone III2%0.923
MasticBrookhaven0%32%0%Zone VI2%0.233
Mastic BeachBrookhaven0%98%0%Zone VI36%0.23
MattituckSouthold0%0%0%Zone IV8%0.519
MedfordBrookhaven7%7%0%Zone III0%0.34
MelvilleHuntington11%under 1%0%Zone I0%0.351
Middle IslandBrookhaven2%0%0%Zone III1%0.516
Miller PlaceBrookhaven3%0%0%Zone III1%0.509
MontaukEast Hampton0%2%0%Zone IV16%0.429
MorichesBrookhaven0%0%0%Zone VI8%0.511
Mount SinaiBrookhaven24%under 1%0%Zone III4%0.545
NapeagueEast Hampton0%0%0%Zone IV93%0.379
NesconsetSmithtown3%4%0%Zone I0%0.323
New SuffolkSouthold0%0%0%Zone IV40%0.365
NissequogueSmithtown0%0%0%Zone VIII16%2.043
North AmityvilleBabylon100%0%0%Zone VII0%n/a
North BabylonBabylon69%22%0%Zone VII3%0.701
North Bay ShoreIslip0%under 1%0%Zone VII0%0.271
North BellportBrookhaven21%10%0%Zone VI0%0.236
North Great RiverIslip1%0%0%Zone I3%0.459
North HavenSouthampton0%0%0%Zone IV22%0.921
North LindenhurstBabylon100%0%0%Zone VII0%n/a
North PatchogueBrookhaven0%0%0%Zone VI7%0.202
North SeaSouthampton0%0%0%Zone V12%0.529
NorthamptonSouthampton0%0%0%Zone III1%0.245
NorthportHuntington16%16%0%Zone VIII2%0.272
NorthvilleRiverhead0%0%0%Zone IV2%0.665
Northwest HarborEast Hampton0%0%0%Zone IV10%0.921
NoyackSouthampton0%0%0%Zone V8%0.529
Oak BeachBabylon0%0%0%Zone IV75%n/a
OakdaleIslip0%98%0%Zone VI35%0.317
Ocean BeachIslip0%0%0%Zone IV99%0.096
Old FieldBrookhaven0%0%0%Zone VIII24%2.074
OrientSouthold0%0%0%Zone IV46%0.625
PatchogueBrookhaven17%0%0%Zone VI20%0.223
PeconicSouthold0%0%0%Zone IV7%0.631
Plum IslandSouthold0%0%0%Zone IV38%n/a
Poospatuck Indian ReservationBrookhaven0%100%0%Zone VI22%0.271
PoquottBrookhaven0%0%0%Zone VIII9%0.458
Port JeffersonBrookhaven21%0%0%Zone VIII2%0.396
Port Jefferson StationBrookhaven0%5%0%Zone I0%0.341
QuiogueSouthampton0%0%0%Zone IV19%0.656
QuogueSouthampton0%0%0%Zone IV42%1.007
Remsenburg-speonkSouthampton0%0%0%Zone VI13%0.846
RidgeBrookhaven8%0%0%Zone III1%0.479
RiverheadRiverhead18%0%0%Zone IV3%0.245
RiversideSouthampton0%14%0%Zone III22%0.296
Robbins IslandSouthold0%0%0%Zone IV11%n/a
Rocky PointBrookhaven0%0%0%Zone IIIunder 1%0.23
RonkonkomaIslip1%36%0%Zone I1%0.273
Sag HarborSouthampton0%0%0%Zone IV16%0.288
SagaponackSouthampton0%0%0%Zone V20%1.443
St. JamesSmithtown4%2%0%Zone VIII0%0.27
SaltaireIslip0%0%0%Zone IV100%0.192
SayvilleIslip0%99%0%Zone VI5%0.28
SeldenBrookhaven5%8%0%Zone III0%0.219
SetauketBrookhaven0%0%3%Zone VIII6%0.595
Shelter IslandShelter Island0%0%0%Zone IV14%0.912
Shelter Island HeightsShelter Island0%0%0%Zone IV14%0.927
Shinnecock HillsSouthampton0%0%0%Zone IV8%0.573
Shinnecock Indian NationSouthampton0%0%0%Zone IV38%1.252
ShirleyBrookhaven0%16%0%Zone VI15%0.259
ShorehamBrookhaven0%0%0%Zone VIII2%0.757
SmithtownSmithtownunder 1%2%0%Zone VIII2%0.487
Sound BeachBrookhaven0%0%0%Zone VIII1%0.203
South HuntingtonHuntington3%0%0%Zone I0%0.231
SouthamptonSouthampton0%3%0%Zone IV28%0.455
SoutholdSouthold0%0%0%Zone IV16%0.503
SpringsEast Hampton0%under 1%0%Zone IV13%0.471
Stony BrookBrookhaven28%1%2%Zone VIII6%0.391
Stony Brook UniversityBrookhaven97%0%0%Zone I0%0.463
TerryvilleBrookhaven4%0%0%Zone III0%0.267
TuckahoeSouthampton0%0%0%Zone IV9%0.554
UptonBrookhaven0%0%0%Zone III2%1
Village of the BranchSmithtown0%12%0%Zone VIII7%0.507
Wading RiverRiverhead0%0%0%Zone VIII4%0.582
WainscottEast Hampton0%0%0%Zone V5%0.96
Water MillSouthampton0%0%0%Zone V12%1.022
West BabylonBabylon80%10%0%Zone VII7%n/a
West Bay ShoreIslip100%0%0%Zone VII24%0.274
West Hampton DunesSouthampton0%0%0%Zone IV99%0.34
West HillsHuntington0%0%0%Zone I0%0.439
West IslipIslip91%5%0%Zone VII7%0.258
West SayvilleIslip0%100%0%Zone VI28%0.26
WesthamptonSouthampton16%0%0%Zone III6%0.575
Westhampton BeachSouthampton1%0%0%Zone IV48%0.48
Wheatley HeightsBabylon0%66%0%Zone I0%n/a
WyandanchBabylon32%60%0%Zone VII0%n/a
YaphankBrookhavenunder 1%0%0%Zone III2%0.69

Method

  • Hamlet and village boundaries: county layer 12 (Hamlets). Town: largest-share town from layer 13.
  • Sewer districts: layer 14, by the LIFECYCLESTATUS field. Active and Proposed are reported separately; "Feasibilit" polygons are reported as under feasibility study, not a district (share outside any active or proposed district). Suffolk's grants exclude homes in a proposed sewer district, not in a study area. Delete/Removed polygons ignored.
  • Groundwater management zones (Article 6 density zones): layer 37. Flood: layer 73, special flood hazard areas only. Special Groundwater Protection Areas: layer 76. Pine Barrens core: layer 35.
  • Lots: county tax parcels (layer 57), NYS property class 210 (one-family) intersecting each hamlet polygon; median acreage; lots intersecting an active sewer district counted separately. Town of Babylon parcel records don't use class 210, so lot figures are blank there.
  • Nassau County has no equivalent public polygon layer we could use; see the county's community list instead.

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