Huntington, NY Cesspool & Septic: Sewer, Rules, Grants

Short answer: Only part of Huntington is sewered.

Huntington in numbers

Town	Town of Huntington
Area	7.66 sq mi
In active sewer district	16% · Huntington
In proposed district	0%
Groundwater zone	Zone I 58%, Zone VIII 42%
FEMA flood zone	1%
One-family lots / median	6,167 / 0.33 ac
One-family lots outside active sewer districts	about 4,696

Computed 2026-11-07 from Suffolk County GIS (hamlet boundaries, sewer districts, groundwater management zones, FEMA flood zones, protection areas, tax parcels). Shares are of land area; a district boundary is not a hookup, and some village-run systems are missing from the county layer. Method and full table.

Sewer coverage

Only part of Huntington is sewered. The county layer puts about 16% of its area inside Huntington; homes outside that line use on-site systems. By parcel count, roughly 4,696 of Huntington's 6,167 one-family lots sit outside an active district; that is the local cesspool and septic population, before counting unconnected lots inside districts. For comparison, the nearest places: Centerport (2% sewered, median lot 0.26 ac); Halesite (17% sewered, median lot 0.31 ac); Greenlawn (0% sewered, median lot 0.26 ac). By active-sewer share Huntington ranks 32 of the 165 Suffolk hamlets and villages we measured.

Groundwater, lots and flood exposure

Groundwater management Zone I (58%) and Zone VIII (42%): Article 6's minimum lot for a new home on an on-site system here is 20,000 sq ft, unless the density is met another way or an exemption applies. County parcel records show 6,167 one-family lots touching Huntington, with a median of 0.33 acres (about 14,500 sq ft), below that minimum and the 95th-largest median lot in our Suffolk table. No part of Huntington is mapped in a flood zone of note, a groundwater protection area or the Pine Barrens.

For most Huntington homes the main running cost is pumping; when a cesspool fails, the replacement must include at least a septic tank, and grants can cover most of an I/A system.

Who handles what in Huntington

Building and electrical permits: Town of Huntington
Sewer: Huntington
System approvals and grants: SCDHS, 631-852-5700 (permits) / 631-852-5811 (grants)

Frequently asked questions

Is Huntington on public sewer?

Partly: about 16% is inside Huntington; the other 84% relies on cesspools, septic tanks and I/A systems.

Can Huntington homeowners get septic grants?

Yes, if the home isn't sewered and isn't in a proposed sewer district: up to $20,000 from Suffolk and up to $25,000 from the state.

County rules, licensing and grant steps: Town of Huntington overview, septic grants, replacement rules. More in Huntington: Centerport, Huntington Station, Northport, Cold Spring Harbor.

Sources

Each source was re-read on November 7, 2026. Program amounts and rules change; the agency page is the authority.

Need cesspool or septic work in Huntington?

Submit a request with your address. We match it to an independent, licensed Suffolk County operator who serves that address; the operator confirms the time and price with you.

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