Short answer: Nassau's largest town is almost entirely on public sewer by the county's community list. Homes that were never connected still need licensed cesspool service.
Last updated: November 2026. Sewer status from the Nassau County Department of Health community list; areas and parcels from Nassau County GIS (2026-11-07).
Communities in the Town of Hempstead and their sewer status
| Community | Sewer authority (county list) | Area (sq mi) | Median parcel (ac) |
|---|---|---|---|
| Atlantic Beach (village) | Greater Atlantic Beach Water Reclamation District | 0.59 | 0.12 |
| Baldwin | Nassau County Department of Public Works | 2.98 | 0.14 |
| Baldwin Harbor | Not on the county list | 1.18 | 0.14 |
| Barnum Island | Not on the county list | 0.64 | 0.14 |
| Bay Park | Nassau County Department of Public Works | 0.5 | 0.09 |
| Bellerose (village) | Nassau County Department of Public Works | 0.12 | 0.12 |
| Bellerose Terrace | Nassau County Department of Public Works | 0.14 | 0.06 |
| Bellmore | Nassau County Department of Public Works | 2.3 | 0.15 |
| Cedarhurst (village) | Nassau County Department of Public Works | 0.69 | 0.14 |
| East Atlantic Beach | Not on the county list | 0.41 | 0.08 |
| East Meadow | Nassau County Department of Public Works | 5.02 | 0.15 |
| East Rockaway (village) | Nassau County Department of Public Works | 1.06 | 0.15 |
| Elmont | Nassau County Department of Public Works | 3.46 | 0.12 |
| Floral Park (village) | Nassau County Department of Public Works | 1.43 | 0.10 |
| Franklin Square | Nassau County Department of Public Works | 2.87 | 0.14 |
| Freeport (village) | Freeport Village | 4.86 | 0.15 |
| Garden City (village) | Garden City Village | 5.34 | 0.18 |
| Garden City South | Nassau County Department of Public Works | 0.4 | 0.11 |
| Harbor Isle | Not on the county list | 0.18 | 0.12 |
| Hempstead (village) | Hempstead Village | 3.69 | 0.12 |
| Hewlett | Nassau County Department of Public Works | 0.89 | 0.14 |
| Hewlett Bay Park (village) | Nassau County Department of Public Works | 0.38 | 1.00 |
| Hewlett Harbor (village) | Nassau County Department of Public Works | 0.83 | 0.46 |
| Hewlett Neck (village) | Nassau County Department of Public Works | 0.22 | 0.69 |
| Inwood | Nassau County Department of Public Works | 2.16 | 0.14 |
| Island Park (village) | Nassau County Department of Public Works | 0.39 | 0.10 |
| Lakeview | Nassau County Department of Public Works | 1.17 | 0.14 |
| Lawrence (village) | Nassau County Department of Public Works | 4.65 | 0.27 |
| Levittown | Nassau County Department of Public Works | 6.82 | 0.14 |
| Lido Beach | Nassau County Department of Public Works | 1.74 | 0.15 |
| Lynbrook (village) | Nassau County Department of Public Works | 2.02 | 0.12 |
| Malverne (village) | Nassau County Department of Public Works | 1.06 | 0.13 |
| Malverne Oaks | Not on the county list | 0.11 | 0.17 |
| Merrick | Nassau County Department of Public Works | 4.19 | 0.14 |
| New Hyde Park (village) | Nassau County Department of Public Works | 0.85 | 0.09 |
| North Bellmore | Nassau County Department of Public Works | 2.64 | 0.16 |
| North Lynbrook | Not on the county list | 0.08 | 0.13 |
| North Merrick | Nassau County Department of Public Works | 1.7 | 0.15 |
| North Valley Stream | Nassau County Department of Public Works | 1.87 | 0.14 |
| North Wantagh | Not on the county list | 1.88 | 0.15 |
| Oceanside | Nassau County Department of Public Works | 5.05 | 0.14 |
| Point Lookout | Not on the county list | 0.23 | 0.07 |
| Rockville Centre (village) | Rockville Centre Village | 3.32 | 0.16 |
| Roosevelt | Nassau County Department of Public Works | 1.83 | 0.14 |
| Salisbury | Not on the county list | 3.09 | 0.15 |
| Seaford | Nassau County Department of Public Works | 2.55 | 0.15 |
| South Floral Park (village) | Nassau County Department of Public Works | 0.1 | 0.11 |
| South Hempstead | Nassau County Department of Public Works | 0.58 | 0.15 |
| South Valley Stream | Not on the county list | 0.86 | 0.15 |
| Stewart Manor (village) | Nassau County Department of Public Works | 0.2 | 0.12 |
| Uniondale | Nassau County Department of Public Works | 5.72 | 0.14 |
| Valley Stream (village) | Nassau County Department of Public Works | 3.54 | 0.11 |
| Wantagh | Nassau County Department of Public Works | 3.84 | 0.16 |
| West Hempstead | Nassau County Department of Public Works | 2.78 | 0.14 |
| Woodmere | Nassau County Department of Public Works | 2.76 | 0.16 |
| Woodsburgh (village) | Nassau County Department of Public Works | 0.42 | 0.48 |
"Not on the county list" means the community isn't named on the health department's list; ask the town or village.
Rules that apply
- Contractors pumping, repairing or installing need a Nassau County Home Improvement License. See Nassau County regulations.
- Building permits: Town of Hempstead building department; incorporated villages run their own.
- No county rule we found requires an I/A system for an existing home; S.E.P.T.I.C. upgrades are voluntary.
Frequently asked questions
Which parts of the Town of Hempstead have no public sewer?
None of its communities are marked 'not publicly sewered' on the Nassau County Department of Health list. Individual properties can still be unconnected; ask the sewer authority.
Is there a septic grant in Nassau County?
Yes. Nassau's S.E.P.T.I.C. program helps replace a cesspool or septic system with an approved nitrogen-reducing system, for properties outside existing and proposed sewer districts (with narrow exceptions). The amount is up to $35,000 per the program administrator (Nassau County Soil & Water Conservation District); the county page still lists $20,000; confirm at 516-364-5861.
Who issues permits for cesspool work?
Single-family septic work generally goes through the local building department (the town, or the village inside an incorporated village). Contractors need a Nassau County Home Improvement License.
Sources
Each source was re-read on November 7, 2026. Program amounts and rules change; the agency page is the authority.
- Nassau County DOH: Public sewer districts by community
- Nassau County GIS map service (place boundaries, tax parcels)
- Nassau County Soil & Water Conservation District: S.E.P.T.I.C. program (program administrator)
- Nassau County: S.E.P.T.I.C. program
- Nassau County: Septic FAQ
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