Nassau County, New York
92 ZIP codes · Avg score 87/100 · Grade A
ZipCheckup grade for Nassau County: A.
Checked records flag no major concern; missing data is unknown.
High on the scale: Nassau County (92 ZIP codes).
How Nassau County Compares
How Nassau County Compares
Nassau County scores 3 points above the New York state average (84/100) and 14 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Nassau County, New York
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.7 (asthma 9.6%, diabetes 10.1%)
Modeled additional annual cost estimate per homeowner: $4,849, largest modeled factor: Sea Level
85% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,849
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
457,678 housing units in Nassau County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Nassau County
Modeled remediation costs in Nassau County can be compared with the median property value; actual costs vary by property.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Nassau County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Nassau County ZIP codes
8 community water systems mapped to Nassau County ZIP codes; EPA may list more systems serving the county.
- B
- B
- A
- B
- A
- A
Show all 8 water systems
- B
- A
40 water systems mapped to Nassau County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Nassau County
5 water systems with violations in EPA records.
- C
- B
- B
- A
- A
All ZIP Codes in Nassau County
92 ZIP codes tracked in Nassau County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 11024 | Great Neck | 100 | A | 0 | $1634K |
| 2 | 11514 | Carle Place | 100 | A | 0 | $714K |
| 3 | 11554 | East Meadow | 100 | A | 0 | $614K |
| 4 | 11561 | Long Beach | 100 | A | 1 | $677K |
| 5 | 11579 | Sea Cliff | 100 | A | 0 | $927K |
| 6 | 11709 | Bayville | 100 | A | 1 | $671K |
| 7 | 11803 | Plainview | 100 | A | 0 | $732K |
| 8 | 11804 | Old Bethpage | 100 | A | 0 | $773K |
| 9 | 11545 | Glen Head | 99 | A | 2 (1 health) | $1029K |
| 10 | 11547 | Glenwood Landing | 99 | A | 1 (1 health) | $917K |
| 11 | 11568 | Old Westbury | 99 | A | 2 (1 health) | $2000K |
| 12 | 11771 | Oyster Bay | 99 | A | 2 (1 health) | $921K |
| 13 | 11791 | Syosset | 99 | A | 1 (1 health) | $919K |
| 14 | 11801 | Hicksville | 99 | A | 1 (1 health) | $611K |
| 15 | 11566 | Merrick | 98 | A | 3 (3 health) | $679K |
| 16 | 11570 | Rockville Centre | 98 | A | 3 (3 health) | $787K |
| 17 | 11710 | Bellmore | 98 | A | 3 (3 health) | $647K |
| 18 | 11714 | Bethpage | 98 | A | 3 (3 health) | $586K |
| 19 | 11756 | Levittown | 98 | A | 3 (3 health) | $557K |
| 20 | 11758 | Massapequa | 98 | A | 3 (3 health) | $625K |
| 21 | 11762 | Massapequa Park | 98 | A | 3 (3 health) | $623K |
| 22 | 11783 | Seaford | 98 | A | 3 (3 health) | $627K |
| 23 | 11793 | Wantagh | 98 | A | 3 (3 health) | $634K |
| 24 | 11520 | Freeport | 96 | A | 6 (6 health) | $481K |
| 25 | 11020 | Great Neck | 83 | B | 0 | $1156K |
| 26 | 11021 | Great Neck | 83 | B | 0 | $734K |
| 27 | 11023 | Great Neck | 83 | B | 0 | $1144K |
| 28 | 11050 | Port Washington | 83 | B | 0 | $991K |
| 29 | 11501 | Mineola | 83 | B | 1 | $627K |
| 30 | 11542 | Glen Cove | 83 | B | 1 (1 health) | $659K |
| 31 | 11590 | Westbury | 83 | B | 1 (1 health) | $617K |
| 32 | 11596 | Williston Park | 83 | B | 0 | $802K |
| 33 | 11735 | Farmingdale | 83 | B | 28 | $572K |
| 34 | 11560 | Locust Valley | 82 | B | 2 (1 health) | $938K |
| 35 | 11510 | Baldwin | 81 | B | 3 (3 health) | $579K |
| 36 | 11516 | Cedarhurst | 81 | B | 3 (3 health) | $819K |
| 37 | 11518 | East Rockaway | 81 | B | 3 (3 health) | $591K |
| 38 | 11552 | West Hempstead | 81 | B | 5 (3 health) | $616K |
| 39 | 11553 | Uniondale | 81 | B | 4 (3 health) | $486K |
| 40 | 11557 | Hewlett | 81 | B | 3 (3 health) | $708K |
| 41 | 11559 | Lawrence | 81 | B | 3 (3 health) | $1108K |
| 42 | 11563 | Lynbrook | 81 | B | 3 (3 health) | $596K |
| 43 | 11565 | Malverne | 81 | B | 3 (3 health) | $629K |
| 44 | 11572 | Oceanside | 81 | B | 3 (3 health) | $627K |
| 45 | 11575 | Roosevelt | 81 | B | 3 (3 health) | $457K |
| 46 | 11581 | Valley Stream | 81 | B | 3 (3 health) | $653K |
| 47 | 11598 | Woodmere | 81 | B | 3 (3 health) | $1000K |
| 48 | 11550 | Hempstead | 80 | B | 6 (3 health) | $447K |
| 49 | 11003 | Elmont | 74 | B | 28 | $577K |
| 50 | 11010 | Franklin Square | 73 | B | 30 | $647K |
| 51 | 11530 | Garden City | 73 | B | 31 | $988K |
| 52 | 11580 | Valley Stream | 72 | B | 31 (3 health) | $603K |
| 53 | 11030 | Manhasset | 67 | C | 225 | $1801K |
| 54 | 11507 | Albertson | 67 | C | 225 | $800K |
| 55 | 11576 | Roslyn | 67 | C | 226 (1 health) | $1215K |
| 56 | 11577 | Roslyn Heights | 67 | C | 225 | $945K |
| 57 | 11002 | Floral Park | — | — | — | |
| 58 | 11022 | Great Neck | — | — | — | |
| 59 | 11026 | Great Neck | — | — | — | |
| 60 | 11027 | Great Neck | — | — | — | |
| 61 | 11041 | New Hyde Park | — | — | — | |
| 62 | 11051 | Port Washington | — | — | — | |
| 63 | 11053 | Port Washington | — | — | — | |
| 64 | 11055 | Port Washington | — | — | — | |
| 65 | 11096 | Inwood | — | — | 3 (3 health) | $605K |
| 66 | 11509 | Atlantic Beach | — | — | $991K | |
| 67 | 11531 | Garden City | — | — | — | |
| 68 | 11535 | Garden City | — | — | — | |
| 69 | 11548 | Greenvale | — | — | 1 (1 health) | $701K |
| 70 | 11549 | Hempstead | — | — | 0 | — |
| 71 | 11551 | Hempstead | — | — | — | |
| 72 | 11555 | Uniondale | — | — | — | |
| 73 | 11556 | Uniondale | — | — | 0 | — |
| 74 | 11558 | Island Park | — | — | $602K | |
| 75 | 11569 | Point Lookout | — | — | 0 | $1049K |
| 76 | 11571 | Rockville Centre | — | — | — | |
| 77 | 11582 | Valley Stream | — | — | — | |
| 78 | 11592 | Rockville Center | — | — | — | |
| 79 | 11599 | Garden City | — | — | — | |
| 80 | 11732 | East Norwich | — | — | 1 (1 health) | $753K |
| 81 | 11736 | Farmingdale | — | — | — | |
| 82 | 11737 | Farmingdale | — | — | — | |
| 83 | 11753 | Jericho | — | — | 2 (1 health) | $950K |
| 84 | 11773 | Syosset | — | — | — | |
| 85 | 11774 | Farmingdale | — | — | — | |
| 86 | 11797 | Woodbury | — | — | 1 (1 health) | $1006K |
| 87 | 11802 | Hicksville | — | — | — | |
| 88 | 11815 | Hicksville | — | — | — | |
| 89 | 11819 | Hicksville | — | — | — | |
| 90 | 11853 | Jericho | — | — | — | |
| 91 | 11854 | Hicksville | — | — | — | |
| 92 | 11855 | Hicksville | — | — | — |
Recommended Buyer Guides for Nassau County
When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.
- Best Lead Paint Test Kits — 85% of homes built before 1980
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Nassau County, New York
Overview
Nassau County in New York covers 92 tracked ZIP records with an average Home Safety Score of A (87/100) across 56 scored records.
50 of 64 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 7 health-based violations appear in the available health breakdown.
← Back to New York Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.