Suffolk County and Brookhaven Town property record for 20 Walnut St, Ronkonkoma, NY 11779
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 720 sqft · built 1957 |
| Lot Size | 0.24 acres (10,454 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $4,060 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0200-564.00-03.00-011.000 |
| Primary APN | 0200-564.00-03.00-011.000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 720 sqft Living Area |
| Year Built | Built 1957 |
|---|---|
| Effective Year Built | Effective 1957 |
| Exterior Material | Wood |
| Lot Area | 10,454 sqft (0.24 acres) |
| View / Lot | Waterfront |
| Heating System | Radiant |
|---|
| Account Number | 6317370 |
|---|---|
| Street Address | 20 WALNUT ST |
| City | RONKONKOMA |
| State | NY |
| Zip | 11779-1668 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LAKE PINES 1444 UNIT 3 177 |
| Legal Subdivision | LAKE PINES |
| Legal Block | 4000 |
| Legal Lot Number | 300 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | BROOKHAVEN |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 158512 |
Source: Suffolk County and Brookhaven Town records, as of August 11, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on Record |
|---|---|
| Mailing Address | 20 WALNUT ST, RONKONKOMA, NY 11779-1668 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Brookhaven Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Brookhaven Town |
| Unified School District | Sachem Central School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $1,300 (-) Land $245 Building $1,055 | $270,834 (+11,147.26%) Land $46,226 Building $199,057 | |
| 2024 | $4,060.00 | ||
| 2023 | $1,300 Land $245 Building $1,055 | $2,408 Land $454 Building $1,954 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
Source: FEMA National Flood Hazard Layer, effective September 18, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 1 (1979) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 1979 · rainfall accumulation |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 97% of the US · lower than 96% of New York |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SUFFOLK COUNTY WATER AUTHORITY serves 1,100,000 people · EPA ID NY5110526 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2024 |
| Lead | 1 ppb (2025–2027) action level 15 ppb |
| Water Quality | Asbestos resolved · Jul 2020 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 451 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Optimum Fiber · Cable | 8,000 / 8,000 |
| Verizon Fiber · Fixed Wireless in parts of the area | 2,300 / 2,300 |
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