Suffolk County and Islip Town property record for 812 Johnson Ave, Ronkonkoma, NY 11779
| Property Type | Single Family Home |
|---|---|
| Lot Size | 0.45 acres (19,602 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $219,000 (May 2002) |
| Tax Bill | $7,463 (2024) |
| Flood Zone | Zone X (minimal risk) |
| APN | 472889 62.-2-3 |
| Primary APN | 472889 62.-2-3 |
|---|---|
| Alternative APNs |
|
| Lot Area | 19,602 sqft (0.45 acres) |
|---|---|
| Lot Dimensions | 200 ft deep x 100 ft wide |
| Account Number | 058140 |
|---|---|
| Street Address | 812 JOHNSON AVE |
| City | RONKONKOMA |
| State | NY |
| Zip | 11779-6139 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AA |
| Legal Description | X2241131Y212910 T014H00000000 |
| Legal Block | 2000 |
| Legal Lot Number | 200 |
| Jurisdiction | SUFFOLK NY |
| Township / Civil Division | ISLIP |
| Census Block Group | 2 |
| Census Block | 2026 |
| Census Tract | 145808 |
Source: Suffolk County and Islip 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 812 JOHNSON AVE, RONKONKOMA, NY 11779-6139 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | May 6, 2002 · Amount on Record |
| Deed Sale | May 6, 2002 · Amount on Record |
| Prior Sale | Apr 4, 1994 · Amount on Record |
| Deed Book / Page | 12184 / 240 |
| Prior Transfer Date | Sep 10, 1998 |
| Prior Transfer Doc | 1192000292 |
| Record Updated | Sep 20, 2026 |
Source: Suffolk County and Islip Town assessment roll, as of August 11, 2026
| Type | Name |
|---|---|
| State | New York |
| County | Suffolk County |
| County Subdivision | Islip Town |
| Unified School District | Connetquot Central School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $28,700 (-) Land $13,900 Building $14,800 | $404,226 (-) Land $195,775 Building $208,451 | |
| 2024 | $7,463.00 | $404,226 (+2.54%) Land $195,775 Building $208,451 | |
| 2023 | $28,700 Land $13,900 Building $14,800 | $394,231 Land $190,934 Building $203,297 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 | 3 in force |
| Nearby Flood Claims | 2 (2011–2014) |
| Claims Outside the SFHA | 2 of 2 |
| Most Recent Claim | Aug 2014 · 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 99.1% of the US · lower than 99.2% of New York |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | Direct burnable vegetation |
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 314 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 |
May also be available: T-Mobile.
5G (outdoors only) and 4G LTE
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