| Primary address | 257 Ontario Street, Ronkonkoma |
| Zip code | 11779 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 31-3-43 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $9,758 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.25 |
| Zoning district | Register |
| School district | Connetquot |
View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.
Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:
Assessed at $41,300, the tax amount paid for 257 Ontario Street, Ronkonkoma, NY 11779 is $11,929.
When was 257 Ontario Street, Ronkonkoma, NY 11779 last sold?257 Ontario Street, Ronkonkoma, NY 11779 was last sold in 02/11/2011.
View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.
Create a free account to view the complete sales history for 257 Ontario Street, Ronkonkoma, including title documents, transfer conditions, mortgages and liens.
To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.
R: Recorded date
D: Document date
Access detailed property tax data for 257 Ontario Street, Ronkonkoma, NY 11779. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $11,930 |
| Current property tax | $9,758 |
| Market value | $581,690 |
| Assessed value | $41,300 |
Here's the assessment & property tax history for 257 Ontario Street, Ronkonkoma, including the evolution of the total tax rate and corresponding property tax.
| Year | Market value | Assessment value | Total tax rate | Property tax | Year over year change |
|---|---|---|---|---|---|
| 2024-2025 | $581,690 | $41,300 | 27.581 | $11,391 | +4.79% |
| 2023-2024 | $567,308 | $41,300 | 26.321 | $10,871 | +1.30% |
| 2022-2023 | $498,792 | $41,300 | 25.984 | $10,731 | +0.86% |
| 2021-2022 | $445,043 | $41,300 | 25.763 | $10,640 | +2.14% |
| 2020-2021 | $425,773 | $41,300 | 25.224 | $10,418 | +4.15% |
The complete history of permits filed for 257 Ontario Street, Ronkonkoma, including new construction or demolition permits, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.
Create a free account to unlock extended information for 257 Ontario Street, Ronkonkoma, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).
| FEMA flood zone(s) | X (See more on map) |
Access the detailed traffic volume map for 257 Ontario Street, Ronkonkoma to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.
| View daily traffic map |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cherokee Street Elementary School | 5 | Public | K-5 | 592 | 0.38 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 0.88 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 0.88 |
| Helen B Duffield Elementary School | 6 | Public | K-5 | 322 | 1.05 |
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 1.13 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 1.13 |
| Ronkonkoma Middle School | 8 | Public | 6-8 | 672 | 1.23 |
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.25 |
| Great Hollow Middle School | 7 | Public | 6-8 | 828 | 2.16 |
| Samoset Middle School | 6 | Public | 6-8 | 892 | 2.36 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 1.13 |
| Connetquot High School | 8 | Public | 9-12 | 1,757 | 2.33 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.47 |
| Sachem High School North | 8 | Public | 9-12 | 1,923 | 2.55 |
| Lake Grove School | NR | Private | 8-12 | 50 | 2.82 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 257 Ontario Street, Ronkonkoma.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 258 Ontario St, Ronkonkoma | 09/27/2023 | ||
| 284 Ontario St, Ronkonkoma | |||
| 281 Ontario St, Ronkonkoma | 05/24/2013 | $295,000 | |
| 2416 Motor Pkwy, Ronkonkoma | 08/26/2024 | $712,000 | |
| 301 Ontario St, Ronkonkoma | 1,822 | 05/29/2024 | $595,000 |
| 334 Port Ave, Ronkonkoma | 07/20/2023 | ||
| 2428 Motor Pkwy, Ronkonkoma | |||
| 259 Shelter Rd, Ronkonkoma | 09/07/2022 | $535,000 | |
| 316 Port Ave, Ronkonkoma | 06/02/2023 | $480,000 | |
| 2440 Motor Pkwy, Ronkonkoma | |||
| 287 Ontario St, Ronkonkoma | 1,350 | 11/12/2008 | |
| 326 Port Ave, Ronkonkoma | 05/21/2015 | ||
| 256 Collington Dr, Ronkonkoma | 1,624 | 12/21/2020 | $381,500 |
| 347 Haven Ave, Ronkonkoma | |||
| 343 Haven Ave, Ronkonkoma | 1,185 | 11/29/2021 | $350,000 |
| 317 Haven Ave, Ronkonkoma | 12/15/2025 | $300,000 | |
| 296 Ontario St, Ronkonkoma | 1,802 | 09/22/2021 | |
| 270 Collington Dr, Ronkonkoma | |||
| 266 Collington Dr, Ronkonkoma | 1,698 | 05/21/2020 | $475,000 |
| 285 Shelter Rd, Ronkonkoma | 07/25/1997 | $138,000 |