| Primary address | 143 North Ontario Street, Ronkonkoma |
| Zip code | 11779 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 20-1-74 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $7,790 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.17 |
| 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 $38,400, the tax amount paid for 143 North Ontario Street, Ronkonkoma, NY 11779 is $11,092.
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 143 North Ontario Street, Ronkonkoma, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 143 North 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 | $11,092 |
| Current property tax | $7,790 |
| Market value | $540,845 |
| Assessed value | $38,400 |
Here's the assessment & property tax history for 143 North 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 | $540,845 | $38,400 | 27.581 | $10,591 | +4.79% |
| 2023-2024 | $527,473 | $38,400 | 26.321 | $10,107 | +1.30% |
| 2022-2023 | $463,768 | $38,400 | 25.984 | $9,978 | +0.86% |
| 2021-2022 | $413,793 | $38,400 | 25.763 | $9,893 | +2.14% |
| 2020-2021 | $395,876 | $38,400 | 25.224 | $9,686 | +4.15% |
The complete history of permits filed for 143 North 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 143 North 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 143 North 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 | 0.12 |
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 0.85 |
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 0.85 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 1.22 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 1.22 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 0.85 |
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.44 |
| Ronkonkoma Middle School | 8 | Public | 6-8 | 672 | 1.59 |
| Great Hollow Middle School | 7 | Public | 6-8 | 828 | 1.80 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.34 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 0.85 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.34 |
| Sachem High School North | 8 | Public | 9-12 | 1,923 | 2.51 |
| Lake Grove School | NR | Private | 8-12 | 50 | 2.63 |
| Connetquot High School | 8 | Public | 9-12 | 1,757 | 2.66 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 143 North Ontario Street, Ronkonkoma.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 139 N Ontario St, Ronkonkoma | |||
| 140 Seneca St, Ronkonkoma | 1,262 | 04/20/2022 | $510,000 |
| 130 N Ontario St, Ronkonkoma | 1,825 | 06/06/2022 | |
| 161 Cherokee St, Ronkonkoma | 11/08/2022 | ||
| 123 Seneca St, Ronkonkoma | 1,477 | 02/13/2020 | $341,000 |
| 127 Seneca St, Ronkonkoma | 1,060 | ||
| 143 Seneca St, Ronkonkoma | |||
| 126 Sioux St, Ronkonkoma | 02/08/2018 | ||
| 125 N Ontario St, Ronkonkoma | 05/19/2023 | $486,200 | |
| 134 N Ontario St, Ronkonkoma | 05/09/1995 | $115,000 | |
| 130 Sioux St, Ronkonkoma | 04/02/2025 | ||
| 135 N Ontario St, Ronkonkoma | 03/04/2025 | $10 | |
| 146 N Ontario St, Ronkonkoma | 01/17/2013 | $269,000 | |
| 147 N Ontario St, Ronkonkoma | 04/16/2024 | ||
| 131 N Ontario St, Ronkonkoma | 04/21/2010 | $358,000 | |
| 142 N Ontario St, Ronkonkoma | 2,133 | 12/31/2024 | $575,000 |
| 30 Mohican Ave, Ronkonkoma | 01/12/2012 | $125,000 | |
| 128 Seneca St, Ronkonkoma | 2,248 | 07/08/2025 | $1 |
| 124 Seneca St, Ronkonkoma | |||
| 139 Seneca St, Ronkonkoma |