| Primary address | 641 Johnson Avenue, Ronkonkoma |
| Zip code | 11779 |
| County | Suffolk |
| Municipality | Islip |
| Parcel ID | 61-3-24 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Sale date | 10/06/2006 |
| Sale price | $465,000 |
| Arm's length | Register |
| Property tax | $12,421 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.5 |
| 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 $43,000, the tax amount paid for 641 Johnson Avenue, Ronkonkoma, NY 11779 is $12,420.
When was 641 Johnson Avenue, Ronkonkoma, NY 11779 last sold?641 Johnson Avenue, Ronkonkoma, NY 11779 was last sold in 07/07/2025.
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 641 Johnson Avenue, 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 641 Johnson Avenue, Ronkonkoma, NY 11779. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Property tax | $12,421 |
| Market value | $605,634 |
| Assessed value | $43,000 |
Here's the assessment & property tax history for 641 Johnson Avenue, 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 | $605,634 | $43,000 | 27.581 | $11,860 | +4.79% |
| 2023-2024 | $590,659 | $43,000 | 26.321 | $11,318 | +1.30% |
| 2022-2023 | $519,324 | $43,000 | 25.984 | $11,173 | +0.86% |
| 2021-2022 | $463,362 | $43,000 | 25.763 | $11,078 | +2.14% |
| 2020-2021 | $443,299 | $43,000 | 25.224 | $10,846 | +4.15% |
The complete history of permits filed for 641 Johnson Avenue, 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 641 Johnson Avenue, 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 641 Johnson Avenue, 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) |
|---|---|---|---|---|---|
| Helen B Duffield Elementary School | 6 | Public | K-5 | 322 | 0.28 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 0.45 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 0.45 |
| Cherokee Street Elementary School | 5 | Public | K-5 | 592 | 1.15 |
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.33 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Ronkonkoma Middle School | 8 | Public | 6-8 | 672 | 0.43 |
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.33 |
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 1.90 |
| Samoset Middle School | 6 | Public | 6-8 | 892 | 2.69 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.76 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Connetquot High School | 8 | Public | 9-12 | 1,757 | 1.55 |
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 1.90 |
| Gersh Academy | NR | Private | 6-12 | 0 | 2.76 |
| Sachem High School North | 8 | Public | 9-12 | 1,923 | 2.95 |
| Lake Grove School | NR | Private | 8-12 | 50 | 3.46 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 641 Johnson Avenue, Ronkonkoma.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 162 Thomas St, Brentwood | 02/03/2023 | $240,000 | |
| 165 Nicoll Ave, Central Islip | 04/16/2012 | ||
| 18 True Harbour Way, West Islip | 4,015 | 09/24/2021 | $1,300,000 |
| 15 Heidi CT, Bohemia | 03/28/2025 | ||
| 107 Center Bay Dr, West Islip | 04/22/2003 | ||
| 38 Carrol St, Brentwood | 06/11/2013 | $255,000 | |
| 377 Fir Grove Rd, Ronkonkoma | 05/07/2003 | ||
| 75 Babylon Ave, West Islip | 11/16/2016 | $455,000 | |
| 188 Country Village Ln, East Islip | 04/30/2003 | $400,000 | |
| 301 Aster Rd, West Islip | 03/31/2025 | $1 | |
| 55 W Pine St, Islip | 08/14/2023 | $530,000 | |
| 61 New Hampshire Ave, Bay Shore | 03/08/2025 | ||
| 1300 Montauk Hwy, Oakdale | 5,500 | 04/23/2003 | $525,000 |
| 102 Smith St, Bay Shore | 04/13/2012 | $176,000 | |
| 949 Gardiner Dr, Bay Shore | 2,452 | 02/28/2023 | $780,000 |
| 39 Starlight Dr, East Islip | 02/07/2013 | $146,000 | |
| 205 Poplar St, Central Islip | 02/28/2006 | ||
| 44 Claremont Ave, Bay Shore | 12/02/2024 | ||
| 1121 Patricia Ave, West Islip | 1,495 | 02/07/2020 | $427,000 |
| 15 Val Ray Blvd, Central Islip | 04/24/2003 | $245,000 |