| Primary address | 20 Mary Avenue, Ronkonkoma |
| Zip code | 11779 |
| County | Suffolk |
| Municipality | Brookhaven |
| Parcel ID | 6202790 |
View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.
| Current property tax | $5,848 |
| Building sqft | 1,236 |
| Building class | One Family Year-Round Residence (210) |
| Acreage | 0.14 |
| Year built | 1972 |
| Rooms | 7 |
| Bedrooms | 4 |
| Bathrooms | 1 |
| School district | Sachem |
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:
20 Mary Avenue, Ronkonkoma, NY 11779 was built in 1972 and has a total of 1,236 square feet.
What is the assessed value of 20 Mary Avenue, Ronkonkoma, NY 11779 and the property tax paid?Assessed at $2,250, the tax amount paid for 20 Mary Avenue, Ronkonkoma, NY 11779 is $7,946.
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 20 Mary Avenue, Ronkonkoma, including title documents, transfer conditions, mortgages and liens.
Access detailed property tax data for 20 Mary Avenue, Ronkonkoma, NY 11779. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.
| Tax year | 2025-2026 |
| Base tax | $7,947 |
| Current property tax | $5,848 |
| Market value | $424,529 |
| Assessed value | $2,250 |
Here's the assessment & property tax history for 20 Mary 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 | $424,529 | $2,250 | 338.342 | $7,613 | -17.92% |
| 2023-2024 | $416,667 | $2,250 | 412.188 | $9,274 | +27.16% |
| 2022-2023 | $362,903 | $2,250 | 324.157 | $7,294 | +3.72% |
| 2021-2022 | $304,055 | $2,250 | 312.54 | $7,032 | +2.63% |
| 2020-2021 | $292,208 | $2,250 | 304.524 | $6,852 | +1.29% |
The complete history of permits filed for 20 Mary 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 20 Mary 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 20 Mary 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) |
|---|---|---|---|---|---|
| Hiawatha School | 4 | Public | K-5 | 603 | 0.64 |
| Nokomis School | 3 | Public | K-5 | 527 | 1.10 |
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.25 |
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.25 |
| Edith L Slocum Elementary School | 6 | Public | PK, K-5 | 272 | 1.83 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| St Joseph School | NR | Private | PK, K-8 | 212 | 1.25 |
| Seneca Middle School | 6 | Public | 6-8 | 973 | 1.29 |
| Samoset Middle School | 6 | Public | 6-8 | 892 | 1.59 |
| Ronkonkoma Middle School | 8 | Public | 6-8 | 672 | 2.21 |
| Sagamore Middle School | 6 | Public | 6-8 | 933 | 2.24 |
| Name | Rating | Type | Grade range | No of students | Distance to school (mi) |
|---|---|---|---|---|---|
| Sachem High School North | 8 | Public | 9-12 | 1,923 | 1.94 |
| Long Island Baptist Academy | NR | Private | 2-12 | 8 | 2.41 |
| Cleary School For The Deaf | NR | Private | PK-12 | 79 | 2.76 |
| Connetquot High School | 8 | Public | 9-12 | 1,757 | 3.03 |
| Lake Grove School | NR | Private | 8-12 | 50 | 3.07 |
Data provided by GreatSchools.org © 2025. All rights reserved.
Here are the neighbors for 20 Mary Avenue, Ronkonkoma.
| Address | Square feet | Purchase date | Purchase price |
|---|---|---|---|
| 53 Mary Ave, Ronkonkoma | 2,016 | 10/25/2002 | $330,000 |
| 139 Lorraine CT, Ronkonkoma | 2,009 | 04/30/2015 | |
| 56 Mary Ave, Ronkonkoma | 1,575 | 09/10/2017 | |
| 51 Mary Ave, Ronkonkoma | 1,617 | 07/03/2007 | $370,000 |
| 137 Lorraine CT, Ronkonkoma | 1,472 | 05/20/2021 | $435,000 |
| 52 Mary Ave, Ronkonkoma | 1,980 | 10/09/2023 | |
| 15 Huxley Ln, Ronkonkoma | 1,296 | 07/11/2022 | $510,000 |
| 55 Mary Ave, Ronkonkoma | 2,004 | 11/02/2017 | $10 |
| 135 Lorraine CT, Ronkonkoma | 1,992 | ||
| 10 Huxley Ln, Ronkonkoma | 1,200 | 09/09/1997 | $135,000 |
| 14 Mary Ave, Ronkonkoma | |||
| 133 Lorraine CT, Ronkonkoma | 1,416 | 10/23/2018 | |
| 149 Union Ave, Ronkonkoma | 3,768 | 08/24/2023 | $960,000 |
| 22 Mary Ave, Ronkonkoma | 1,864 | 11/17/2010 | $264,000 |
| 16 Mary Ave, Ronkonkoma | 1,808 | 07/23/2018 | $237,000 |
| 23 Huxley Ln, Ronkonkoma | 1,906 | 02/08/2022 | $515,000 |
| 19 Huxley Ln, Ronkonkoma | 1,625 | 05/15/2024 | $605,000 |
| 6 Huxley Ln, Ronkonkoma | 1,776 | ||
| 54 Mary Ave, Ronkonkoma | 1,128 | 06/28/2021 | $435,000 |
| 58 Mary Ave, Ronkonkoma | 2,728 | 02/08/2019 | $430,500 |