Suffolk County and Islip Town property records for 41 addresses on Walnut Ave, Ronkonkoma, NY · Last verified October 2026
| Properties | 41 |
|---|---|
| Median Sale Price | $525,000 |
| Deeds and Mortgages on File | 36 |
| Median Price per Sqft | $279 |
| Owner Occupied | 85% |
| Median Annual Tax Bill | $10,422 |
| Median Year Built | 1971 |
| Median Ownership Tenure | 11 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,0282024 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Jun 2024 | Owner on Record | AssessorUpdated Aug 2026 |
1,209 sqft · built 1972 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $372,500Sep 2019 | $9,8052024 | —Nov 2018 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Aug 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,488 sqft · built 1957 · 0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $300,000Jul 2015 | $10,4222024 | Amount on Record Feb 2011 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.41 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $140,000Sep 1997 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.41 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $289,990Jan 2016 | $10,3942024 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
2,040 sqft · built 1969 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $430,000Jun 2020 | Amount on Record Mar 2016 | 2 Owners on Record | Assessor + 1 DocumentUpdated Oct 2026 |
0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $355,000Dec 2016 | $10,7232024 | Amount on Record Mar 2016 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.339 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $429,000Jan 2014 | $13,3012024 | 2 Owners on Record | AssessorUpdated Aug 2026 |
2,473 sqft · built 1985 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $445,000Apr 2021 | $11,5182024 | Amount on Record Nov 2007 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Sep 2026 |
0.389 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $305,000Aug 2015 | $13,1462024 | Amount on Record Mar 2001 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
1,152 sqft · built 1957 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $200,000Jul 2017 | $9,2712024 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Aug 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.73 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record | AssessorUpdated Aug 2026 |
1,732 sqft · built 1971 · 0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $525,000Oct 2021 | $13,3322024 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.269 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $210,000Mar 2002 | 2 Owners on Record Owner Occupied | AssessorUpdated Oct 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.55 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
1,896 sqft · built 1967 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $530,000Apr 2022 | Amount on Record Aug 1994 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $123,000Sep 1999 | Amount on Record Jan 1995 | Owner on Record Owner Occupied | AssessorUpdated Oct 2026 |
1,223 sqft · built 1962 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $425,000Jan 2018 | $9,9562024 | Amount on Record Jul 2017 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.45 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $152,000Sep 1998 | Amount on Record Jan 1995 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.339 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $540,000Dec 2006 | $11,5572024 | 2 Owners on Record Owner Occupied | AssessorUpdated Sep 2026 |
2,052 sqft · built 1971 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $419,000Aug 2017 | $14,6422024 | Amount on Record May 2017 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Sep 2026 |
0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.2 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $252,000Apr 2004 | $7,5452024 | Amount on Record Jan 1999 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $192,500Mar 2000 | $14,0392024 | Amount on Record Oct 1999 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Sep 2026 |
3,062 sqft · built 1988 · 0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $310,500Jan 2011 | Owner on Record Owner Occupied | AssessorUpdated Oct 2026 |
0.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $370,000Dec 2005 | $10,3122024 | Amount on Record Jul 1995 | 2 Owners on Record Owner Occupied | AssessorUpdated Oct 2026 |
0.36 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $184,000Nov 1997 | $7,1792024 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $865,000Aug 2022 | $7,6552024 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $345,000Aug 2010 | $8,9162024 | Amount on Record Aug 2003 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
1,243 sqft · built 1985 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $150,000Dec 2017 | Owner on Record | Assessor + 1 DocumentUpdated Sep 2026 |
0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $190,000Dec 2014 | Amount on Record Mar 1999 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Aug 2026 |
0.339 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Oct 2026 |
0.65 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Mar 1994 | 2 Owners on Record Owner Occupied | AssessorUpdated Aug 2026 |
0.81 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $212,500Aug 2004 | 2 Owners on Record | AssessorUpdated Sep 2026 |
2,124 sqft · built 2000 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $560,000Oct 2021 | $13,6562024 | Amount on Record Nov 2002 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Aug 2026 |
0.31 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $380,000Jul 2003 | 2 Owners on Record Owner Occupied | AssessorUpdated Sep 2026 |