NY Property Records
21 Poplar St
21 Poplar St
Islip · Suffolk County
210 · Residential
Owner of record
OwnerJoseph Jr & Nancy Koster
Mailing address21 POPLAR ST · SAYVILLE, NY, 11782
Assessment · 2025 roll
Land assessed$14,100
Total assessed$46,800
Est. annual tax$12,934 (2024, excl. special districts)
Lot
Size0.3 acres
Services & districts
School districtSayville (472804)
Deed & identifiers
SBL05004310002000270000
Print key431.-2-27
SWIS472889
Parcel ID47288905004310002000270000
Who owns 21 Poplar St?
21 Poplar St, Islip is owned by Joseph Jr & Nancy Koster per the 2025 NYS assessment roll.
Nearby on Poplar St
Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction
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