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     TIP: Section, Block and Lot are found on tax bill
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     TIP: For best results use only the Street Name. Do not use directional prefixes (Example: N. S.E.W) or street suffixes (Example: Avenue, Rd, Court, Lane, Street, etc.). You can also try entering only the first few letters of the street name (Example: "Ches" will return, Chestnut, Chester, Chess, etc.)
Or Click here to Search by Map 
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Nassau County Department of Assessment