Most expensive school districts on Long Island

The 25 Long Island school districts with the highest median property tax bills, ranked from highest down. Based on NY State assessment data.

# School District County Median bill Median home
1 Cold Spring Harbor Suffolk $30,783/yr $1685k
2 East Williston Nassau $20,657/yr $942k
3 Manhasset Nassau $18,282/yr $1360k
4 Jericho Nassau $16,828/yr $838k
5 Syosset Suffolk $16,283/yr $708k
6 Roslyn Nassau $16,082/yr $942k
7 Herricks Nassau $15,915/yr $726k
8 Babylon Suffolk $15,593/yr $702k
9 Bridgehampton Suffolk $15,427/yr $4095k
10 Port Washington Nassau $15,373/yr $842k
11 Half Hollow Hills Suffolk $15,361/yr $917k
12 North Shore Nassau $15,337/yr $696k
13 Hewlett-Woodmere Nassau $15,325/yr $610k
14 Three Village Suffolk $15,322/yr $727k
15 Merrick Nassau $15,206/yr $566k
16 Bayport-Blue Point Suffolk $15,156/yr $633k
17 Rockville Centre Nassau $14,770/yr $657k
18 Commack Suffolk $14,683/yr $706k
19 North Merrick Nassau $14,528/yr $505k
20 Harborfields Suffolk $14,419/yr $789k
21 Shoreham-Wading River Suffolk $14,332/yr $714k
22 Smithtown Suffolk $14,000/yr $686k
23 Garden City Nassau $13,956/yr $860k
24 Mount Sinai Suffolk $13,900/yr $688k
25 Elwood Suffolk $13,844/yr $700k
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Methodology

Ranked by median residential property tax bill from the latest NY State Office of Real Property assessment roll. For each district, the median bill is the per-parcel projection (FMV × combined county+town+school rate ÷ $1,000) medianed across all residential parcels — so multi-town districts use each parcel's actual local rate. Excludes village, library, and special-district levies. District rankings exclude tiny K-6 elementary-only districts under 1,500 parcels (those families pay tuition elsewhere for upper grades, so the bill isn't comparable).

Last updated using roll year 2025 data. Cross-check with your county receiver before making financial decisions.