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New York inland flooding risk

62 counties scored 3 rated Very High

Kings County has the highest inland flooding risk in New York, scoring 99.4 out of 100 — rated "Very High" by FEMA's National Risk Index. Recorded inland flooding events across New York have increased 57% over the past five years compared to the prior five-year period.

# County NRI score Rating NOAA events
2016–2026
1 Kings County 99.4 Very High 31
2 Queens County 99.3 Very High 67
3 New York County 99.2 Very High 20
4 Erie County 99 Relatively High 51
5 Bronx County 98.5 Relatively High 28
6 Suffolk County 98.3 Relatively High 113
7 Nassau County 98.2 Relatively High 76
8 Westchester County 98 Relatively High 126
9 Monroe County 96.7 Relatively High 37
10 Onondaga County 95.2 Relatively High 34
11 Orange County 93.4 Relatively High 59
12 Broome County 93.2 Relatively Moderate 94
13 Dutchess County 92.4 Relatively Moderate 37
14 Richmond County 92 Relatively Moderate 21
15 Ulster County 91.9 Relatively Moderate 69
16 Rockland County 91.8 Relatively Moderate 43
17 Chautauqua County 91.3 Relatively Moderate 33
18 Delaware County 91.2 Relatively Moderate 46
19 Oneida County 91.1 Relatively Moderate 50
20 Niagara County 91 Relatively Moderate 25
21 Albany County 90.3 Relatively Moderate 92
22 Cattaraugus County 89.9 Relatively Moderate 33
23 Rensselaer County 89 Relatively Moderate 34
24 Steuben County 87.5 Relatively Moderate 105
25 Sullivan County 86.6 Relatively Moderate 18
26 Tompkins County 86.2 Relatively Moderate 16
27 Otsego County 85.8 Relatively Moderate 26
28 Chenango County 85.6 Relatively Moderate 32
29 St. Lawrence County 85 Relatively Moderate 8
30 Allegany County 84.6 Relatively Moderate 58
31 Saratoga County 83.3 Relatively Moderate 40
32 Schenectady County 82.9 Relatively Moderate 30
33 Clinton County 82.4 Relatively Moderate 10
34 Oswego County 82.1 Relatively Moderate 26
35 Greene County 81.8 Relatively Moderate 33
36 Montgomery County 80.5 Relatively Moderate 35
37 Columbia County 79.9 Relatively Moderate 29
38 Tioga County 78.9 Relatively Moderate 26
39 Ontario County 78.8 Relatively Moderate 41
40 Herkimer County 78.5 Relatively Moderate 76
41 Cayuga County 78.1 Relatively Moderate 38
42 Jefferson County 78 Relatively Moderate 11
43 Madison County 77.1 Relatively Moderate 20
44 Essex County 76.9 Relatively Moderate 25
45 Livingston County 73.3 Relatively Moderate 21
46 Wayne County 72.3 Relatively Low 9
47 Chemung County 72.2 Relatively Low 22
48 Cortland County 71.9 Relatively Low 31
49 Warren County 71.5 Relatively Low 56
50 Genesee County 71.1 Relatively Low 7
51 Washington County 70.7 Relatively Low 82
52 Yates County 67.5 Relatively Low 11
53 Franklin County 67.1 Relatively Low 11
54 Fulton County 66.4 Relatively Low 7
55 Schoharie County 65.6 Relatively Low 16
56 Wyoming County 63.7 Relatively Low 7
57 Seneca County 63.6 Relatively Low 16
58 Putnam County 57.4 Relatively Low 11
59 Lewis County 49.9 Relatively Low 33
60 Hamilton County 41.8 Relatively Low 18
61 Orleans County 39.9 Relatively Low 9
62 Schuyler County 39.1 Relatively Low 7

Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.

Inland Flooding risk nationally:

Top 50 US counties

Other hazard risks in New York:

WildfireCoastal FloodingEarthquakeHeat WaveTornadoHurricaneHailStrong WindWinter WeatherIce StormCold WaveLightningDroughtLandslideAvalancheTsunamiVolcanic Activity

Frequently asked questions

What is the highest inland flooding risk county in New York?

Kings County, NY has the highest inland flooding risk in New York, with a FEMA National Risk Index score of 99.4 out of 100 (rated "Very High").

How many counties in New York are rated Very High for inland flooding risk?

3 of 62 scored New York counties are rated "Very High" for inland flooding risk by FEMA's National Risk Index.

What causes inland flooding risk in New York?

Inland flooding covers riverine and surface (pluvial) flooding — the most common and costly natural disaster type in the US. High scores appear across river floodplains in the Midwest, South, and Mid-Atlantic, where legacy development in flood-prone areas and aging stormwater infrastructure concentrate risk.