Counties with the most high tide flooding

Ranked by high tide flooding days a year, last 10 years. St. Mary Parish, LA, leads with 64.8.

  1. 1St. Mary ParishLA64.8
  2. 2Washington CountyME31.1
  3. 3Hawaii CountyHI26.8
Counties with the most high tide flooding
1St. Mary Parish LA64.8205Berwick, Atchafalaya River
2Washington County ME31.144Eastport
3Hawaii County HI26.855Hilo, Hilo Bay, Kuhio Bay
4Plaquemines Parish LA24.864Pilots Station East, S.W. Pass
5Orleans Parish LA20.247New Canal Station
6Maui County HI16.836Kahului, Kahului Harbor
7St. Bernard Parish LA16.535Shell Beach
8Vermilion Parish LA15.829Freshwater Canal Locks
9Galveston County TX15.527Galveston Pier 21
10Honolulu County HI14.443Honolulu
11Norfolk city VA14.223Sewells Point
12Kauai County HI13.129Nawiliwili
13Suffolk County MA12.922Boston
14Chesapeake city VA12.820Money Point
15Monmouth County NJ12.723Sandy Hook
16Northumberland County VA12.722Lewisetta
17Atlantic County NJ12.626Atlantic City
18Pacific County WA12.633Toke Point
19New York County NY12.424The Battery
20Dare County NC12.322Duck
21York County VA12.217Yorktown USCG Training Center
22Accomack County VA12.118Wachapreague
23Hancock County ME12.119Bar Harbor
24Harris County TX11.924Morgans Point, Barbours Cut
25Calcasieu Parish LA11.823Lake Charles
26Brevard County FL11.820Trident Pier, Port Canaveral
27Hancock County MS11.623Bay Waveland Yacht Club
28Lancaster County VA11.521Windmill Point
29Sussex County DE11.321Lewes
30Chatham County GA11.118Fort Pulaski
31Humboldt County CA11.122North Spit
32Jefferson County TX10.823Texas Point, Sabine Pass
33Nassau County NY10.023Kings Point
34Anne Arundel County MD9.718Annapolis
35Charleston County SC9.317Charleston
36Cape May County NJ8.918Cape May
37Calvert County MD8.916Solomons Island
38District of Columbia DC8.722Washington
39Cameron Parish LA8.622Calcasieu Pass
40Cumberland County ME8.621Portland
41Kent County MD8.417Tolchester Beach
42Northampton County VA8.314Kiptopeke
43Fairfield County CT7.916Bridgeport
44Providence County RI7.615Providence
45Baltimore city MD7.312Baltimore
46Clatsop County OR7.226Astoria
47Horry County SC7.212Springmaid Pier
48Lincoln County OR7.125South Beach
49San Diego County CA6.813San Diego
50Nassau County FL6.810Fernandina Beach
51Clallam County WA6.829Neah Bay
52Bristol County MA6.714Fall River
53Nueces County TX6.721Packery Channel
54Jackson County MS6.417Pascagoula NOAA Lab
55Dorchester County MD6.312Cambridge
56Philadelphia County PA6.117Philadelphia
57Levy County FL6.011Cedar Key
58Coos County OR5.927Charleston
59New Haven County CT5.911New Haven
60Mobile County AL5.818Dauphin Island
61Aransas County TX5.818Rockport
62Suffolk County NY5.411Montauk
63Jefferson Parish LA5.316Grand Isle
64Carteret County NC5.311Beaufort, Duke Marine Lab
65Franklin County FL5.310Apalachicola
66Newport County RI5.211Newport
67Delaware County PA5.011Marcus Hook
68New London County CT4.810New London
69New Hanover County NC4.814Wilmington
70Barnstable County MA4.710Woods Hole
71San Juan County WA4.617Friday Harbor
72Duval County FL4.68Mayport (Bar Pilots Dock)
73Worcester County MD4.68Ocean City Inlet
74Nantucket County MA4.411Nantucket Island
75Cecil County MD4.38Chesapeake City
76Miami-Dade County FL4.29Virginia Key
77Curry County OR4.223Port Orford
78Escambia County FL4.114Pensacola
79Palm Beach County FL3.97Lake Worth Pier, Atlantic Ocean
80Hillsborough County FL3.77Old Port Tampa
81Bay County FL3.59Panama City
82Jefferson County WA3.413Port Townsend
83Lee County FL3.37Fort Myers
84New Castle County DE3.110Reedy Point
85King County WA3.011Seattle
86Pinellas County FL2.86St. Petersburg
87Manatee County FL2.87Port Manatee
88Los Angeles County CA2.77Los Angeles
89Lafourche Parish LA2.413Port Fourchon, Belle Pass
90Mendocino County CA2.214Arena Cove
91Del Norte County CA2.123Crescent City
92Marin County CA2.08Point Reyes
93Whatcom County WA2.015Cherry Point
94Cameron County TX1.57Port Isabel
95Contra Costa County CA1.115Port Chicago
96Monterey County CA1.17Monterey
97San Luis Obispo County CA1.06Port San Luis
98Alameda County CA0.610Alameda
99San Francisco County CA0.56San Francisco
100Monroe County FL0.42Key West

Figures come from each place’s page and share its sources and rules; see the methodology.

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