Updated 2026-07-13

Wisconsin beach water quality

Wisconsin has 219 public beaches in the EPA monitoring dataset, 119 of them with enough bacteria samples to grade. 26 earn an A for consistently clean water, while 15 grade an F for frequently exceeding the safe-swimming limit. Full ranking below.

A 26

B 26

C 27

D 25

F 15

Grade	Beach	County	% over limit	Samples	Advisory
A	Bayshore Park Beach	Brown	0%	71	Excellent
A	Lily Bay Boat Launch Beach	Door	0%	68	Excellent
A	Oronto Bay Beach 2	Iron	0%	32	Excellent
A	Sunset Beach Fish Creek	Door	0%	29	Excellent
A	Madigan	Ashland	0%	20	Excellent
A	Ellison Bay Town Park Beach	Door	0.8%	266	Excellent
A	Potawatomi State Park Beach 1	Door	1.2%	81	Excellent
A	Memorial Beach Bayfield	Bayfield	1.4%	71	Excellent
A	Jackson Harbor Ridges - Wi	Door	1.4%	69	Excellent
A	Rock Island State Park Beach	Door	1.4%	69	Excellent
A	School House Beach	Door	1.4%	69	Excellent
A	Sandy Bay Town Park Beach	Door	1.5%	136	Excellent
A	Whitefish Dunes Beach	Door	1.6%	252	Excellent
A	Sunset Beach Road	Brown	1.7%	58	Excellent
A	Sioux River Beach South	Bayfield	1.8%	278	Excellent
A	Bad River Mouth East	Ashland	1.9%	536	Excellent
A	Hotz Memorial Park (Europe Bay #2)	Door	1.9%	475	Excellent
A	Newport Bay Beach	Door	1.9%	263	Excellent
A	Washburn Marina Beach	Bayfield	2.3%	86	Excellent
A	Whitefish Bay Boat Launch Beach	Door	2.5%	81	Excellent
A	Wisconsin Point Lighthouse Lot 5	Douglas	2.7%	146	Excellent
A	Saxon Harbor Beach East	Iron	2.8%	72	Excellent
A	Gislason Beach	Door	2.8%	71	Excellent
A	Amnicon Bay	Ashland	2.8%	36	Excellent
A	Portage Park Beach	Door	2.9%	138	Excellent
A	Sand Dune Beach	Door	2.9%	70	Excellent
B	Herbster Beach - Clover Town Park Beach	Bayfield	3.3%	181	Good
B	Sturgeon Bay Ship Canal Nature Preserve	Door	3.4%	179	Good
B	Saxon Harbor Beach West	Iron	3.4%	116	Good
B	Siskiwit Bay Beach West	Bayfield	3.5%	283	Good
B	Percy Johnson Memorial Park Beach	Door	3.6%	56	Good
B	Pebble Beach Road Door	Door	3.6%	28	Good
B	Bradford Beach	Milwaukee	3.9%	203	Good
B	Atwater Park Beach	Milwaukee	4.1%	146	Good
B	Broad Street Beach	Bayfield	4.1%	73	Good
B	Sister Bay Beach	Door	4.5%	266	Good
B	Little Sand Bay Beach	Bayfield	4.7%	298	Good
B	Alford Park Beach	Kenosha	5%	139	Good
B	Egg Harbor Beach	Door	5.1%	272	Good
B	Port Wing Beach East	Bayfield	5.5%	73	Good
B	Baileys Harbor Ridges Park Beach	Door	5.6%	267	Good
B	Sunset Park Beach Sturgeon Bay	Door	5.6%	252	Good
B	Port Wing Beach West	Bayfield	5.6%	72	Good
B	Sand Bay Beach 2	Door	5.7%	157	Good
B	Anclam Park Beach	Door	6%	183	Good
B	South Shore Beach - New Location	Milwaukee	6.2%	145	Good
B	Lakeside Park Beach	Door	6.4%	188	Good
B	Kohler Andrae State Park South Picnic Beach	Sheboygan	6.5%	215	Good
B	Second Landing	Ashland	6.5%	124	Good
B	Bittersweet Lane Beach	Door	6.7%	30	Good
B	Memorial Park Beach Washburn	Bayfield	6.9%	87	Good
B	Kohler Andrae State Park Nature Center Beach	Sheboygan	7%	643	Good
C	Blue Harbor Beach	Sheboygan	7.2%	152	Fair
C	Southport Park Beach	Kenosha	7.7%	143	Fair
C	Wikdal Memorial Boat Launch Beach	Bayfield	7.8%	64	Fair
C	County Road D Boat Launch Beach	Ozaukee	8%	137	Fair
C	Barker's Island Inner Beach	Douglas	8.1%	149	Fair
C	General King Park Beach	Sheboygan	8.2%	220	Fair
C	Clay Banks Beach 2	Door	8.3%	144	Fair
C	Watercraft Beach	Milwaukee	8.3%	84	Fair
C	Upper Lake Park Beach	Ozaukee	8.5%	141	Fair
C	Harrington State Park Beach South (Pre 2016)	Ozaukee	8.7%	276	Fair
C	Nicolet Beach	Door	8.8%	273	Fair
C	6th Ave W Beach	Ashland	8.8%	147	Fair
C	Sand Bay Beach 1	Door	8.9%	146	Fair
C	North Beach	Racine	9%	1,332	Fair
C	Bay View Park Beach	Milwaukee	9.3%	118	Fair
C	Cedar Beach Rd Beach	Ozaukee	9.7%	145	Fair
C	Prairie Shores	Kenosha	9.7%	31	Fair
C	County Tt Beach	Door	9.7%	31	Fair
C	Murphy Park Beach	Door	9.9%	273	Fair
C	Michigan Boulevard Beach	Racine	10%	990	Fair
C	Wind Point Lighthouse Beach	Racine	10%	80	Fair
C	Parkway Beach	Racine	10.4%	77	Fair
C	Waverly	Ashland	10.5%	275	Fair
C	Simmons Island Beach	Kenosha	10.7%	214	Fair
C	Wisconsin Point Shafer Beach (#2)	Douglas	10.7%	75	Fair
C	Ephraim Beach	Door	11.5%	278	Fair
C	Allouez Bay Beach 2	Douglas	11.5%	78	Fair
D	Hemlock Lane Beach	Door	12.5%	32	Poor
D	Memorial Drive Thiede	Manitowoc	12.6%	421	Poor
D	Washington Avenue Beach	Bayfield	12.8%	242	Poor
D	Amsterdam Beach	Sheboygan	13.1%	84	Poor
D	Eichelman Beach	Kenosha	13.3%	218	Poor
D	Deland Park Beach	Sheboygan	14.2%	162	Poor
D	Point Beach State Forest - Lighthouse Picnic Area Beach	Manitowoc	14.3%	182	Poor
D	Thompson West End Park Beach	Bayfield	14.3%	147	Poor
D	Robert E Lasalle Park	Door	14.8%	135	Poor
D	Maslowski East Beach	Ashland	15.5%	290	Poor
D	Goldenrod Lane Beach	Door	15.6%	32	Poor
D	Point Beach State Forest - Lakeshore Picnic Area Beach	Manitowoc	15.7%	325	Poor
D	Myers Park Beach	Racine	15.9%	82	Poor
D	Selner Park	Kewaunee	16.7%	258	Poor
D	Concordia University	Ozaukee	17.1%	211	Poor
D	Fish Creek Beach	Door	17.2%	279	Poor
D	Neshotah Beach	Manitowoc	17.7%	266	Poor
D	Grant Park Beach	Milwaukee	18.3%	709	Poor
D	Wisconsin Point Lot 3	Douglas	18.3%	82	Poor
D	South Beach	Ozaukee	19.8%	182	Poor
D	Bender Beach	Milwaukee	19.9%	267	Poor
D	Crescent Beach	Kewaunee	20%	260	Poor
D	Pennoyer Park Beach	Kenosha	20.4%	162	Poor
D	Tietjen Beach / Doctor's Park	Milwaukee	24.5%	220	Poor
D	McKinley Beach	Milwaukee	24.7%	1,307	Poor
F	Ymca Beach	Manitowoc	26.5%	49	Failing
F	Otumba Park Beach	Door	30%	287	Failing
F	Pioneer Park	Kewaunee	30%	50	Failing
F	Fischer Park Beaches	Manitowoc	30.5%	164	Failing
F	Klode Park Beach	Milwaukee	31.1%	354	Failing
F	Kreher Park Beach	Ashland	31.8%	157	Failing
F	Hika Park Bay	Manitowoc	32.3%	164	Failing
F	Blue Rail Marina Beach	Manitowoc	32.6%	276	Failing
F	Big Bay Park Beach	Milwaukee	32.9%	149	Failing
F	5 1/2 Mile Road	Racine	35.5%	62	Failing
F	Virmond County Park	Ozaukee	37%	138	Failing
F	Lincoln High School Beach	Manitowoc	38.9%	293	Failing
F	Lakefront Park Beach	Manitowoc	41.1%	207	Failing
F	South Shore Beach - Historical	Milwaukee	45.9%	1,159	Failing
F	Lion's Den Gorge Nature Preserve	Ozaukee	50.6%	180	Failing

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