Wisconsin Wetlands: County by County Acreage

Wetland acreage is based on 1978-79 aerial photography, unless otherwise noted.

County	Total Surface Area (Acres)	Acres of Wetland	% of County Mapped As Wetland	Wetlands as % of Statewide Total	Minimum Map Unit Size (Acres)
Adams	414,589	52,268	12.6%	1.0%	2
Ashland-1991	668,103	168,388	25.2%	3.1%	2
Barron	552,248	42,640	7.7%	0.8%	2
Bayfield-1991	944,902	80,252	8.5%	1.5%	2
Brown-1986	338,375	28,257	8.4%	0.5%	2
Buffalo	438,092	44,934	10.3%	0.8%	5
Burnett	525,790	122,194	23.2%	2.3%	5
Calumet	204,714	24,736	12.1%	0.5%	5
Chippewa	646,703	78,399	12.1%	1.5%	2
Clark	778,048	100,338	12.9%	1.9%	5
Columbia	495,274	75,404	15.2%	1.4%	5
Crawford	366,561	27,331	7.5%	0.5%	5
Dane-1986	769,392	51,418	6.7%	1.0%	2
Dodge	564,734	110,558	19.6%	2.1%	2
Door-1987	308,959	50,990	16.5%	0.9%	2
Douglas-1991	837,924	194,169	23.2%	3.6%	2
Dunn	545,329	44,222	8.1%	0.8%	5
Eau Claire	408,104	43,646	10.7%	0.8%	5
Florence	312,373	49,974	16.0%	0.9%	5
Fond du Lac	462,704	69,128	14.9%	1.3%	5
Forest	649,053	161,056	24.8%	3.0%	5
Grant	734,656	22,869	3.1%	0.4%	5
Green	373,790	12,301	3.3%	0.2%	2
Green Lake	226,755	58,816	25.9%	1.1%	5
Iowa	488,157	16,500	3.4%	0.3%	5
Iron-1991	484,660	151,065	31.2%	2.8%	2
Jackson	631,862	113,070	17.9%	2.1%	2
Jefferson-1986	356,521	59,280	16.6%	1.1%	2
Juneau	491,325	122,485	24.9%	2.3%	2
Kenosha	174,605	17,012	9.7%	0.3%	2
Kewaunee-1989	219,299	27,436	12.5%	0.5%	2
La Crosse	289,777	37,667	13.0%	0.7%	2
Lafayette	405,510	3,116	0.8%	0.1%	5
Langlade	558,558	108,800	19.5%	2.0%	5
Lincoln	565,147	121,530	21.5%	2.3%	5
Manitowoc-1989	378,600	48,758	12.9%	0.9%	2
Marathon-1987	988,848	172,293	17.4%	3.2%	2
Marinette-1989	897,262	212,997	23.7%	4.0%	2
Marquette	291,541	68,881	23.6%	1.3%	5
Menominee	229,117	33,545	14.6%	0.6%	5
Milwaukee	154,601	4,466	2.9%	0.1%	2
Monroe-1988	576,596	56,842	9.9%	1.1%	2
Oconto-1989	638,777	159,717	25.0%	3.0%	2
Oneida	719,826	237,546	33.0%	4.4%	5
Outagamie	409,849	74,221	18.1%	1.4%	5
Ozaukee	148,456	16,265	11.0%	0.3%	2
Pepin	148,683	7,235	4.9%	0.1%	5
Pierce	368,971	7,397	2.0%	0.1%	5
Polk	587,088	60,921	10.4%	1.1%	5
Portage-1992	516,076	92,748	18.0%	1.7%	2
Price	801,721	252,992	31.6%	4.7%	5
Racine	213,204	13,529	6.3%	0.3%	2
Richland	375,209	15,210	4.1%	0.3%	5
Rock	461,148	19,424	4.2%	0.4%	2
Rusk	584,439	113,005	19.3%	2.1%	5
St. Croix	462,054	14,254	3.1%	0.3%	2
Sauk	536,138	32,145	6.0%	0.6%	5
Sawyer	804,180	162,641	20.2%	3.0%	5
Shawano	571,244	127,778	22.4%	2.4%	5
Sheboygan-1987	328,739	40,447	12.3%	0.8%	2
Taylor	623,973	120,979	19.4%	2.2%	5
Trempealeau	469,855	43,386	9.2%	0.8%	5
Vernon	508,770	14,511	2.9%	0.3%	5
Vilas	558,593	116,866	20.9%	2.2%	5
Walworth	355,458	28,746	8.1%	0.5%	2
Washburn	518,236	79,140	15.3%	1.5%	5
Washington	275,743	42,652	15.5%	0.8%	2
Waukesha	355,587	54,913	15.4%	1.0%	2
Waupaca	480,729	112,761	23.5%	2.1%	5
Waushara	400,695	58,725	14.7%	1.1%	2
Winnebago-1986	280,723	44,380	15.8%	0.8%	2
Wood	507,428	130,725	25.8%	2.4%	2
TOTALS	34,760,750	5,385,290		15.5%

More Information

For more information on wetland acreages, please contact:

Lois Simon
Wetlands Inventory Coordinator
(608) 266-8852

Last Revised: Thursday March 13 2008