www.dnr.illinois.gov

Pat Quinn, Governor

DNR Links Skip to Content Skip to State Links

 IDNR Home
 IDNR Home (new)
 Agency Offices
 Disabled Outdoors
 Freedom of Information Act
 Get Involved
 Grant Info
 Great Lakes Restoration
 Hunting
 Fishing
 License / Permit / Register
 Kids & Education
 Law Enforcement
 Mandatory Safety Programs
 Lodges / Leasing
 More Links
 Outdoor Recreation
 Parks & Recreation
 Press Releases
 Publications
 State Museums
 World Shooting & Recreational Complex
 DNR A to Z

 DNR
 Illinois

  Wetlands

NATIONWIDE STATUS

Wetland loss is a common trend throughout the entire country. At the time of Colonial America, the area that now constitutes the United States (including Alaska and Hawaii) contained an estimated 392 million acres of wetlands. Over the course of 200 years, however, 22 of the 50 states have lost over 50 percent of their original wetland acreage. The conterminous 48 states collectively have lost approximately 116 million acres (over 53 percent) of their presettlement wetlands.

This means that on average, in the lower 48 states between the 1780s and 1980s wetlands were lost at a rate of over 60 acres/hour. Figure 3-5 compares wetland loss in Illinois with the entire United States (Dahl 1990).

When compared with other states, the scope of wetland loss in Illinois becomes more clear. Illinois ranks sixth in overall percentage of wetland loss, behind California, Indiana, Iowa, Missouri, and Ohio. In terms of acres of wetland loss, Illinois ranks fifth. Only Florida, Texas, Louisiana, and Arizona have lost more acres. Because of the large percentage and acreage of wetlands that have been lost, Illinois is in the top 10 percent of states with the greatest overall wetland loss over the past 200 years (Dahl 1990).

 [ History | Nationwide Status | Trends | Conclusion ]

Return to Wetlands Homepage

Wetlands

 Wetlands Home Page
 Understanding Wetlands
 Functions and Values
 Status and History
 Wetland Committees
 Mitigation Banking
 Regulations
 Restoration
 Education/Outreach
 Illinois Wetland Types
 National Wetland Inventory
 Publications
 Glossary Acronyms
 Literature Cited

CopyrightŠ 2014 Department of Natural Resources
Accessibility    Contact    FAQs    Podcasts    Privacy    Social Networking