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Ecoregional Results - National Wetland Condition Assessment 2021

For each ecoregion, the National Wetland Condition Assessment 2021 assessed information on a number of important indicators related to wetland condition. 

To highlight key findings from each ecoregion, readers can examine and compare results across condition categories for:

  • key stressors
  • changes in lakes between the 2016 and 2021 report*

Results for the "good" category for all indicators are also presented in a graphical format to allow users to examine and compare results more fully across this category. 

Additional ecoregion-level results are available on our interactive NWCA Dashboard, including information on individual indicators across all four condition categories. General descriptions of the ecoregions are available on the NARS Ecoregions page.

  • Coastal Plains
  • Interior Plains
  • Eastern Mountains & Upper Midwest
  • Western Mountains
  • Xeric
Map showing 5 ecoregions used in NWCA

*Changes are presented for lakes 4 hectares and larger only because lakes between 1 and 4 hectare were not assessed in 2007.

National Aquatic Resource Surveys

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Contact Us about National Aquatic Resource Surveys
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on December 26, 2024
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