National Lakes Assessment 2022 Results
The National Lakes Assessment reports on the condition of lakes and reservoirs in the conterminous United States.
Key Findings
High-level summary of findings from the 2022 survey.
Report and Data
View the public report, technical support document, and data files.
Ecoregional Results
Information on the NLA indicators for the nine ecological regions.
NLA Data Dashboard
View results and download customized charts with the NLA dashboard.