Datasets About Order by Relevance Name Ascending Name Descending Last Modified Popular Go 1 dataset found Projects: UHC Tags: Imperviousness Groups: Climate Formats: CSV Filter Results Average percent impervious National Land Cover Dataset (NLCD) Contiguous US Average percent impervious National Land Cover Dataset (NLCD) Tract Contiguous US 2016 to 2019 CSV .sas7bdat PDF