SSURGO dataset information page

Short Description

SSURGO data availability.png
SSURGO data availability as of 2015

Statement: SSURGO (Soil Survey Geographic database) refers to digital soils data produced and distributed by the Natural Resources Conservation Service (NRCS) - National Cartography and Geospatial Center (NCGC).

Abstract: The SSURGO database contains information about soil as collected by the National Cooperative Soil Survey over the course of a century. The information can be displayed in tables or as maps and is available for most areas in the United States and the Territories, Commonwealths, and Island Nations served by the USDA-NRCS. The information was gathered by walking over the land and observing the soil. Many soil samples were analyzed in laboratories. The maps outline areas called map units. The map units describe soils and other components that have unique properties, interpretations, and productivity. The information was collected at scales ranging from 1:12,000 to 1:63,360. More details were gathered at a scale of 1:12,000 than at a scale of 1:63,360. The mapping is intended for natural resource planning and management by landowners, townships, and counties. Some knowledge of soils data and map scale is necessary to avoid misunderstandings.

Data format

Data type: Surface properties
Data origin: Measured
Data format: ArcExport, Shapefile, ASCII
Other format: Arc coverage
Data resolution: 1:12,000 to 1:63,360
Datum: NAD 1983 for the main land, Alaska, Hawaii, American Samoa, and the Pacific Islands Area each use a

different variation of Albers Equal Area Conic coordinate system and a horizontal datum of WGS 1984.

Data Coverage

Spatial data coverage: United States of America
Temporal data coverage: Time snap shot
Time period covered: 2000s


Download data:
Data source: 053627


  • [[Key references dataset::Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey. Available online at Accessed [month/day/year].]]