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North Central, PA Regional Planning and Development Commission (1)
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Ann Arbor Data Catalog (35)
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Ashland County, WI GIS Open Data Portal (9)
Athens Conservancy GIS Center (53)
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Baltimore County Open Data Portal (207)
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Big Stone County Open Data (12)
Big Ten Academic Alliance Geospatial Information Network (8)
Brandeis University (1)
Brown County, Ohio (1)
CMAP (Chicago Metropolitan Agency for Planning) Data Hub (51)
Calvert County Open GIS Data Portal (16)
Capital Area Open Data Portal (5)
Carroll County GIS Open Data (27)
Carver County GIS Data (42)
Cass County GIS Downloadable Files (10)
Center for Ancient Middle Eastern Landscapes, Institute for the Study of Ancient Cultures, University of Chicago (8,792)
Center for Rural Pennsylvania (1)
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Cook Central (236)
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Cornell (473)
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Evansville, Vanderburgh County, Indiana Open Data Collection (50)
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GeoDa Data and Lab (73)
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Grant County Open Data Hub (28)
Hamilton County, Indiana Open Data Collection (42)
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Harvard (183)
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Hoosier Resilience Index: Indiana (17)
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Humanitarian Data Exchange (6,701)
ICPSR (Inter-university Consortium for Political and Social Research) (1)
Illinois DOT Open Data Portal (99)
Illinois Geospatial Data Clearinghouse (192)
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Indiana University (14,884)
IndianaMap (374)
Iowa Emergency Operations Center (1)
Iowa Geodata (235)
IowaDOT Open Data (546)
Kenosha County, WI GIS Open Data Portal (31)
Lake County Illinois Open Data Portal (53)
Land Records Data Portal of Columbia County, WI (85)
LandScan Global Population Database (23)
Library of Congress Geography and Map Division (1)
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Lorain County GIS Data (85)
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MapHub (1)
Maryland National Capital Parks and Planning Commission (1)
Maryland iMap (1,249)
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Pennsylvania Department of Conservation and Natural Resources Open Data Portal (57)
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Pennsylvania State University (3,888)
Peoria County GIS Open Data Portal (70)
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PolicyMap (387)
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Prince George's County Open Data Portal (13)
Princeton (1,004)
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Ramsey County Open Data (36)
Renville County Open GIS Data (44)
Russian Military Topographic Map Collection (3)
Rutgers University-New Brunswick (4,554)
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The Ohio State University (255)
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U.S. Fish and Wildlife Service Open Data (1,972)
UM Matthaei Botanical Gardens and Nichols Arboretum (62)
UW Digital Collections Center (2,596)
UW-Madison Robinson Map Library (6,077)
University of Chicago (71)
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University of Illinois Urbana-Champaign (2,501)
University of Iowa (3,541)
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Waukesha County GIS Download (37)
Waupaca County GIS Download (29)
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Western Pennsylvania Regional Data Center Open Data (52)
Wilkin County, Minnesota Open Data (17)
Wisconsin Geological and Natural History Survey (61)
Wisconsin Rapids Online Map Portal (18)
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WisconsinView (2,170)
Wood County Open Data Portal (13)
Yellow Medicine County Hub (5)
York County, PA GIS Open Data Portal (50)
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