These links connect you with spatial data like census tracts and political boundaries and a wide range of sociological attribute data like demographics, economics and more.
U. S. Federal Government Resources
Links to datasets produced by Federal Agencies
Links to data generated and/or collected by the Maryland State government and the City of Baltimore.
Links to data sources collected and curated by universities, and NGOs.
American FactFinder provides access to data about the United States, Puerto Rico and the Island Areas. The data in American FactFinder come from several censuses and surveys.
Browse data sets by topic, or search the data catalog. You can limit your results to geospatial data sets. Federal and non-federal (state, county, municipal, etc.) data sources are available.
Global Change Master Directory via NASA/Goddard Space Flight Center
An assortment of survey and other data gathered from around the world
Maryland OpenData Main portal for Statewide data on a wide range of themes.
MD iMap Main portal for state wide spatial data on a wide range of themes.
Baltimore Open City GIS Data is Baltimore's public platform for exploring and downloading open data, discovering and building apps, and engaging to solve important local issues. Analyze and combine Open Datasets using maps, as well as develop new web and mobile applications.
The Inter-university Consortium for Political and Social Research is An international consortium of more than 750 academic institutions and research organizations, providing data access, curation, and methods of analysis for the social science research community. The ICPSR maintains an archive of more than 250,000 files of research in the social and behavioral sciences. It hosts 21 specialized collections of data in education, aging, criminal justice, substance abuse, terrorism, and other fields.
Housed at the Institute for Quantitative Social Science (IQSS) at Harvard. Claims to host the world's largest collection of social science research. It holds data from many researchers and institutions in addition to Harvard.
Statista provides access to statistics and studies gathered by market researchers, trade organizations, scientific publications, and government sources on over 600 industries. This will link to statistics, but not downloadable datasets, You might be able to follow the sources to the data providers.