Data and Statistics

Learn how to locate data and statistics on a variety of topics.

Local Resource

Vital Signs
A BNIA publication that shows neighborhood change over time in areas of education, children and family well-being, health, housing and development, sanitation, transit, neighborhood action, and workforce and economic development.

Open Baltimore
A new tool from Baltimore City that provides open access to crime, property taxes, and various city polygon layers.  This tool provides visualization tools as well as download capabilities.  Expect more in the future.

Understanding Census Geography for Maryland and Baltimore

Many people request data specific to Baltimore neighborhoods (Hampden, Charles Village, Mt. Vernon, East Baltimore, etc.).  While this is a reasonable request it is important to note that neighborhood level data from the U.S. Census Bureau does not actually come readily-available. There are essentially 11 levels of geography for the state of Maryland: Metropolitan and Micropolitan Statistical Areas, Counties, County Subdivisions, Places, Census Tracts, Block Groups, Blocks, Congressional Districts, School Districts, State Legislative Districts, and Zip Code Tabulation Areas. Data is not necessarily available for all Census data products at all of these geographic-levels (data just not collected, counts are too small to be meaningful and/or presents a confidentiality problem).  It is essential to have a basic understanding of Census geography before you start working with Census data, and before ever beginning to work with ArcGIS or other mapping tools.

The Baltimore Neighborhood Indicators Alliance (BNIA) has developed a method to create Baltimore Community Statistical Areas (BCSAs) that are stable enough to track changes in city conditions and demographics over time. These BCSAs do comprise more than one neighborhood.

GIS Resources

Current Johns Hopkins faculty and students can obtain a free copy of ArcGIS from the GIS and Data Services Deparment (A-level) for student use (times out after one year) or to install on a JHU-owned machine (both for research purposes only).  Please see the GIS Guide for more information.

We do have ArcGIS Business Analyst accessible on all public machines in the GIS and Data Services area.Maryland Property View is accessible online (most recent data) and on DVD (historical data) for use within the library.

Population and GIS

Baltimore Neighborhood Indicators Alliance Jacob France Institute (BNIA-JFI)
The BNIA-JFI is a valuable local data resource based at the University of Baltimore.  Here you can view information aggregated at the neighborhooD-level on a variety of topics.  They lag slightly in currency, but that is due to the time it takes to process and aggregate the data at the right level (they use Community Statistical Areas - or CSAs).  If what you find online is not sufficient for your research or teaching, they will take special requests when possible for thematic maps or data files.  See the map gallery for readily made thematic maps as well as links to other boundary maps that could help you with your own spatial analysis.  You can download both tabular and geospatial data files from BNIA.

EASI Market Planner (via Conquest/DataPlanet Statistical Datasets)
You can get consumer behavior, expenditures, media use, and much more down to the tract level.  You can export the data as an Excel, SAS or even GIS Shapefile.

Maryland State Data Center (MDSDC)
The MDSDC is an official partner with the U.S. Census Bureau and is based within the Maryland Department of Planning.  From the MSDC you can download data on population estimates, projections and both PDF maps and shapefiles (zip code level street maps!) for MD, its counties, cities, and smaller geographies.

SimplyAnalytics is an online geospatial data product that allows the novice user to quickly create thematic maps and reports using extensive demographic, business and marketing data.  You can analyze data down to the block group. Knowledge of ArcGIS is NOT required.  If you would like to save your work, it is recommended that you create an account separate from your JHED (otherwise choose guest).  Please note that we currently only allow 5 concurrent users.  You are able to download tabular reports and shapefiles.

Social Explorer
This resource is the best resource for downloading the latest (and historic) Census data (Decennial and American Community Survey) at the Baltimore tract/block group (or other small geography) for in-depth analyses with both ArcGIS and statistical packages. Use the online interface to create your table and then download in the format of your choosing (note the .csv format with DBF friendly column labels is best for ArcGIS or for packages not already represented in the interface).  TIP: When opening your .csv file, double click on the top left corner of the table - the corner between A and 1- in order to expand columns to the correct size).  Do NOT forget to download your Data Dictionary as well.

Local Agencies with Statistics

Baltimore City Health Department
A wealth of statistical information about the state of Baltimoreans' health.

Maryland Behavioral Risk Factor Surveillance System (BRFSS)
Ongoing telephone surveillance program designed to collect data on the behaviors and conditions that place Marylanders at risk for chronic diseases, injuries, and preventable infectious diseases. The data collected are used to characterize health behaviors, ascertain the prevalence of risk factors, and target demographic groups with increased needs.

Maryland Domestic Violence Statistics
The Maryland Network Against Domestic Violence (MNADV) has been working since 1980 to eliminate domestic violence in Maryland through education, training, and advocacy.

Maryland Report Card
A collection of data compiled on an annual basis to provide information on school performance to all education stakeholders; provide information to support school improvement efforts; and to provide accountability at the state, school system and school level or reporting educational progress.

Office of Workforce Information and Performance of the Maryland Department of Labor provides up-to-date information on the Maryland Labor force including current employment and unemployment rates, the job market, listings of major employers, commuting patterns and wage data.