Maps/GIS Downloads

Census 2020 Geographies and Data​​​​​​​

On-line Mapping

2020 Redistricting Address Look-up

Congressional and Legislative Districts

Following each decennial Census of the United States, Maryland, like all states, must draw new Congressional districts (U.S. Constitution Article I, Section 2) and State Legislative districts (Maryland Constitution Article III, Section 5) based on the principle of one-person-one-vote.


​Zipcode Boundary Files


Historical Census Maps​

2010 Redistricting Address Look-up

Census 2010 Boundary Maps

Census 2000 Boundary Maps

5. Block
9. Components of 2000 Statistical Areas: (6/09)
  • ​​​​Metropolitan Statistical Area : Map and Data (XLS PDF)
  • Micropolitan Statistical Area : Map and Data (XLS PDF)
  • Combined Statistical Areas : Map and Data (XLS PDF)​​​
8. Download Tiger Shape Files by Geographic Level:​

Census 2000 Thematic Maps

  1. SF1 - General Demographic Characteristics : County | Census Tract
  2. SF3 -Select Social, Economic and Housing Characteristics : County | Place | Census Tract​

Census 1990 Boundary Maps in PDF format

Human Trafficking GET HELP

National Human Trafficking Hotline - 24/7 Confidential

1-888-373-7888 233733 More Information on human trafficking in Maryland

Customer Service Promise

The State of Maryland pledges to provide constituents, businesses, customers, and stakeholders with friendly and courteous, timely and responsive, accurate and consistent, accessible and convenient, and truthful and transparent services.

Take Our Survey

Help Stop Fraud in State Government

The Maryland General Assembly’s Office of Legislative Audits operates a toll-free fraud hotline to receive allegations of fraud and/or abuse of State government resources. Information reported to the hotline in the past has helped to eliminate certain fraudulent activities and protect State resources.

More Information