Maps/GIS Downloads

Census 2020 Geographies and Data​​​

​Zipcode Boundary Files

2017/2018​ | 2015/2016  |  2013/2014  |  2012  |  2011  |  2010  |  2009  |  2008  |  2007  |  2006  |  2004  |  2002  |  2000  |  1997  

Note to the users:
In 1993, the Maryland Department of Planning and the Maryland State Highway Administration entered into a Data Base Usage Agreement with Bell Atlantic and Data Chromatics, Inc. to develop an enhanced street address map for Maryland. Zip Code boundary area files were one of the products derived from this partnership. The resulting boundary area files were intended to improve the cartographic quality and accuracy of the zip code boundary area files derived from the U.S. Census Bureau's post 1990 Census TIGER\Line Files (based on the Census Bureau's zip code tabulation areas, ZCTAs). Subsequent iterative improvements to the Zip Code boundary area files have been made using premise address information associated with mapped parcel records as provided in the Maryland Department of Planning's MdProperty View GIS tax map and parcel record DVD product. The resulting files are meant to serve as a "good approximation" of zip codes as polygons (which in reality they are not) but are not official Zip Code maps and are not meant to be a substitute for any products offered by the U.S. Postal Service, the official source for zip code information. While there are no restrictions on their use we do recommend that they are best used with MdProperty View and that MDP makes no guarantee or warranty regarding the files. ​​

Historical Census Maps​

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

On-line Mapping

Priority Funding Area Interactive Map​

2010 Redistricting Address Look-up

Public Sch​ool Locations (Coming soon)

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 principal of one-person one-vote.

Main Menu for Congressional and Legislative Districts 


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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.

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