Maryland is divided into eight congressional districts, each represented by a member of the United States House of Representatives. After the 2010 Census, the number of Maryland's seats remained unchanged, giving evidence of stable population growth relative to the United States at large. Maryland is considered to be one of the most gerrymandered states in the country. 
Maryland is unusual in that its number of districts is at an all-time high and is tied with the state's previous record of seats, which was set and lost in the early nineteenth century.
List of members of the Marylander United States House delegation, their terms, their district boundaries, and the districts' political ratings according to the CPVI. The delegation has eight members, including seven Democrats and one Republican.
|1st||Andrew P. Harris ( R- Cockeysville)||Republican||R+14||January 3, 2011 – present|
|2nd||Dutch Ruppersberger ( D- Timonium)||Democratic||D+11||January 3, 2003 – present|
|3rd||John Sarbanes ( D- Towson)||Democratic||D+13||January 3, 2007 – present|
|4th||Anthony G. Brown ( D- Largo)||Democratic||D+28||January 3, 2017 – present|
|5th||Steny Hoyer ( D- Mechanicsville)||Democratic||D+16||May 19, 1981 – present|
|6th||John Delaney ( D- Potomac)||Democratic||D+6||January 3, 2013 – present|
|7th||Elijah Cummings ( D- Baltimore)||Democratic||D+26||April 16, 1996 – present|
|8th||Jamie Raskin ( D- Takoma Park)||Democratic||D+14||January 3, 2017 – present|
Table of United States congressional district boundary maps in the State of Maryland, presented chronologically.  All redistricting events that took place in Maryland between 1973 and 2013 are shown.
|Year||Statewide map||Baltimore highlight|
- "The national atlas". nationalatlas.gov. Archived from the original on February 22, 2014. Retrieved February 2, 2014.
- Ingraham, Christopher. "America's most gerrymandered congressional districts". The Washington Post. Retrieved 16 July 2015.
- "Digital Boundary Definitions of United States Congressional Districts, 1789–2012". Retrieved October 18, 2014.