List of members of the Council of the District of Columbia

These lists include all members of the Council of the District of Columbia since its creation. All members are elected to 4-year terms (except for the initial 2-year terms for half the members elected to the first council, in 1974).

The chairman who served the longest uninterrupted period of time is Linda A. Cropp, who served 9 years, 146 days, from August 8, 1997, to January 1, 2007. David A. Clarke served the longest as chairman, counting all terms (with interruptions), serving 10 years, 185 days (from January 3, 1983, to January 3, 1991, and again from September 27, 1993, to his death on March 28, 1997). The chairman who served the shortest period of time is Kwame R. Brown, who served 521 days from January 2, 2011, to June 6, 2012.

The Council member who served the longest uninterrupted period of time is Jack Evans, who served 23 years and counting since being sworn in on May 13, 1991. Evans also holds the record for seving the longest period of time counting interrupted service. The Council member who served the shortest period of time is Arrington Dixon, who served 121 days between his special appointment to an At-Large seat on August 15, 1997, and December 14, 1997 (when David Catania was sworn in after winning a special election on December 3, 1997).

The At-Large Council member who served the longest uninterrupted period of time is Hilda Mason, who served 21 years, 273 days from April 2, 1977, to January 1, 1999. Mason also holds the record for serving the longest period of time counting interrupted service. The Group 1 At-Large Council member who served the longest uninterrupted period of time is John L. Ray, who served 17 years, 359 days from January 8, 1979, to January 1, 1997. Ray also holds the record for the Group 1 At-Large Council member serving the longest period of time counting interrupted service. The Group 1 At-Large Council member who served the shortest period of time is Arrington Dixon. The Group 2 At-Large Council member who served the longest uninterrupted period of time is Hilda Mason. Mason also holds the record for the Group 2 At-Large Council member serving the longest period of time counting interrupted service. The Group 1 At-Large Council member who served the shortest period of time is Sekou Biddle, who served 123 days from his appointment on January 7, 2011, until May 9, 2011 (his successor, Vincent Orange, was sworn in on May 10 after a special election held April 26, 2011).

The chairman is elected in years divisible by 2 but not by 4: 1974, 1978, ..., 2010, 2014, etc., except to fill a vacancy.

There are four at-large members at any time, elected in groups of two. Group 1 was elected in 1974 to 2-year terms and elected in years divisible by 4 thereafter: 1976, 1980, ..., 2008, 2012, etc. Group 2 is elected in years divisible by 2 but not by 4: 1974, 1978, ..., 2010, 2014, etc. In 1974, Group 1 consisted of Marion Barry and Jerry A. Moore, Jr.

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