Washington (CNN) - Georgia Republican Nathan Deal's resignation from the U.S. House late Sunday night creates a fifth vacancy in that chamber, the latest in a number of membership changes since the 111th Congress first convened in January 2009.
Nine other House districts have had vacancies at some point this term, mostly due to resignations.
Besides Deal's seat, the districts currently without a sitting representative are the 29th district of New York, which opened up upon the resignation of Democrat Eric Massa, the 1st district of Hawaii, which became vacant when Democrat Neil Abercrombie stepped down to focus on his gubernatorial campaign, the 12th district of Pennsylvania, which became vacant upon the death of Democrat John Murtha, and the 19th district of Florida, which had been represented by Democrat Robert Wexler. Deal, who also stepped down to focus on his gubernatorial bid, originally had planned to resign earlier this month but held off until after Sunday's heath care vote.
Although the stream of vacancies this Congress is greater than in most years, it has yet to outpace those of the 110th Congress, which had six vacancies roughly at this point two years ago and saw a total of 14 vacancies over the course of 2007 and 2008.
Barring any further resignations or deaths, the number of vacancies should remain at five until April 13, the date of the special election to replace Wexler.
Departing members of the 111th Congress
1/2/2009 Rahm Emanuel (D-IL05) resigns to become White House Chief of Staff
1/26/2009 Kirsten Gillibrand (D-NY20) resigns to take Hillary Clinton's U.S. Senate seat
2/24/2009 Hilda Solis (D-CA32) resigns to become Labor Secretary
6/27/2009 Ellen Tauscher (D-CA10) resigns to join State Department
9/21/2009 John McHugh (R-NY23) resigns to become Army Secretary
1/3/2010 Robert Wexler (D-FL19) resigns
2/8/2010 John Murtha (D-PA12) dies
2/28/2010 Neil Abercrombie (D-HI) resigns to focus on gubernatorial campaign
3/8/2010 Eric Massa (D-NY29) resigns
3/21/2010 Nathan Deal (R-GA09) resigns to focus on gubernatorial campaign