It's a big night for Congressional incumbents in the Tampa Bay area.

Unofficial results show the incumbents retaining all seven seats that were up for grabs.

U.S. House District 9

Incumbent Rep. Alan Grayson, D-Orlando, has won re-election in the 9th congressional district. He received 54 percent of the vote.

Grayson's challenger, real estate agent and Republican activist Carol Platt, received 44 percent of the vote, while Marko Milakovich, who is running without party affiliation, received 3 percent of the vote.

The congressional district includes northeastern Polk County, central Orange County and most of Osceola County.

U.S. House District 10

Incumbent Rep. Daniel Webster has retained his seat in the U.S. House of Representatives, garnering 59 percent of the vote. His challenger, Democrat Michael McKenna, received 41 percent of the vote.

The 10th congressional district includes parts of northern Polk County, western Orange County and most of Lake County.

U.S. House District 11

Incumbent Rep. Richard Nugent won the race with 68 percent of the vote.

Small business owner Dave Koller, who ran as a Democrat, received 32 percent of the vote.

The 11th congressional district includes Citrus, Hernando, Sumter and central Marion County.

U.S. House District 13

Incumbent Rep. David Jolly received 76 percent of the vote, defeating Libertarian Lucas Overby, who received 24 percent.

Jolly, R-Indian Shores, who took office less than seven months ago in a special election, which was held after longtime Rep. C.W. Bill Young passed away.  Overby also ran in the special election.

The 13th congressional district covers most of Pinellas County.

U.S. House District 15

Incumbent Rep. Dennis Ross, R-Lakeland, has retained his seat in Congress. He received 60 percent of the vote.

His challenger, Democrat Alan Cohn, a former journalist who lives in north Tampa, received 40 percent of the vote.

The 15th congressional district includes northern Hillsborough County and Polk County.

U.S. House District 16

Incumbent Rep. Vern Buchanan has won the District 16 race, receiving 61 percent of the vote.  Buchanan, R-Longboat Key, who has held the seat since 2007.

His challenger was Democrat Henry Lawrence, a former NFL player who was a two-time Pro Bowler. Lawrence received 39 percent of the vote.

The 16th congressional district includes Manatee and Sarasota counties.

U.S. House District 17

Incumbent Rep. Tom Rooney defeated Democrat Will Bronson. This is the second time the pair has faced off in this race, and the second time Bronson has lost.

The 17th congressional district includes Hillsborough, Manatee, Polk, Hardee, DeSoto, Charlotte, Highlands, and Glades counties.