She said she spent a lot of time talking with voters at their homes.
“I'm just very grateful the voters responded so well and that they turned out and they came to the polls,” Floyd said.
Floyd will face Republican Aaron Kaspereit, of Oklahoma City, in the Nov. 6 general election. The winner will succeed Rep. Al McAffrey, D-Oklahoma City, who was elected in February to the state Senate.
In the other House race, Jerry Rains, of Muskogee, won the Democratic runoff primary election race in House District 14 with 58.5 percent of the vote.
He received 1,522 votes compared with 1,080 for Bobby Jefferson, of Muskogee. Rains will face Republican Arthur Hulbert, of Fort Gibson, in November. The winner of that race will succeed Rep. George Faught, R-Muskogee, who resigned his post to run for Congress.
The runoff elections are for candidates who failed to get a majority of votes cast among a field of three or more contenders in the June 26 primary election.
All the winners Tuesday were the top vote-getters in the June primaries.
Republicans, who had a 67-31 advantage when this year's session adjourned in late May, will have a 47-20 majority after Tuesday's election results. The 34 other seats will be filled in the Nov. 6 general election.