A special election will be held Nov. 19 to fill District 5, a graduate student seat, and districts 17, 18, 20 and 21, which are all off-campus seats.
Student Body President Jen Daum said the districts became empty for different reasons.
"People move out of the districts, resign due to personal reasons, or they decide not to take the seat (after being elected)," she said.
The last special election, held Sept. 24, left two seats vacant. Last month, Matt O'Brien, the former speaker pro tem, resigned after moving out of his district.
Student government officials said they have been working hard to advertise the open positions to attract potential leaders.
Speaker Tony Larson e-mailed more than 100 student leaders to inform them of the open seats.
"We've done what we can," Daum said. "I believe all seats will be filled in the next special election."
Larson said Congress still is doing a good job of representing the student body, even with the empty seats. "Right now, we're not having trouble functioning with just five districts open," he said.
Daum said she is looking forward to the empty seats being filled.