Filing began at 9 a.m. Monday for Rockford city alderman races and the mayoral race.
The primary will be February 22, and the election will be held April 5.
Nancy strain, director of the Rockford Board of Elections, says there was an early morning rush to get the papers filed.
Interested individuals have until 5 p.m. on Monday, December 13 to file. The elections will be April 5.