Health care advocate and political activist Kim Klingler (right) announced her candidacy for County Board this afternoon, bringing the already-crowded field of Democrats candidates hoping to replace state Senator-elect Barbara Favola to six.

In her announcement, Klingler said she’s running because she wants to “serve and represent our community.”

“I want to continue to work on putting people first,” she wrote. “I want to do this in a fiscally responsible way, promoting efficiency, transparency, and our values.”

Klingler also posted a YouTube video to accompany the campaign announcement.

The field of announced County Board candidates now includes Klingler, nonprofit project manager Melissa Bondi, Arlington County Planning Commission member Peter Fallon, Iraq war vet Terron Sims II, Arlington NAACP president Elmer Lowe, and — as of last night — school board member Libby Garvey.

The candidates will face off in a special election next year. The exact timing of the special election depends on when Favola formally resigns her County Board seat.