City of Petaluma, Office of the City Clerk
11 English St.
Petaluma, CA 94952
Tel: 707-778-4360
E-mail: cityclerk@ci.petaluma.ca.us
Fax: 707-778-4554
Registrants must be residents of the city or have at least one partner employed in the city. Open to opposite- and same-sex couples.