Petaluma, since 1858

Petaluma is a city in Sonoma County, California, United States, located in the North Bay region of the San Francisco Bay Area. We’re gathering its old postcards, photos and papers from public archives right now.

Photo: Colin Marquardt, Colin Marquardt

168 years of Petaluma

Every find lands on the timeline as it comes in. Gaps show where the archives go quiet, and where neighbors can help.

1858established

59,776people today

0old images found

What we’re checking

About a minute, just this once. After that it opens instantly for everyone. Open the Guide in a new tab ↗