Telecom Valley

Petaluma is a city in Sonoma County, California, located in the North Bay region of the San Francisco Bay Area. Its population was 59,776 according to the 2020 census.Petaluma's name comes from the Miwok village named Péta Lúuma that was located on the banks of the Petaluma River. The modern city originates in Rancho Petaluma, granted in 1834 to famed Californio statesman Mariano Guadalupe Vallejo, considered to be the founder of Petaluma. Today, Petaluma is known for its well-preserved historic center and as a local hub for the Petaluma Valley region of Sonoma County.

The Ellis--Martin House, at 1197 E. Washington St. in Petaluma, California, is a Craftsman style house which was built in 1908. It was listed on the National Register of Historic Places in 2006.It was designed by Petaluma architect Brainerd Jones and was built for John D. Ellis, a farmer, by Santa Rosa-based builder Frank A. Sullivan. It was home of Leopold Martin and his descendants, of a Marin County ranching family, from 1920 to 1998.

Lynch Creek is a 7.1-mile-long (11.4 km) stream in Sonoma County, California, United States which discharges into the Petaluma River.

Washington Creek is a southward-flowing stream in Sonoma County, California, United States which enters the city of Petaluma and discharges to the Petaluma River.

Petaluma Downtown station is a Sonoma–Marin Area Rail Transit station in Petaluma. It opened to preview service on June 29, 2017; full commuter service commenced on August 25, 2017. A new platform and facilities were constructed adjacent to the historic Northwestern Pacific Railroad station building, which opened in 1914. It is the system's first station to open in the city, with Petaluma North station set to open later.

The Old Petaluma Opera House (also known as the Maclay Building) is a historic building located in downtown Petaluma, California.

Mystic Theatre, also known as McNear's Mystic Theatre, is a historic building and music venue built in 1911, and located in Petaluma, California. The McNear's Saloon and Dining House is housed next door in an adjoined building. The building is part of the Petaluma Historic Commercial District, which has been listed on the National Register of Historic Places since March 31, 1995.

The United States Post Office in Petaluma, California, is located at 120 West Fourth Street. The building, completed in 1933, has been listed on the National Register of Historic Places since 1985.The building is in the Spanish Colonial Revival style with some Gothic touches. Its front side (facing Fourth Street) presents five rounded arches surmounted by a terracotta frieze. The front portion of the roof is covered with interlocking clay tiles. Its NRHP nomination states: "The Petaluma Post Office derives its significance from its relation to the federal building programs of the 1920s and 1930s as they developed in California. It is an example of a style transitional between the classicism of the twenties and the Starved Classical style of the thirties."

The Free Public Library of Petaluma (also Old Carnegie Library, Carnegie Free Library and Petaluma Historical Library and Museum) is a research library and history museum at 20 Fourth Street in Petaluma, Sonoma County, California, US. Built in 1904 as a Carnegie Free Library, it was designed by Brainerd Jones as his first major commission before the architect gained regional recognition. In the 1970s, it was re-purposed as a research library and historical museum, known as the Petaluma Historical Library and Museum. The building is listed on the National Register of Historic Places.

The Phoenix Theater is an all-ages nightclub located in Petaluma, California. The club has been in existence since 1905 and has changed in both structure and purpose, mostly due to severe damage caused by several fires.

The Philip Sweed House, in Petaluma, California, is a Queen Anne-style house built in 1892. It has sometimes, mistakenly, been reported as the "Philip Swede House." The house is located at the intersection of Keokuk and Prospect Streets. It was listed on the National Register of Historic Places in 1992. Sweed, though of limited formal education himself, was a champion of public education and served on the city's Board of Education from 1893 to 1925.

St. Vincent de Paul High School is a private, Roman Catholic high school in Petaluma, California. It is located in the Roman Catholic Diocese of Santa Rosa in California Alumni have attended Brown University, Harvard University, Stanford University, and schools in the University of California system, among others.