Editing Santa Rosa, California (section)

===20th century===
[[File:Sixteenth Annual Convention, California State Federation of Labor, Santa Rosa, October 4 to 8, 1915 Trim.jpg|thumb|right|upright=1.5|Members of the [[California State Federation of Labor]] assemble for their sixteenth annual convention in Santa Rosa, October 1915]]
By 1900, the Pomo population had decreased by 95%.<ref>{{cite book |url=https://books.google.com/books?id=lfPfAQAAQBAJ&pg=PA90 |page=90 |title=Sacred Sonoma: Sacred Sites and Alignments in Sonoma County, California |edition=Revised |first=Beth |last=Winegarner |publisher=Lulu |year=2007 |isbn=9781430320678}}</ref>

According to a 1905 article in the ''[[Press Democrat]]'' reporting on the "Battle of the Trains", the city had just over 10,000 people at the time.

[[File:P&SR Railway station, 4th & Wilson, Downtown Santa Rosa, July 08.jpg|thumb|left|upright=1.2|The former [[Petaluma and Santa Rosa Railroad]] station]]

The [[1906 San Francisco earthquake]] essentially destroyed the entire downtown, but the city's population did not greatly suffer. However, after that period the population growth of Santa Rosa, as with most of the area, was very slow.

Santa Rosa grew following [[World War II]] because it was the location for [[Naval Auxiliary Landing Field Santa Rosa]], the remnants of which are now located in southwest Santa Rosa. The city was a convenient location for San Francisco travelers bound for the [[Russian River (California)|Russian River]].

[[File:Santa Rosa, Empire Building (2012).jpg|thumb|right|upright=0.8|The Empire Building, completed in 1910 and a Sonoma County landmark, seen in the film ''[[Shadow of a Doubt]]'' by [[Alfred Hitchcock]], in December 2021]]

The population increased by two-thirds between 1950 and 1970, with an average of 1,000 new residents a year over the 20-year period. Some of the increase was from annexation of portions of the surrounding area.

In 1958, the United States Office of Civil and Defense Mobilization designated Santa Rosa as one of its eight regional headquarters, with jurisdiction over Region 7, which included [[American Samoa]], [[Arizona]], [[California]], [[Guam]], [[Hawaii]], [[Nevada]], and [[Utah]]. Santa Rosa continued as a major center for [[United States civil defense|civil defense]] activity (under the Office of Emergency Planning and the Office of Emergency Preparedness) until 1979 when the [[Federal Emergency Management Agency]] (FEMA) was created in its place, ending the civil defense's 69-year history.<ref name="OEP">{{cite web|url=https://www.archives.gov/research/guide-fed-records/groups/396.html|title=Records of the office of Emergency Preparedness|access-date=August 30, 2008}}</ref>

When the City Council adopted the city's first modern General Plan in 1991, the population was about 113,000. In the 21 years following 1970, Santa Rosa grew by about 3,000 residents a year—triple the average growth during the previous twenty years.

''Santa Rosa 2010'', the 1991 General Plan, called for a population of 175,000 in 2010. The Council expanded the city's urban boundary to include all the land then planned for future annexation, and declared it would be Santa Rosa's "ultimate" boundary. The rapid growth that was being criticized as [[urban sprawl]] became routine [[infill]] development.

At the first five-year update of the plan, in 1996, the Council extended the planning period by ten years, renaming it ''Vision 2020'' (updated to ''Santa Rosa 2020'', and then again to ''Santa Rosa 2030 Vision''), and added more land and population.

Santa Rosa [[annexation|annexed]] the community of [[Roseland, California|Roseland]] in November 2017.<ref name="annex">{{cite web|url=https://www.srcity.org/371/Roseland-Area-Annexation|title=Roseland Area Annexation|access-date=March 14, 2018}}</ref>