Solano County (/səˈlɑːn/ ) is a county located in the U.S. state of California. As of the 2020 census, its population was 453,491.[6] The county seat is Fairfield.[7]

Solano County
Solano County
Images, from top down, left to right: The Solano County Government Center in downtown Fairfield, Benicia Capitol State Historic Park, Vacaville Hills
Flag of Solano County
Official seal of Solano County
Map
Interactive map of Solano County
Location in the state of California
Location in the state of California
Coordinates: 38°16′N 121°56′W / 38.27°N 121.94°W / 38.27; -121.94
CountryUnited States
StateCalifornia
RegionSan Francisco Bay Area
IncorporatedFebruary 18, 1850[1]
Named forChief Solano of the Suisun people
County seatFairfield
Largest cityVallejo (population)
Fairfield (area)
Government
 • TypeCouncil–Administrator
 • Body
  • Erin Hannigan
  • Monica Brown
  • Wanda Williams
  • John Vasquez
  • Mitch Mashburn
 • ChairJohn Vasquez
 • Vice ChairMonica Brown
 • County Administrator[3]William F. Emlen
Area
 • Total
906 sq mi (2,350 km2)
 • Land822 sq mi (2,130 km2)
 • Water84 sq mi (220 km2)
Highest elevation2,822 ft (860 m)
Population
 (2020)
 • Total
453,491
 • Density552/sq mi (213/km2)
GDP
 • Total$35.408 billion (2022)
Time zoneUTC−8 (Pacific Time Zone)
 • Summer (DST)UTC−7 (Pacific Daylight Time)
Area code707
FIPS code06-095
GNIS feature ID277312
Congressional districts4th, 7th, 8th
Websitewww.solanocounty.com

Solano County comprises the Vallejo–Fairfield metropolitan statistical area, which is also included in the San JoseSan FranciscoOakland, combined statistical area.[8] Solano County is the northeastern county in the nine-county San Francisco Bay Area region.

A portion of the South Campus at the University of California, Davis, is in Solano County.

History

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Solano County was one of the original counties of California, created in 1850 at the time of statehood.

At the request of General Mariano Guadalupe Vallejo, the county was named for Chief Solano of the Suisun people, a Native American tribe of the region and Vallejo's close ally. Chief Solano at one time led the tribes between the Petaluma River and the Sacramento River. The chief was also called Sem-Yeto, which signifies "brave or fierce hand." The chief was given the Spanish name Francisco Solano during baptism at the Catholic Mission, and is named after the Spanish Franciscan missionary, Father Francisco Solano. "Solano" is a common surname in the north of Spain, especially in Navarra, Zaragoza, and La Rioja.

Travis Air Force Base is located just east of Fairfield. Between 2017 and 2023, California Forever purchased over 50,000 acres of land in the county for an estimated $900 million to develop a new city.[9][10]

Region

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Solano County is the easternmost county of the North Bay.[8] As such, it is sometimes reported by news agencies as being in the East Bay.[11][12][13] Additionally, a portion of the county extends into the Sacramento Valley, geographically.

Geography

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According to the U.S. Census Bureau, the county has a total area of 906 square miles (2,350 km2), of which 84 square miles (220 km2), comprising 9.3%, are covered by water.[14]

Solano County had several cinnabar mines that were worked in the first half of the twentieth century, including the Hastings Mine and St. John's Mine.[15]

Adjacent counties

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National protected area

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Flora and fauna

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Solano County has a number of rare and endangered species, including the Delta green ground beetle,[16] the wildflower Lasthenia conjugens, commonly known as Contra Costa goldfields,[17] and the annual plant Legenere limosa or false Venus' looking glass.[18]

Transportation

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Major highways

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Highway 37 Bridge over Napa River in Vallejo
 
A train sits behind a stop sign at an intersection in Cordelia, California

Public transportation

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Solano County is served by several transit agencies:

Each agency interconnects with the others, enabling transit trips throughout the county. Service also connects with BART stations in Contra Costa County. Transit links are provided to Napa, Yolo and Sacramento counties as well.

Greyhound and Amtrak provide long-distance intercity service.

Airports

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General aviation airports in Solano County that are open to the public are the Nut Tree Airport and Rio Vista Municipal Airport.

Demographics

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Historical population
CensusPop.Note
1850580
18607,1691,136.0%
187016,871135.3%
188018,4759.5%
189020,94613.4%
190024,14315.3%
191027,55914.1%
192040,60247.3%
193040,8340.6%
194049,11820.3%
1950104,833113.4%
1960134,59728.4%
1970169,94126.3%
1980235,20338.4%
1990340,42144.7%
2000394,54215.9%
2010413,3444.8%
2020453,4919.7%
2023 (est.)449,218[19]−0.9%
U.S. Decennial Census[20]
1790–1960[21] 1900–1990[22]
1990–2000[23] 2010[24] 2020[25]

2020 census

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Solano County, California – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
Race / Ethnicity (NH = Non-Hispanic) Pop 2010[24] Pop 2020[25] % 2010 % 2020
White alone (NH) 168,628 155,125 40.80% 34.21%
Black or African American alone (NH) 58,743 60,051 14.21% 13.24%
Native American or Alaska Native alone (NH) 1,864 1,624 0.45% 0.36%
Asian alone (NH) 59,027 70,953 14.28% 15.65%
Pacific Islander alone (NH) 3,243 3,775 0.78% 0.83%
Other Race alone (NH) 1,463 2,988 0.35% 0.66%
Mixed Race or Multi-Racial (NH) 21,020 30,820 5.09% 6.80%
Hispanic or Latino (any race) 99,356 128,155 24.04% 28.26%
Total 413,344 453,491 100.00% 100.00%

2014

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A 2014 analysis by The Atlantic found Solano County to be the 5th most racially diverse county in the United States, behind Aleutians West Census Area and Aleutians East Borough in Alaska, Queens County in New York, and Alameda County in California.[26]

2011

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Ethnic origins in Solano County

Places by population, race, and income

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2010

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The 2010 United States Census reported that Solano County had a population of 413,344. The racial makeup of Solano County was 210,751 (51.0%) White, 60,750 (14.7%) African American, 3,212 (0.8%) Native American, 60,473 (14.6%) Asian, 3,564 (0.9%) Pacific Islander, 43,236 (10.5%) from other races, and 31,358 (7.6%) from two or more races. Hispanic or Latino of any race were 99,356 persons (24.0%).[34] At 52,641 Filipinos in the county making up 12% of the population, Solano County has the largest percentage Filipino population of any county in the United States.[citation needed]

2000

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At the 2000 census there were 394,542 people, 130,403 households, and 97,411 families in the county. The population density was 476 inhabitants per square mile (184/km2). There were 134,513 housing units at an average density of 162 per square mile (63/km2). The racial makeup of the county was 56.4% White, 14.9% Black or African American, 0.8% Native American, 12.8% Asian, 0.8% Pacific Islander, 8.0% from other races, and 6.4% from two or more races. 17.64% of the population were Hispanic or Latino of any race. 8.5% were of German, 6.4% Irish and 6.0% English ancestry according to Census 2000. 75.7% spoke English, 12.1% Spanish and 6.6% Tagalog as their first language.[35] Of the 130,403 households 39.9% had children under the age of 18 living with them, 55.7% were married couples living together, 13.8% had a female householder with no husband present, and 25.3% were non-families. 19.6% of households were one person and 6.5% were one person aged 65 or older. The average household size was 2.90 and the average family size was 3.33.

The age distribution was 28.3% under the age of 18, 9.2% from 18 to 24, 31.3% from 25 to 44, 21.7% from 45 to 64, and 9.5% 65 or older. The median age was 34 years. For every 100 females there were 101.5 males. For every 100 females age 18 and over, there were 100.2 males.

The median household income was $54,099 and the median family income was $60,597. Males had a median income of $41,787 versus $31,916 for females. The per capita income for the county was $21,731. About 6.1% of families and 8.3% of the population were below the poverty line, including 10.3% of those under age 18 and 6.3% of those age 65 or over.

Crime

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The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense (2011).

Cities by population and crime rates

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Government and politics

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Government

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The Government of Solano County is defined and authorized under the California Constitution and law as a general law county. The County government provides countywide services such as elections and voter registration, law enforcement, jails, vital records, property records, tax collection, public health, and social services. In addition the County serves as the local government for all unincorporated areas.

The County government is composed of the elected five-member Board of Supervisors, several other elected offices including the Sheriff-Coroner, District Attorney, Assessor/Recorder, Auditor-Controller, and Treasurer/Tax Collector/County Clerk, and numerous county departments and entities under the supervision of the County Administrator. As of March 2023, the members of the Solano County Board of Supervisors were:

  • Erin Hannigan, District 1
  • Monica Brown, District 2, Vice Chair
  • Wanda Williams, District 3
  • John Vasquez, District 4, Chair
  • Mitch Mashburn, District 5

Politics

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Voter registration statistics

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Overview

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Solano County courthouse tower in parking lot

Solano County has been a Democratic stronghold in presidential and congressional elections, with Californians Richard Nixon (in 1972) and Ronald Reagan (in 1980 and 1984) being the only Republicans to win the county since 1928. However, the northern area of Solano County including Vacaville and Dixon have begun shifting right as evidenced by the 2022 midterms, voters in Congressional District 4 favored the Republican candidate 50.3% to 49.7%.[39]

United States presidential election results for Solano County, California[40][note 5]
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2020 69,306 33.51% 131,639 63.65% 5,886 2.85%
2016 51,920 30.88% 102,360 60.87% 13,870 8.25%
2012 52,092 34.08% 96,783 63.32% 3,965 2.59%
2008 56,035 34.68% 102,095 63.18% 3,458 2.14%
2004 62,301 41.86% 85,096 57.17% 1,440 0.97%
2000 51,604 39.17% 75,116 57.02% 5,015 3.81%
1996 40,742 34.74% 64,644 55.12% 11,893 10.14%
1992 38,883 29.43% 64,320 48.69% 28,908 21.88%
1988 50,314 47.43% 54,344 51.23% 1,430 1.35%
1984 51,678 54.51% 41,982 44.29% 1,138 1.20%
1980 40,919 50.72% 30,952 38.37% 8,805 10.91%
1976 26,136 42.40% 33,682 54.64% 1,826 2.96%
1972 31,314 54.02% 24,766 42.73% 1,885 3.25%
1968 17,683 34.71% 27,271 53.52% 5,998 11.77%
1964 15,263 30.38% 34,930 69.53% 47 0.09%
1960 18,751 40.88% 26,977 58.81% 141 0.31%
1956 17,865 41.68% 24,903 58.10% 95 0.22%
1952 19,369 42.37% 26,130 57.16% 216 0.47%
1948 12,345 33.71% 23,257 63.50% 1,022 2.79%
1944 10,361 29.77% 24,335 69.93% 105 0.30%
1940 6,081 28.51% 15,054 70.58% 193 0.90%
1936 3,603 20.89% 13,459 78.05% 182 1.06%
1932 4,382 30.30% 9,712 67.16% 367 2.54%
1928 7,061 52.32% 6,278 46.51% 158 1.17%
1924 4,782 48.00% 957 9.61% 4,223 42.39%
1920 7,102 64.77% 2,954 26.94% 909 8.29%
1916 3,536 36.35% 5,678 58.37% 514 5.28%
1912 40 0.50% 3,650 45.66% 4,303 53.83%
1908 3,115 54.72% 2,033 35.71% 545 9.57%
1904 3,176 61.37% 1,555 30.05% 444 8.58%
1900 3,114 55.36% 2,262 40.21% 249 4.43%
1896 2,702 53.19% 2,284 44.96% 94 1.85%
1892 2,403 49.21% 2,174 44.52% 306 6.27%
1888 2,231 49.67% 2,158 48.04% 103 2.29%
1884 2,382 53.61% 1,977 44.50% 84 1.89%
1880 1,963 49.80% 1,959 49.70% 20 0.51%

Solano County is split between California's 4th, 7th and 8th congressional districts, represented by Mike Thompson (DSt. Helena), Doris Matsui (DSacramento) and John Garamendi (DWalnut Grove) respectively.[41]

In the California State Assembly, Solano County is split between the 4th Assembly District, represented by Democrat Cecilia Aguiar-Curry, and the 11th Assembly District, represented by Democrat Lori Wilson. In the California State Senate, it is in the 3rd Senate District, represented by Democrat Bill Dodd.[42]

On November 4, 2008, Solano County voted 55.82% in favor of Proposition 8, which amended the California Constitution to ban same-sex marriages. It was the only Bay Area county to approve the initiative.[43] In the 2008 presidential election that day, Barack Obama carried the county by a 28.5% margin over John McCain, a larger margin than statewide (24%).[44]

According to the California Secretary of State, as of February 10, 2019, Solano County has 236,028 registered voters. Of those, 106,452 (45.1%) are registered Democrats, 50,006 (21.2%) are registered Republicans, and 66,558 (28.2%) have declined to state a political party.[45] Democrats hold voter-registration advantages in all incorporated cities and towns in Solano County. However, Republicans lead in registration in the unincorporated communities of the county (40%-35%), making Solano the only county in the Bay Area where Republicans out-number Democrats in unincorporated communities. The Democrats' largest registration advantage in Solano is in the city of Vallejo, wherein there are only 8,242 Republicans (14.6%) out of 56,313 total voters compared to 33,753 Democrats (59.9%) and 12,157 voters who have declined to state a political party (21.6%).

Communities

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Cities

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Census-designated places

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Other unincorporated communities

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Population ranking

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The population ranking of the following table is based on the 2020 census of Solano County.[46]

county seat

Rank Settlement Municipal type Population (2020 census)
1 Vallejo City 126,090
2 Fairfield City 119,881
3 Vacaville City 102,386
4 Suisun City City 29,518
5 Benicia City 27,131
6 Dixon City 18,988
7 Rio Vista City 10,005
8 Hartley CDP 2,430
9 Green Valley CDP 1,654
10 Allendale CDP 1,651
11 Elmira CDP 193

Miscellania

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  • In 1985 Humphrey the humpback whale strayed off his migration route and ended up in Shag Slough north of Rio Vista. Rescuers from the Marine Mammal Center and other volunteers dismantled a county bridge before being able to turn him around in the narrow slough.

See also

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Explanatory notes

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  1. ^ Other = Some other race + Two or more races
  2. ^ Native American = Native Hawaiian or other Pacific Islander + American Indian or Alaska Native
  3. ^ Only larceny-theft cases involving property over $400 in value are reported as property crimes.
  4. ^ a b Percentage of registered voters with respect to total population. Percentages of party members with respect to registered voters follow.
  5. ^ This total comprised 3,353 votes for Progressive Theodore Roosevelt (who was official Republican nominee in California), 781 votes for Socialist Eugene V. Debs and 169 votes for Prohibition Party nominee Eugene W. Chafin.

References

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  1. ^ "Chronology". California State Association of Counties. Archived from the original on January 29, 2016. Retrieved February 6, 2015.
  2. ^ "Solano County - Board Members".
  3. ^ "Solano County - County Administrator".
  4. ^ "Mount Vaca". Peakbagger.com. Retrieved April 8, 2015.
  5. ^ "Gross Domestic Product: All Industries in Solano County, CA". Federal Reserve Economic Data. Federal Reserve Bank of St. Louis.
  6. ^ "Solano County, California". United States Census Bureau. Retrieved January 30, 2022.
  7. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  8. ^ a b Landis, John D.; Reilly, Michael (2003). "How We Will Grow: Baseline Projections of California's Urban Footprint Through the Year 2011". In Guhathakurta, Subhrajit (ed.). Integrated Land Use and Environmental Models: A Survey of Current Applications and Research. Springer. p. 84. ISBN 9783540005766. Retrieved March 14, 2012.
  9. ^ "The Botched Reveal of California Forever". The Information. Retrieved September 24, 2023.
  10. ^ Dougherty, Conor; Griffith, Erin (August 25, 2023). "The Silicon Valley Elite Who Want to Build a City From Scratch". The New York Times. ISSN 0362-4331. Retrieved September 24, 2023.
  11. ^ Alston, John (April 18, 2008). "Solano County's unemployment rate soars to 6.4 percent". abc7news.com. Archived from the original on August 1, 2013. Retrieved March 14, 2012.
  12. ^ Walters, Dan (March 29, 1986). "East Bay is a Socioeconomic Dichotomy". Lodi News-Sentinel. p. 12. Retrieved March 14, 2012.
  13. ^ "Bay Area median home price falls below $500,000". San Francisco Business Times. July 17, 2008. Retrieved March 14, 2012.
  14. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  15. ^ Hogan, C. Michael; Papineau, Marc (September 1989). "Environmental Assessment of the Columbus Parkway Widening between Ascot Parkway and the Northgate Development, Vallejo". Earth Metrics Inc. Report 7853. California State Clearinghouse.
  16. ^ "Delta Green Ground Beetle (Elaphrus viridis) | U.S. Fish & Wildlife Service". www.fws.gov. Retrieved February 8, 2024.
  17. ^ "CONTRA COSTA GOLDFIELDS" (PDF). Solano County Water Agency. July 2012.
  18. ^ "LEGENERE" (PDF). Solano County Water Agency. July 2012.
  19. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved March 26, 2024.
  20. ^ "Census of Population and Housing from 1790-2000". US Census Bureau. Retrieved January 24, 2022.
  21. ^ "Historical Census Browser". University of Virginia Library. Retrieved May 31, 2014.
  22. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved May 31, 2014.
  23. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved May 31, 2014.
  24. ^ a b "P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Solano County, California". United States Census Bureau.
  25. ^ a b "P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Solano County, California". United States Census Bureau.
  26. ^ Narula, Svati Kirsten (April 29, 2014). "The 5 U.S. Counties Where Racial Diversity Is Highest—and Lowest". The Atlantic. Retrieved May 8, 2017.
  27. ^ a b c d e f g h i j k l m n o p q U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B02001. U.S. Census website. Retrieved October 26, 2013.
  28. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B03003. U.S. Census website. Retrieved October 26, 2013.
  29. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19301. U.S. Census website. Retrieved October 21, 2013.
  30. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19013. U.S. Census website. Retrieved October 21, 2013.
  31. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19113. U.S. Census website. Retrieved October 21, 2013.
  32. ^ a b U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates. U.S. Census website. Retrieved October 21, 2013.
  33. ^ U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B01003. U.S. Census website. Retrieved October 21, 2013.
  34. ^ "2010 Census P.L. 94-171 Summary File Data". United States Census Bureau.
  35. ^ "U.S. Census website". United States Census Bureau. Retrieved May 14, 2011.
  36. ^ a b c d e f g h i j Office of the Attorney General, Department of Justice, State of California. Table 11: Crimes – 2009 Archived December 2, 2013, at the Wayback Machine. Retrieved November 14, 2013.
  37. ^ a b c United States Department of Justice, Federal Bureau of Investigation. Crime in the United States, 2012, Table 8 (California). Retrieved November 14, 2013.
  38. ^ a b c d e f g h i j k l m n o p q California Secretary of State. February 10, 2013 - Report of Registration Archived July 27, 2013, at the Wayback Machine. Retrieved October 31, 2013.
  39. ^ "Solano County - NOVEMBER 8, 2022 - Election Results".
  40. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved September 5, 2018.
  41. ^ "California's 3rd Congressional District - Representatives & District Map". Civic Impulse, LLC. Retrieved March 1, 2013.
  42. ^ "Statewide Database". UC Regents. Archived from the original on February 1, 2015. Retrieved December 4, 2014.
  43. ^ "Supplement to the Statement of Vote Statewide Summary by County for State Ballot Measures" (PDF). California Secretary of State. p. 52. Retrieved July 1, 2019.
  44. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". www.uselectionatlas.org. Retrieved October 2, 2016.
  45. ^ CA Secretary of State – Report of Registration – February 10, 2019 Archived March 23, 2019, at the Wayback Machine
  46. ^ "Explore Census Data". United States Census Bureau. Retrieved November 28, 2021.
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