Last updated on April 9, 2023
There are many ways to quantify the richest area in California 2023. One of the best ways is through the latest official GDP. Below is a list of the richest area in California based on their most recent GDP (2021 data).
Richest Area in California 2023 by County
1. Los Angeles County
Los Angeles is the richest area in California 2023. From the most recent 2021 Data, The GDP of Los Angeles was US$711.97 billion. This was a 7.86% increase from 2020’s GDP of US$660.01 billion.
Information was the leading industry contributing to this output, responsible for US$125.57 billion in GDP. This was followed by Finance, insurance, real estate, rental, and leasing, contributing US$120.92 billion.
2. Santa Clara County
At the second position of the richest area in California is Santa Clara, with a GDP of US$382.33 billion. This was a 13.3% increment from the 2020 GDP of US$337,43 billion.
The information sector was the largest contributor to this GDP, accounting for US$118.13 billion. The Manufacturing sector followed it at US$95.23 billion, closely followed by the Durable goods manufacturing sector, which contributed to US$93.18 billion.
3. Orange County
In the third position of the richest area is Orange County. In 2021, the GDP of this county was US$238.23 billion. It increased by 6.98% from 2020’s GDP of US$222.68 billion.
The Finance, insurance, real estate, rental, and leasing sector was the leading contributor of this GDP. It accounted for US$ 53.34 billion. The professional and business services sector was closely following, contributing US$44.68 billion to the GDP output.
4. San Diego County
San Diego came as the fourth richest area in California. The county had a GDP of US$224.95 billion in 2021. The county’s 2021 GDP output was a 7.8% increment from 2020 to 2021.
The professional and business services sector was the leading contributor to GDP, accounting for US$43.4 billion. The Finance, insurance, real estate, rental, and leasing sector followed it, which contributed to US$38.06 billion.
5. San Francisco County
In fifth place is San Francisco, “The City by the Bay.” The county had a GDP of US$200.48 billion in 2021. The GDP of this county increased by 14% from the 2020 record of US$175.87 billion.
The leading sector contributing to this GDP was Professional and business services, responsible for US$58.3 billion. The information sector was the second largest contributor, responsible for US$43.1 billion of GDP.
6. San Mateo County
The sixth position of the richest area in California is San Mateo, its 2021 GDP being US$142.24 billion. The 2021 GDP of San Mateo county was a 12.9% increase from 2020’s GDP of US$125.96 billion.
Industry-wise, Information was the leading sector contributing to US$45.49 billion. It was followed by the Manufacturing sector with US$27.16 billion, closely followed by the Professional and business services sector responsible for US$26.43 billion.
7. Alameda County
Alameda is the seventh richest county in California. With a 2021 GDP of US$130.47 billion, it was a 6.47% increment from 2020’s GDP of $122.53 billion.
Like San Francisco, the leading industry contributing to this GDP was Professional and business services. The sector contributed to US$24.99 billion. The second largest sector contributor was Manufacturing, responsible for US$21.2 billion.
8. San Bernardino County
San Bernardino is a county known for numerous watersports and hiking activities. In 2021, the county had a GDP of US$87.55 billion, a 5.53% increase from 2020’s GDP of US$82.96 billion.
The leading industry in this county was Finance, insurance, real estate, rental, and leasing. The sector was responsible for US$13.57 billion. The real estate, rental, and leasing sector was the second largest contributor, with a GDP of US$11.5 billion.
9. Sacramento County
At the ninth position of the richest area in California is Sacramento. The county had a GDP of US$86.45 billion in 2021. It was a 5.6% increase from 2020’s GDP of US$81.86 billion.
Finance, insurance, real estate, rental, and leasing was the leading industry responsible for US$14.36 billion. Professional and business services was the second largest contributing sector. It was responsible for US$10.02 billion.
10. Riverside County
Riverside county was the tenth richest area in California. Its 2021 GDP was US$83.85 billion, a 6.8% increase from 2020.
Like Sacramento, Finance, insurance, real estate, rental, and leasing sector contributed the most GDP of US$16.8 billion. The real estate, rental, and leasing sector came in second, contributing to US$15 billion.
11. Contra Costa County
Contra Costa County is the eleventh richest area in California, with a GDP of US$73.53 billion in 2021. It was an increase of 4.14% from 2020’s GDP of US$70.6 billion.
The leading sector contributing to this GDP was Finance, insurance, real estate, rental, and leasing, responsible for US$15.5 billion. It was followed by the Real estate, rental, and leasing, contributing US$11.55 billion of the GDP output.
12. Ventura County
Ventura County is the twelfth richest area in California. With a GDP of US$48.64 billion in 2021, it was closely followed by Kern county. The county’s 2021 GDP was a 3% increase from 2020’s US$47.21 billion GDP.
The sector that contributed the most to this GDP output was Finance, insurance, real estate, rental, and leasing, responsible for US$8.77 billion. The second largest contributor sector was Manufacturing, responsible for US$8.44 billion.
13. Kern County
The thirteenth position of the richest area in California is Kern, with a GDP of US$47.52 billion in 2021. The county’s 2021 GDP decreased by 1.06% from US$48.03 billion in 2020. It is the first county on our list whose GDP decreased from 2020 to 2021.
Mining contributed the most to the 2021 GDP of Kern county. It was responsible for US$8.74 billion. Agriculture, forestry, fishing, and hunting was the second largest contributor sectors. It contributed 4.3 billion to the total GDP.
14. Fresno County
Fresno is known for its agricultural activities. It is among the top agricultural productive counties in California. The GDP of the county was US$41.82 billion in 2021. It was a slight increment from 2020 by 1.19%.
Despite being a county productive in agriculture, the Finance, insurance, real estate, rental, and leasing sector contributed to most of its GDP. It was responsible for US$6 billion of the total GDP of the county. It was followed by Educational services, health care, and social assistance, responsible for US$4.97 billion.
15. San Joaquin County
San Joaquin took the fifteenth position of the richest area in California, with a GDP of US$30.18 billion in 2021. Compared to 2020’s GDP of US$28.43 billion, it was a 6.13% increment.
Finance, insurance, real estate, rental, and leasing was the largest contributing sector, accounting for US$4.78 billion. The real estate, rental, and leasing sector was second, accounting for US$4.09 billion.
16. Marin County
Marin county came in as the sixteenth richest, with its 2020 GDP being US$28.59 billion. Compared to the 2020 GDP of US$27.6 billion, this was a 3.56% increment.
The manufacturing sector was the largest contributor, with US$8.37 billion. It was closely followed by the Nondurable goods manufacturing sector, contributing US$8.06 billion to Marin’s 2021 GDP.
17. Santa Barbara County
Santa Barbara is seventeenth on our list, with its 2021 GDP being US$28.53 billion. 2021’s GDP of the county was a 5.34% increment from the 2020 GDP of US$27.09 billion.
The leading industry contributing to the 2021 GDP of Santa Barbara county was Finance, insurance, real estate, rental, and leasing. It contributed to an estimated GDP of US$5.12 billion. It was followed by Professional and business services, responsible for US$4.53 billion of the total GDP.
18. Sonoma County
If you think of sustainable farming in California, Sonoma county should come to mind. The county had a 2021 GDP of US$28.34 billion, thus the eighteenth on our list. Compared to 2020’s GDP of US$26.62 billion, this was a 6.43% increment.
Like many counties on our list, Finance, insurance, real estate, rental, and leasing sector contributed the most to the GDP. It was responsible for US$5.77 billion of the total GDP. Manufacturing followed, accounting for US$5 billion.
19. Solano County
Salano is home to rolling hillsides. Its 2021 GDP was US$26.8 billion, a 2.1% increment from the 2020 GDP of US$26.24 billion.
Manufacturing contributed the most to the 2021 GDP of the county, with US$10.35 billion. It was closely followed by Nondurable goods manufacturing, accounting for US$9.73 billion in total GDP.
20. Monterey County
Last on our list of the richest area in California is Monterey, with a GDP of US$26.11 billion in 2021. It was a 1.8% increment compared to the 2020 GDP of US$25.65 billion.
Industry-wise, Agriculture, forestry, fishing, and hunting was the largest contributor to this GDP. It accounted for US$5.76 billion. It is the only county on our list whose Agriculture, forestry, fishing, and hunting sector lead all others. The finance, insurance, real estate, rental, and leasing sector followed, contributing to US$3.79 billion of the total GDP.
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