Contra Costa County, CA population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Contra Costa County increased by 201,901. In this period, the peak population was 1.17 million in the year 2020. The numbers suggest that the population has already reached its peak and is showing a trend of decline.
| Year | Population | Year on Year Change | Change in Percent |
|---|---|---|---|
| 2000 | 953,124 | - | - |
| 2001 | 972,322 | 19,198 | 2.01% |
| 2002 | 982,242 | 9,920 | 1.02% |
| 2003 | 990,852 | 8,610 | 0.88% |
| 2004 | 996,658 | 5,806 | 0.59% |
| 2005 | 1,004,079 | 7,421 | 0.74% |
| 2006 | 1,006,545 | 2,466 | 0.25% |
| 2007 | 1,015,661 | 9,116 | 0.91% |
| 2008 | 1,030,584 | 14,923 | 1.47% |
| 2009 | 1,045,804 | 15,220 | 1.48% |
| 2010 | 1,052,516 | 6,712 | 0.64% |
| 2011 | 1,065,361 | 12,845 | 1.22% |
| 2012 | 1,077,439 | 12,078 | 1.13% |
| 2013 | 1,093,253 | 15,814 | 1.47% |
| 2014 | 1,108,665 | 15,412 | 1.41% |
| 2015 | 1,124,148 | 15,483 | 1.40% |
| 2016 | 1,137,259 | 13,111 | 1.17% |
| 2017 | 1,145,623 | 8,364 | 0.74% |
| 2018 | 1,150,840 | 5,217 | 0.46% |
| 2019 | 1,152,883 | 2,043 | 0.18% |
| 2020 | 1,166,069 | 13,186 | 1.14% |
| 2021 | 1,163,941 | -2,128 | -0.18% |
| 2022 | 1,157,019 | -6,922 | -0.59% |
| 2023 | 1,155,025 | -1,994 | -0.17% |
TABLE OF CONTENTS
Contra Costa County, CA population from 2000 to 2023
From 2000 to 2010, Contra Costa County's population increased by 99,392 (10.43%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 9.63%.
From 2010 to 2020, Contra Costa County's population increased by 113,553 (10.79%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.18% .
After the COVID19 pandemic and, between the year 2020 and 2023, Contra Costa County's population decreased by 11,044 (0.95%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
Contra Costa County's population from 2000 to 2023.
The estimated population at the end of 2023 was 1.16 million.
Between the year 2000 and 2023, Contra Costa County's population peaked in year 2020 at 1.17 million.
Between the year 2000 and 2023, Contra Costa County's population was lowest in year 2000 at 953,124.
Contra Costa County, CA annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of Contra Costa County grew year by year for 20 years and declined for 3 years.
From 2000 to 2023, Contra Costa County had an average annual population growth rate of 0.92% per year. Overall the population grew 21.18% between 2000 and 2023.
FIGURE 2
Contra Costa County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.92% per year.
From 2000 to 2001 Contra Costa County population grew the most, with an increase of 19,198 people (a 2.01% year-on-year increase)..
From 2021 to 2022 Contra Costa County population experienced the most significant decrease, with a decline of 6,922 people (a 0.59% year-on-year decline).
Things to know
Is Contra Costa County, CA population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Contra Costa County's population decreased by 8,916 between 2021 and 2023. The decrease was 6,922 (increased) between 2021 and 2022; and decrease of 1,994 (0.17%) between 2022 and 2023.
How has the population of Contra Costa County, CA changed in the last 10 years?
Between 2013 and 2023, population of Contra Costa County increased by 61,772 (5.65%). The population was highest at 1.17 million in the year 2020 and lowest at 1.11 million in the year 2014. Overall the average growth rate witnessed for the last 10 years was 0.55%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)