The population of the border region of California, composed of San Diego and Imperial counties, has steadily grown from 2010 to 2017. During this period, San Diego County’s population increased by 8%, and Imperial County’s population increased by 9%, both of which are higher than the statewide increase of 7%. In 2017, the California DOF projected that there were 3,528,080 individuals living in the border region, most of whom were living in San Diego County (n=3,337,456) and a smaller number of whom were living in Imperial County (n=190,624) (DOF, 2018).
The population in California, including the border region, is racially and ethnically diverse. In data from 2016- 2017, Whites made up the majority (45%) of the population in San Diego County, whereas Latinos constituted a large minority group of 36% (CHIS, 2016-2017). In Imperial County, most of the population was Latino (85%), whereas Whites accounted for 12% (CHIS, 2016-2017). As shown in Figure 1.1, in the State of California, Whites and Latinos made up approximately the same proportion, at 38% and 39% of the total population, respectively (Fig. 1.1) (CHIS, 2016-2017).