5_Exhibit B_Resolution_Attachment 2

9 Figure 1: Racial Dot Map of Pleasanton (2020) Universe: Population. Source: U.S. Census Bureau, 2020 Census State Redistricting Data (Public Law 94-171) Summary File, 2020 Census of Population and Housing, Table P002. Note: The plot shows the racial distribution at the census block level for City of Pleasanton and vicinity. Dots in each census block are randomly placed and should not be construed as actual placement of people. There are many ways to quantitatively measure segregation. Each measure captures a different aspect of the ways in which groups are divided within a community. One way to measure segregation is by using an isolation index: • The isolation index compares each neighborhood’s composition to the jurisdiction’s demographics as a whole. • This index ranges from 0 to 1. Higher values indicate that a particular group is more isolated from other groups. • Isolation indices indicate the potential for contact between different groups. The index can be interpreted as the experience of the average member of that group. For example, if the isolation index is .65 for Latinx residents in a city, then the average Latinx resident in that city lives in a neighborhood that is 65% Latinx. Within City of Pleasanton the most isolated racial group is white residents. Pleasanton’s isolation index of 0.457 for white residents means that the average white resident lives in a neighborhood that is 45.7% white. Other racial groups are less isolated, meaning they may be more likely to encounter other racial groups in their neighborhoods. The isolation index values for all racial groups in Pleasanton for the years 2000, 2010, and 2020 can be found in Table 1 below. Among all racial groups in this jurisdiction, the white population’s isolation index has changed the most over time, becoming less segregated from other racial groups between 2000 and 2020.