The zip code 94566 in Pleasanton, California, has undergone a demographic transition from a White Majority community to one of Moderate Diversity between 2013 and 2022. In 2013, the White population constituted 61% of the total, but by 2022, this percentage decreased to 46%. The Asian population increased from 22% in 2013 to 37% in 2022, driving the area's increasing diversity. The Hispanic population remained stable at approximately 12% throughout this period.

The demographic shifts occurred alongside economic growth. The median income rose from $133,338 in 2013 to $154,948 in 2022, representing a 16% increase over nine years. This suggests that the changing racial composition coincided with economic prosperity. The population peaked in 2019 at 43,816 and subsequently decreased to 41,197 in 2022, potentially indicating a trend towards smaller, more affluent households.

The observed demographic changes align with broader trends seen in suburban areas near major tech hubs. The increasing Asian population likely relates to immigration patterns in the tech industry, which has experienced a significant influx of skilled workers from Asian countries. The high median income and its steady increase place this zip code well above the national median household income, which was approximately $70,784 in 2021.