The provided pie charts illustrate the distribution of water usage across three distinct sectors—residential, industry, and agriculture—comparing San Diego County, California, and the world.
Overall, it is evident that water consumption priorities vary significantly by region. Residential use is the primary consumer in San Diego and California, whereas agriculture is the most significant user globally.
In San Diego County, residential water usage accounts for a substantial 60% of the total, which is more than double the 23% attributed to industry and significantly higher than the 17% used for agriculture. A similar, though less pronounced, trend is observed in California, where residential consumption stands at 39%, followed by industry at 33% and agriculture at 28%.
In stark contrast, the global pattern is reversed. Agriculture is the dominant sector worldwide, consuming 69% of all water. Industry accounts for 23% of global usage, matching the industrial proportion seen in San Diego. Meanwhile, residential water usage is the smallest category globally, representing only 8% of the total, which is a fraction of the proportions recorded in both San Diego and California.