# CA-18 CA-18 — Congressional district in the United States. Coverage: 5 contests (2018–2026). Congressional district ## 2020 census 763,403 Total population, April 1, 2020 2020 census | Measure | People | Share | | --- | --- | --- | | Aged 18 and over | 570,234 | 74.70% | | Hispanic or Latino | 498,692 | 65.32% | | White alone, not Hispanic | 140,435 | 18.40% | | Black or African American alone, not Hispanic | 14,230 | 1.86% | | American Indian and Alaska Native alone, not Hispanic | 2,155 | 0.28% | | Asian alone, not Hispanic | 83,373 | 10.92% | | Native Hawaiian and Pacific Islander alone, not Hispanic | 1,872 | 0.25% | | Some other race alone, not Hispanic | 3,586 | 0.47% | | Two or more races, not Hispanic | 19,060 | 2.50% | US Census Bureau, 2020 Census redistricting retabulation for the 119th Congress and 2024 state legislative districts. Small areas carry privacy noise. ## Contests - [U.S. House 2026](https://civism.io/en-US/usa/contests/off-us-us-house-geo-us-cd-0618-5b11cfb0a7a9) - [U.S. House 2024](https://civism.io/en-US/usa/contests/off-us-us-house-geo-us-cd-0618-fe4f50d192fc) - [U.S. House 2022](https://civism.io/en-US/usa/contests/off-us-us-house-geo-us-cd-0618-9293cf17d5df) - [U.S. House 2020](https://civism.io/en-US/usa/contests/off-us-us-house-geo-us-cd-0618-d8fadc33ecc2) - [U.S. House 2018](https://civism.io/en-US/usa/contests/off-us-us-house-geo-us-cd-0618-66fc4f95c34b)