According to the 2020 census, Sacramento County accounted for 52.94% of the population of the Third District. San Joaquin County was 26.02%. Yolo was 7.23%, Butte County was 7.07%, Shasta County had 6.08% and Plumas County was 0.66% of the District.
During the decade, Sacramento County produced 11 cases for the Supreme Court’s civil docket. San Joaquin County had three cases and the remaining counties – Yolo, Shasta, Butte and Plumas – had one case apiece.
Next up, the Fourth District.