Contra Costa County employees, retirees and their dependents face health plan premium increases as high as 73% under a proposal before the Board of Supervisors.
The board is scheduled to vote Tuesday, Sept. 15, on revised rates for the Contra Costa Health Plan (CCHP), one of several insurance options in the county's benefits program. The increases do not apply to all CCHP members, according to Claycord.
Plan A premiums would rise 73.03%. Plan B would climb 39.51%.
For employee-only coverage, the monthly Plan A premium would go from $1,357.37 in 2026 to $2,348.67 in 2027. Plan B would rise from $1,504.66 to $2,099.16. By contrast, several Kaiser Permanente plans offered through the county are set to increase just 3.17%.
The county projects total CCHP premium costs for active employees at roughly $68.6 million in 2027, up from an expected $33.5 million in 2026. Those costs are split among the county, special districts and employee contributions, though the breakdown of who absorbs how much of the increase has not been made public.
The rate increases would affect CCHP enrollees countywide.
Rates already revised down once
The numbers heading to Tuesday's vote are lower than what supervisors first saw. At the board's Tuesday, Sept. 8, meeting, the proposed Plan A increase was 86.83% and Plan B was 50.64%. Supervisors delayed action that day after receiving updated figures.
The revised rates return to the board ahead of open enrollment for the 2027 plan year. The county has not publicly explained what is driving the increases.
