Alcohol Use in Past Month, by Grade Level

Year(s): 2017-2019

Contra Costa CountyPercent
Grade Level0 Days1 Day2 Days3-9 Days10-19 Days20-30 Days
Grade 797.0%1.8%0.5%0.4%0.2%0.1%
Grade 991.5%4.2%2.0%1.4%0.3%0.5%
Grade 1180.7%8.4%4.5%4.8%0.9%0.8%
Non-Traditional70.1%10.4%9.1%6.5%1.6%2.2%