Data include highly detailed information about the inmates in jails in the state at the jail-month level and the county-month and county-quarter level of analysis.The data was scraped from the California Board of State and Community Corrections' website here
https://app.bscc.ca.gov/joq//jps/queryselection.asp There are 3 data sets available: facility/jail-level data monthly, county-level data monthly, and county-level data quarterly. Each of these data sets offers different variables. All the data sets have the variables indicating the years, month (or quarter), and jurisdiction (in most cases the county sheriff).