$45000 - $70000 a year , depending on the size of the firm
Yes, you can get legal aid for a divorce in California if you qualify (that is, if your income is low enough to meet the legal aid agency's guidelines) AND if your divorce is in a county served by a legal aid agency that takes divorce cases. Many do not, but some do. For example, if you're in Los Angeles County, try the Harriet Buhai Center for Family Law (first source below); if you're in Santa Clara County, try the Pro Bono Project (second source below).
The third source below is a list of all legal aid and lawyer referral services in California; this is where I found the two examples. Near the top of the page are statewide resources; click the Free Legal Help link for LawHelp California's searchable list by county and case type. Or scroll down the page and look for your county, then look for links to legal aid organizations in that county; the link will take you to the organization's website, where you can see what kinds of cases they handle and get their contact information.