Yes, your retirement pay and Social Security benefits are considered income.
You should receive a Form 1099-SSA reporting the amount of Social Security income you received last year.
You should receive a Form 1099-R from your pension company reporting the amount you received last year.
Click this link for info on How to Enter Social Security Benefits (SSA-1099).
Click this link for info on How to Enter a 1099-R.
Depending on your income, you may or may not be required to file a tax return to California.
Click this link for more info on California Filing Requirements.
This link gives info on Federal Filing Requirements.