Community college salaries vary by district...so your best bet is to contact the Human Resources Dept at some CCs you are interested in teaching. The salary schedules are a matrix of education (columns based on degree and units past a degree; eg BA + X units, MA + X units, Ph D) and years of teaching experience (rows) with some districts setting a maximum of 6 years teaching credit when first placing you on the schedule. Then, step increases occur....which means you stay in a salary bracket for X years before getting a raise to the next "step".
For the demand:
start with US Dept of Labor Occupational Outlook http://www.bls.gov/oco/home.htm
for CA labor outlook, go to http://www.labormarketinfo.edd.ca.gov/
Workload: full-time teaching load is 5 classes @3 semester credits); part-time is limited to about 2 classes, @3 semester units. Both types of instructors have the freedom to choose their textbooks for the class, though some schools are more formal and require an oversight committee to approve your selection.
Full-timers have an option to teach additional classes (max 2, 3 unit classes...but pay is at an hourly rate...not the same as your full time load salaried position.
Full timers are expected to maintain conference/office hours X hrs per week and participate in campus committees X hrs per week depends on the school.
Tenure is about 4 years to achieve with period evaluations by peer, dean of your division, and VP of Instruction.
Union dues, depending on the organization can vary from a flat fee to 1?f your annual salary.
Critical thing for a newbie MA...teaching experience at the CC level (meaning adults) with some districts placing an emphasis on teaching in a multi-cultural environment. Read the job announcements carefully about the # years teaching experience required. So teaching part-time is one way to do this....so contact the Human resources and the relevant departments and file a resume with them or ask if they maintain a part time instructor pool to get you listed there.
Some departments require a teaching demonstration.
Sign up with the CA CC registry and file your resume here for possible job leads https://www.cccregistry.org/jobs/index.aspx
Contact a local CA CC for possible job fairs conducted by the CA CC or check the CA CC website...I think this happens about 2 times a year.
OK, hope this helps. Best wishes.