Here is the American Judicature Society list on the breakdown of how states select their “Intermediate Appellate Courts.”
Legislative Appointment (2): South Carolina and Virginia.
Gubernatorial Appointment (3): California, Kansas, and New Jersey.
Non-Partisan Election (11): Arkansas, Georgia, Idaho, Kentucky, Michigan, Minnesota, Mississippi, North Carolina, Oregon, Washington, and Wisconsin.
Partisan Election (7): Alabama, Illinois, Louisiana, New Mexico, Ohio, Pennsylvania, and Texas.
Merit Selection (16): Alaska, Arizona, Colorado, Connecticut, Delaware, Florida, Hawaii, Indiana, Iowa, Maryland, Massachusetts, Missouri, Nebraska, New York, Oklahoma, Tennessee, and Utah.