The two largest community colleges in Texas (Lone Star College and Houston Community College) require 18 hours in residence for an associate's degree. In residence doesn't mean physical attendance. It means that you took the course from the school, paid tuition, and earned the credits. You could take 18 hours of online courses and transfer or test out of the rest. Other states could require more or fewer hours in residence.
63 CLEP Sociology
75 CLEP U.S. History II
63 CLEP College Algebra
70 CLEP Analyzing and Interpreting Literature
68 DSST Technical Writing
72 CLEP U.S. History I
77 CLEP College Mathematics
470 DSST Statistics
53 CLEP College Composition
73 CLEP Biology
54 CLEP Chemistry
77 CLEP Information Systems and Computer Applications
75 CLEP U.S. History II
63 CLEP College Algebra
70 CLEP Analyzing and Interpreting Literature
68 DSST Technical Writing
72 CLEP U.S. History I
77 CLEP College Mathematics
470 DSST Statistics
53 CLEP College Composition
73 CLEP Biology
54 CLEP Chemistry
77 CLEP Information Systems and Computer Applications