Which Classes Fill Up Fastest at College of the Sequoias?

    In Fall 2026, 78% of COS’ 1,509 class sections filled up. The classes most likely to be full were COMM C1000, PSYC C1000 and ENGL C1001.

    At their longest, waitlists across COS’ sections added up to 6,797 spots.

    Online sections filled more often than in-person ones: 76% of in-person sections vs 89% of online sections.

    The 30 classes that fill up fastest at COS

    1. 1.COMM C1000 Introduction to Public Speaking Hybrid
      49 of 49 sections full · 466 on waitlists
    2. 2.PSYC C1000 Introduction to Psychology Hybrid
      24 of 24 sections full · 232 on waitlists
    3. 3.ENGL C1001 Critical Thinking and Writing In Person
      27 of 27 sections full · 207 on waitlists
    4. 4.CHEM 020 Introduction to General Chemistry Hybrid
      19 of 19 sections full · 190 on waitlists
    5. 5.STAT C1000 Introduction to Statistics Lecture/Discussion w/ Support
      43 of 43 sections full · 165 on waitlists
    6. 6.POLS C1000 American Government and Politics Hybrid
      23 of 23 sections full · 148 on waitlists
    7. 7.BIOL 020 Frontiers in Biology Hybrid
      21 of 21 sections full · 147 on waitlists
    8. 8.BIOL 030 Human Anatomy Hybrid
      13 of 13 sections full · 130 on waitlists
    9. 9.ETHN 010 Introduction to Ethnic Studies and Social Justice Studies In Person
      13 of 13 sections full · 126 on waitlists
    10. 10.SOC 001 Introduction to Sociology Hybrid
      12 of 12 sections full · 111 on waitlists
    11. 11.BIOL 040 General Microbiology In Person
      10 of 10 sections full · 100 on waitlists
    12. 12.ETHN 003 Chicana and Chicano Studies In Person
      10 of 10 sections full · 100 on waitlists
    13. 13.BIOL 031 Human Physiology Hybrid
      10 of 10 sections full · 90 on waitlists
    14. 14.NUTR 018 Nutrition Hybrid
      12 of 12 sections full · 75 on waitlists
    15. 15.GEOG 001 Physical Geography In Person
      10 of 10 sections full · 71 on waitlists
    16. 16.ARTH 001 Art Appreciation In Person
      10 of 10 sections full · 67 on waitlists
    17. 17.HIST C1001 United States History to 1877 Hybrid
      10 of 10 sections full · 67 on waitlists
    18. 18.LIBR 101 College Research Strategies Hybrid
      7 of 7 sections full · 64 on waitlists
    19. 19.COUN 010 Career and Life Planning Hybrid
      9 of 9 sections full · 61 on waitlists
    20. 20.ACCT 001 Financial Accounting In Person
      7 of 7 sections full · 61 on waitlists
    21. 21.BUS 082 Introduction to Business In Person
      6 of 6 sections full · 60 on waitlists
    22. 22.AJ 011 Introduction to Criminal Justice Hybrid
      7 of 7 sections full · 51 on waitlists
    23. 23.CINA 031 Film Appreciation-American In Person
      6 of 6 sections full · 51 on waitlists
    24. 24.CHLD 042 Child, Family, and Community Hybrid
      5 of 5 sections full · 50 on waitlists
    25. 25.ECON C2001 Principles of Microeconomics In Person
      5 of 5 sections full · 50 on waitlists
    26. 26.CHEM 001 General Chemistry 1 In Person
      5 of 5 sections full · 47 on waitlists
    27. 27.ETHN 004 Asian American Studies Hybrid
      5 of 5 sections full · 47 on waitlists
    28. 28.NURS 260 Nursing Assistant In Person
      3 of 3 sections full · 45 on waitlists
    29. 29.ETHN 001 Black American Studies Hybrid
      4 of 4 sections full · 40 on waitlists
    30. 30.COMP 005 Computer Concepts Hybrid
      7 of 7 sections full · 39 on waitlists

    Only classes with two or more sections are ranked. The waitlist number adds up each section’s waitlist at its longest, so a student waiting on two sections counts twice.

    How we measured this

    We checked every section in COS’ Fall 2026 class schedule repeatedly from Monday, June 29, 2026 to Wednesday, October 14, 2026. A section counts as full if any check found its enrollment at the seat limit or anyone on its waitlist. Cancelled sections and sections without a seat limit are left out. Classes that filled before our first check still count, because they were still full when we looked.

    Questions students ask

    What classes fill up fast at COS?

    In Fall 2026, the classes most likely to be full at COS were COMM C1000 (Introduction to Public Speaking Hybrid), PSYC C1000 (Introduction to Psychology Hybrid), ENGL C1001 (Critical Thinking and Writing In Person), CHEM 020 (Introduction to General Chemistry Hybrid) and STAT C1000 (Introduction to Statistics Lecture/Discussion w/ Support). Overall, 78% of COS’ class sections filled up.

    How do I get into a full class at COS?

    Get on the waitlist as soon as you can, check your email through the first week for a permission number or add code, and go to the first class meeting. Instructors often add waitlisted students who show up, as other students drop.

    When should I register at COS to get the classes I need?

    At your registration appointment, the first minute it opens. Spring 2027 registration at COS opens Monday, October 26, 2026 for continuing students. Have a backup section picked for every class on this list.

    Not sure which classes to register for? On our platform, put in COS and the university you want to transfer to, and you get the classes you need, semester by semester. Build your class plan.