TransfermaticRancho Santiago registration dates

    Which Classes Fill Up Fastest at Rancho Santiago College?

    In Fall 2026, 54% of Rancho Santiago’s 2,104 class sections filled up. The classes most likely to be full were BIOL 239, BIOL 229 and BIOL 249.

    At their longest, waitlists across Rancho Santiago’s sections added up to 5,726 spots.

    Online sections filled more often than in-person ones: 45% of in-person sections vs 63% of online sections.

    The 30 classes that fill up fastest at Rancho Santiago

    1. 1.BIOL 239 General Human Anatomy
      18 of 18 sections full · 191 on waitlists
    2. 2.BIOL 229 General Microbiology
      6 of 6 sections full · 121 on waitlists
    3. 3.BIOL 249 Human Physiology
      11 of 11 sections full · 93 on waitlists
    4. 4.ENGL 066 Route to Writing Success
      13 of 13 sections full · 83 on waitlists
    5. 5.ENGL C1001 Critical Thinking and Writing
      11 of 11 sections full · 70 on waitlists
    6. 6.FTC 103 Princ. of Fire Emergncy Servi
      8 of 8 sections full · 63 on waitlists
    7. 7.MA 051A Beginning Medical Terminology
      6 of 6 sections full · 60 on waitlists
    8. 8.EMT 104 Emergency Medical Technician
      3 of 3 sections full · 60 on waitlists
    9. 9.FTC 121L Physical Fitness for Public Sa
      5 of 5 sections full · 56 on waitlists
    10. 10.WELD 101 Introduction to Welding
      4 of 4 sections full · 55 on waitlists
    11. 11.FTC 121 Physical Fitness for Public Sa
      5 of 5 sections full · 54 on waitlists
    12. 12.FTC 102 Fire Behavior and Combustion
      8 of 8 sections full · 53 on waitlists
    13. 13.AUTO 102 Introduction to Automotive
      8 of 8 sections full · 49 on waitlists
    14. 14.ECON C2001 Principles of Microeconomics
      8 of 8 sections full · 40 on waitlists
    15. 15.PSYC 160 Introduction to Lifespan Psych
      4 of 4 sections full · 40 on waitlists
    16. 16.FTC 105 Bldg Construction for Fire
      5 of 5 sections full · 35 on waitlists
    17. 17.PSYC 219 Introduction to Research Metho
      5 of 5 sections full · 35 on waitlists
    18. 18.ENGR 100A Introduction to Engineering
      4 of 4 sections full · 34 on waitlists
    19. 19.PARA 146 Tort Law and Alternative
      2 of 2 sections full · 30 on waitlists
    20. 20.BUS 130 Personal Finance
      2 of 2 sections full · 27 on waitlists
    21. 21.EMT 105 Clinical EMT Skills Lab
      3 of 3 sections full · 25 on waitlists
    22. 22.FAC 008 Biddle Physical Ability Test
      8 of 8 sections full · 24 on waitlists
    23. 23.KNAC 123 Personal Fitness Training
      4 of 4 sections full · 24 on waitlists
    24. 24.CDEV 205 Intro to Children With Disabil
      3 of 3 sections full · 24 on waitlists
    25. 25.CDEV 112 Health, Safety, and Nutrition
      2 of 2 sections full · 24 on waitlists
    26. 26.PARA 101 Law Office Management
      2 of 2 sections full · 24 on waitlists
    27. 27.WELD 125 Intermediate Electric Arc Weld
      2 of 2 sections full · 23 on waitlists
    28. 28.PARA 121 Legal Ethical Reasoning
      3 of 3 sections full · 22 on waitlists
    29. 29.KNAF 140A Beginning Walking/Jogging for
      3 of 3 sections full · 21 on waitlists
    30. 30.MA 053 Medical Assistant - Admin Fron
      3 of 3 sections full · 21 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 Rancho Santiago’s Fall 2026 class schedule repeatedly from Tuesday, June 30, 2026 to Friday, October 9, 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 Rancho Santiago?

    In Fall 2026, the classes most likely to be full at Rancho Santiago were BIOL 239 (General Human Anatomy), BIOL 229 (General Microbiology), BIOL 249 (Human Physiology), ENGL 066 (Route to Writing Success) and ENGL C1001 (Critical Thinking and Writing). Overall, 54% of Rancho Santiago’s class sections filled up.

    How do I get into a full class at Rancho Santiago?

    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 Rancho Santiago to get the classes I need?

    At your registration appointment, the first minute it opens. Spring 2027 registration at Rancho Santiago opens Wednesday, October 28, 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 Rancho Santiago and the university you want to transfer to, and you get the classes you need, semester by semester. Build your class plan.