Here is a detailed 90210 episode guide that can help you browse all 90210 episodes in a snap! Each episode's rating and release date is listed on the right of the title. You may also use the quick season jumper to focus on a certain 90210 season.
| 90210 Season 1 Episodes | yyyy-mm-dd | Rating | |
| s1e1 | We're Not In Kansas Anymore | 2008-09-02 | 7.00/10 |
| s1e2 | The Jet Set | 2008-09-02 | 5.50/10 |
| s1e3 | Lucky Strike | 2008-09-09 | 10.00/10 |
| s1e4 | The Bubble | 2008-09-16 | 1.00/10 |
| s1e5 | Wide Awake And Dreaming | 2008-09-23 | 8.00/10 |
| s1e6 | Model Behavior | 2008-09-30 | 0.00/10 |
| s1e7 | Hollywood Forever | 2008-10-07 | 0.00/10 |
| s1e8 | There's No Place Like Homecoming | 2008-10-28 | 10.00/10 |
| s1e9 | Secrets And Lies | 2008-11-04 | 0.00/10 |
| s1e10 | Games People Play | 2008-11-11 | 0.00/10 |
| s1e11 | That Which We Destroy | 2008-11-18 | 0.00/10 |
| s1e12 | Hello, Goodbye, Amen | 2009-01-06 | 0.00/10 |
| s1e13 | Love Me Or Leave Me | 2009-01-13 | 1.00/10 |
| s1e14 | By Accident | 2009-01-20 | 0.00/10 |
| s1e15 | Help Me, Rhonda | 2009-02-03 | 10.00/10 |
| s1e16 | Of Heartbreaks And Hotels | 2009-02-10 | 10.00/10 |
| s1e17 | Life's A Drag | 2009-03-31 | 0.00/10 |
| s1e18 | Off The Rails | 2009-04-07 | 8.00/10 |
| s1e19 | Okaeri, Donna! | 2009-04-14 | 0.00/10 |
| s1e20 | Between A Sign And A Hard Place | 2009-04-21 | 0.00/10 |
| s1e21 | The Dionysian Debacle | 2009-04-28 | 0.00/10 |
| s1e22 | The Party's Over | 2009-05-05 | 0.00/10 |
| s1e23 | Zero Tolerance | 2009-05-12 | 8.00/10 |
| s1e24 | One Party Can Ruin Your Whole Summer | 2009-05-19 | 0.00/10 |
| 90210 Season 2 Episodes | yyyy-mm-dd | Rating | |
| s2e1 | To New Beginnings! | 2009-09-08 | 5.50/10 |
| s2e2 | To Sext Or Not To Sext | 2009-09-15 | 0.00/10 |
| s2e3 | Sit Down, You're Rocking The Boat | 2009-09-22 | 0.00/10 |
| s2e4 | The Porn King | 2009-09-29 | 8.00/10 |
| s2e5 | Environmental Hazards | 2009-10-06 | 10.00/10 |
| s2e6 | Wild Alaskan Salmon | 2009-10-13 | 10.00/10 |
| s2e7 | Unmasked | 2009-10-20 | 10.00/10 |
| s2e8 | Women's Intuition | 2009-11-03 | 8.00/10 |
| s2e9 | A Trip To The Moon | 2009-11-10 | 8.00/10 |
| s2e10 | To Thine Own Self Be True | 2009-11-17 | 8.00/10 |
| s2e11 | And Away They Go! | 2009-12-01 | 10.00/10 |
| s2e12 | Winter Wonderland | 2009-12-08 | 10.00/10 |
| s2e13 | Rats and Heroes | 2010-03-09 | 0.00/10 |
| s2e14 | Girl Fight | 2010-03-16 | 0.00/10 |
| s2e15 | What's Past is Prologue | 2010-03-23 | 0.00/10 |
| s2e16 | Clark Raving Mad | 2010-03-30 | 0.00/10 |
| s2e17 | Sweaty Palms And Weak Knees | 2010-04-06 | 0.00/10 |
| s2e18 | Another Another Chance | 2010-04-13 | 1.00/10 |
| s2e19 | Multiple Choices | 2010-04-27 | 0.00/10 |
| s2e20 | Meet The Parent | 2010-05-04 | 0.00/10 |
| s2e21 | Javianna | 2010-05-11 | 0.00/10 |
| s2e22 | Confessions | 2010-05-18 | 9.60/10 |
| 90210 Season 3 Episodes | yyyy-mm-dd | Rating | |
| s3e1 | Senior Year, Baby | 2010-09-13 | 6.00/10 |
| s3e2 | Age Of Inheritance | 2010-09-20 | 0.00/10 |
| s3e3 | 2021 Vision | 2010-09-27 | 0.00/10 |
| s3e4 | The Bachelors | 2010-10-04 | 7.00/10 |
| s3e5 | Catch Me IF You Cannon | 2010-10-11 | 10.00/10 |
| s3e6 | How Much Is That Liam In The Window | 2010-10-25 | 7.00/10 |
| s3e7 | I See London, I See France... | 2010-11-01 | 0.00/10 |
| s3e8 | Mother Dearest | 2010-11-08 | 9.00/10 |
| s3e9 | They're Playing Her Song | 2010-11-15 | 0.00/10 |
| s3e10 | Best Lei'd Plans | 2010-11-29 | 10.00/10 |
| s3e11 | Holiday Madness | 2010-12-06 | 10.00/10 |
| s3e12 | Liars | 2011-01-24 | 7.00/10 |
| s3e13 | It's Getting Hot in Here | 2011-01-31 | 9.50/10 |
| s3e14 | All About a Boy | 2011-02-07 | 9.00/10 |
| s3e15 | Revenge with the Nerd | 2011-02-14 | 10.00/10 |
| s3e16 | It's High Time | 2011-02-21 | 9.50/10 |
| s3e17 | Blue Naomi | 2011-02-28 | 9.50/10 |
| s3e18 | The Enchanted Donkey | 2011-04-18 | 0.00/10 |
| s3e19 | Nerdy Little Secrets | 2011-04-25 | 0.00/10 |
| s3e20 | Women on the Verge | 2011-05-02 | 0.00/10 |
| s3e21 | The Prom Before the Storm | 2011-05-09 | 0.00/10 |
| s3e22 | To the Future! | 2011-05-16 | 0.00/10 |
| 90210 Season 4 Episodes | yyyy-mm-dd | Rating | |
| s4e1 | Up In Smoke | 2011-09-13 | 0.00/10 |
| s4e2 | Rush Hour | 2011-09-20 | 0.00/10 |
| s4e3 | Greek Tragedy | 2011-09-27 | 0.00/10 |
| s4e4 | Let the Games Begin | 2011-10-04 | 0.00/10 |
| s4e5 | Party Politics | 2011-10-11 | 0.00/10 |
| s4e6 | Benefit of the Doubt | 2011-10-18 | 0.00/10 |
| s4e7 | It's The Great Masquerade, Naomi Clark | 2011-11-01 | 0.00/10 |
| s4e8 | Vegas, Maybe? | 2011-11-08 | 0.00/10 |
| s4e9 | A Thousand Words | 2011-11-15 | 0.00/10 |
| s4e10 | Smoked Turkey | 2011-11-22 | 10.00/10 |
| s4e11 | Project Runaway | 2011-11-29 | 0.00/10 |
| s4e12 | O Holly Night | 2011-12-06 | 0.00/10 |
| s4e13 | Should Old Acquaintance Be Forgot? | 2012-01-17 | 10.00/10 |
| s4e14 | Mama Can You Hear Me? | 2012-01-25 | 0.00/10 |
| s4e15 | Trust, Truth and Traffic | 2012-01-31 | 10.00/10 |
| s4e16 | No Good Deed | 2012-02-07 | 9.00/10 |