iZombie Episode Ratings Heatmap
2015 · 5 Seasons · 71 Episodes · Overall Score: 7.6/10 (13 rated)
Season 1 holds the highest collective average score across the series.
Season 1 Details →Lowest score variance (σ = 0.26), maintaining an average of 7.6.
Complete Episode Rating Matrix
Interactive score chart by season and episode number. Darker green indicates higher ratings; amber and red denote lower reception.
| Episode | Season 1 | Season 2 | Season 3 | Season 4 | Season 5 |
|---|---|---|---|---|---|
| Ep 1 | 7.3 | – | – | – | – |
| Ep 2 | 7.2 | – | – | – | – |
| Ep 3 | 7.6 | – | – | – | – |
| Ep 4 | 7.4 | – | – | – | – |
| Ep 5 | 7.6 | – | – | – | – |
| Ep 6 | 7.6 | – | – | – | – |
| Ep 7 | 7.3 | – | – | – | – |
| Ep 8 | 7.5 | – | – | – | – |
| Ep 9 | 7.4 | – | – | – | – |
| Ep 10 | 7.5 | – | – | – | – |
| Ep 11 | 7.8 | – | – | – | – |
| Ep 12 | 7.9 | – | – | – | – |
| Ep 13 | 8.1 | – | – | – | – |
| Ep 14 | – | – | – | – | – |
| Ep 15 | – | – | – | – | – |
| Ep 16 | – | – | – | – | – |
| Ep 17 | – | – | – | – | – |
| Ep 18 | – | – | – | – | – |
| Ep 19 | – | – | – | – | – |
| Season Avg | 7.6 | – | – | – | – |
Ratings Analysis & Trajectory
Across 5 seasons and 71 episodes, iZombie has earned an overall series rating of 7.6 out of 10. The series displays remarkable consistency across its narrative arc, maintaining reliable ratings from premiere to conclusion.
The single highest-rated hour of television in the series is Season 1, Episode 13 ("Blaine's World"), rated at an extraordinary 8.1/10 with 28 ratings. Conversely, the lowest-rated installment is Season 1, Episode 2 ("Brother, Can You Spare a Brain?"), landing at 7.2/10.
The most precipitous single-episode shift occurred in Season 1 between Episode 6 ("Virtual Reality Bites", 7.6) and Episode 7 ("Maternity Liv", 7.3), a swing of 0.3 points.
Top 10 Highest Rated Episodes of iZombie
| Rank | Episode | Title | Score | Votes | Air Date |
|---|---|---|---|---|---|
| #1 | Season 1, Ep 13 | Blaine's World | 8.1 | 28 | Jun 9, 2015 |
| #2 | Season 1, Ep 12 | Dead Rat, Live Rat, Brown Rat, White Rat | 7.9 | 28 | Jun 2, 2015 |
| #3 | Season 1, Ep 11 | Astroburger | 7.8 | 28 | May 26, 2015 |
| #4 | Season 1, Ep 3 | The Exterminator | 7.6 | 33 | Mar 31, 2015 |
| #5 | Season 1, Ep 5 | Flight of the Living Dead | 7.6 | 32 | Apr 14, 2015 |
| #6 | Season 1, Ep 6 | Virtual Reality Bites | 7.6 | 32 | Apr 21, 2015 |
| #7 | Season 1, Ep 8 | Dead Air | 7.5 | 28 | May 5, 2015 |
| #8 | Season 1, Ep 10 | Mr. Berserk | 7.5 | 28 | May 19, 2015 |
| #9 | Season 1, Ep 4 | Liv and Let Clive | 7.4 | 33 | Apr 7, 2015 |
| #10 | Season 1, Ep 9 | Patriot Brains | 7.4 | 33 | May 12, 2015 |