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The Best Seasons of It's Always Sunny in Philadelphia

Every season of It's Always Sunny in Philadelphia ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of It's Always Sunny in Philadelphia!

Top season
Season 9
8.6avg
Best episode
S10E4 Charlie Work
9.813,888 votes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes
#1

Season 9

10 Episodes

First Aired: Sep 2013

8.6/ 10
Average Rating
Best episodeE3 · The Gang Tries Desperately to Win an Award 9.2
#2

Season 5

12 Episodes

First Aired: Sep 2009

8.6/ 10
Average Rating
Best episodeE10 · The D.E.N.N.I.S. System 9.3
#3

Season 4

13 Episodes

First Aired: Sep 2008

8.6/ 10
Average Rating
Best episodeE13 · The Nightman Cometh 9.7

Other Seasons

#4

Season 12

10 Episodes

First Aired: Jan 2017

8.5/ 10
Average Rating
Best episodeE2 · The Gang Goes to a Water Park 9.5
#5

Season 8

10 Episodes

First Aired: Oct 2012

8.5/ 10
Average Rating
Best episodeE9 · The Gang Dines Out 9.1
#6

Season 3

15 Episodes

First Aired: Sep 2007

8.5/ 10
Average Rating
Best episodeE9 · Sweet Dee's Dating a Retarded Person 9.2
#7

Season 2

10 Episodes

First Aired: Jun 2006

8.4/ 10
Average Rating
Best episodeE4 · Mac Bangs Dennis' Mom 9.2
#8

Season 11

10 Episodes

First Aired: Jan 2016

8.4/ 10
Average Rating
Best episodeE5 · Mac & Dennis Move to the Suburbs 9.4
#9

Season 10

10 Episodes

First Aired: Jan 2015

8.4/ 10
Average Rating
Best episodeE4 · Charlie Work 9.8
#10

Season 7

13 Episodes

First Aired: Sep 2011

8.4/ 10
Average Rating
Best episodeE2 · The Gang Goes to the Jersey Shore 9.2
#11

Season 6

13 Episodes

First Aired: Sep 2010

8.3/ 10
Average Rating
Best episodeE13 · A Very Sunny Christmas 9.2
#12

Season 16

8 Episodes

First Aired: Jun 2023

8.2/ 10
Average Rating
Best episodeE8 · Dennis Takes a Mental Health Day 9.2
#13

Season 17

8 Episodes

First Aired: Jul 2025

8.1/ 10
Average Rating
Best episodeE7 · The Gang Gets Ready for Prime Time 9.0
#14

Season 1

7 Episodes

First Aired: Aug 2005

8.1/ 10
Average Rating
Best episodeE7 · Charlie Got Molested 8.4
#15

Season 15

8 Episodes

First Aired: Dec 2021

8.1/ 10
Average Rating
Best episodeE8 · The Gang Carries a Corpse Up a Mountain 8.8
#16

Season 14

10 Episodes

First Aired: Sep 2019

8.0/ 10
Average Rating
Best episodeE6 · The Janitor Always Mops Twice 8.5
#17

Season 18

10 Episodes

First Aired: Aug 2026

7.9/ 10
Average Rating
Best episodeE9 · Frank's Team: A Dark Day for Baseball 8.5
#18

Season 13

10 Episodes

First Aired: Sep 2018

7.8/ 10
Average Rating
Best episodeE4 · Time's Up for the Gang 9.2

Keep going

Top-rated It's Always Sunny in Philadelphia episodes

  1. #1Charlie Work S10E49.8
  2. #2The Nightman Cometh S4E139.7
  3. #3The Gang Goes to a Water Park S12E29.5
  4. #4Mac & Dennis Move to the Suburbs S11E59.4
  5. #5Hero or Hate Crime? S12E69.4

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