Dexter (Showtime): Ratings Recap

Showtime's 'Dexter' premiered October 1, 2006 to 603,000 viewers, fell to 381,000 by its third week, but dramatically rose throughout the rest of the season, concluding its first season to 1.08 million viewers, after hitting 760,000 the week prior. The series aired a total of 96 episodes over the course of eight seasons, ultimately concluding in 2013 to a 1.28 18-49 rating with a series high 2.8 million total viewers. 

Dexter Season 1 Ratings (2006)
Episode #	Viewers (millions)	18-49 rating
101	0.603	--
102	0.413	0.19
103	0.381	0.20
104	0.490	0.25
105	0.462	0.24
106	0.587	0.32
107	0.614	0.33
108	0.565	0.24
109	0.760	0.37
110	0.785	0.41
111	0.760	--
112	1.08	--

Dexter Season 2 Ratings (2007)
Episode #	Viewers (millions)	18-49 rating
201	1.009	0.5
202	0.889	0.4
203	0.954	--
204	0.798	0.4
205	0.625	0.3
206	0.848	0.48
207	0.841	0.4
208	1.228	0.6
209	1.025	0.49
210	1.076	0.5
211	0.890	0.4
212	1.016	0.4

Dexter Season 3 Ratings (2008)
Episode #	Viewers (millions)	18-49 rating
301	1.22	0.5
302	0.786	0.3
303	1.07	0.5
304	0.863	0.3
305	1.00	0.5
306	1.04	0.5
307	0.83	0.4
308	0.96	0.5
309	1.13	0.6
310	1.34	0.7
311	1.336	0.67
312	1.51	0.7

Dexter Season 4 Ratings (2009)
Episode #	Viewers (millions)	18-49 rating
401	1.52	0.8
402	1.374	0.6
403	1.242	0.5
404	1.509	0.7
405	1.676	0.8
406	1.876	0.9
407	1.755	0.9
408	1.698	0.8
409	1.762	0.8
410	1.795	0.8
411	2.107	1.1
412	2.575	1.3

Dexter Season 5 Ratings (2010)
Episode #	Viewers (millions)	18-49 rating
501	1.769	0.8
502	1.701	0.8
503	1.864	0.9
504	1.788	0.9
505	1.943	0.9
506	1.632	0.8
507	1.900	0.9
508	1.939	0.9
509	2.110	1.0
510	2.537	1.1
511	2.261	1.1
512	2.480	1.1

Dexter Season 6 Ratings (2011)
Episode #	Viewers (millions)	18-49 rating
601	2.188	1.1
602	1.714	0.9
603	1.502	0.7
604	1.888	0.9
605	1.799	0.8
606	1.982	1.0
607	1.985	1.0
608	2.050	1.0
609	1.887	0.9
610	1.876	0.9
611	1.924	0.9
612	2.230	1.0

Dexter Season 7 Ratings (2012)
Episode #	Viewers (millions)	18-49 rating
701	2.403	1.3
702	2.103	1.1
703	1.984	1.0
704	2.176	1.1
705	2.275	1.2
706	1.985	1.0
707	2.007	1.1
708	2.251	1.1
709	2.124	1.0
710	2.082	1.1
711	2.598	1.3
712	2.749	1.4

Dexter Season 8 Ratings (2013)
Episode #	Viewers (millions)	18-49 rating
801	2.484	1.2
802	2.524	1.2
803	2.431	1.1
804	2.471	1.2
805	2.550	1.2
806	2.208	1.1
807	1.904	0.9
808	1.943	0.9
809	2.286	1.1
810	2.340	1.1
811	2.400	1.04
812	2.799	1.28

Source: Nielsen Media Research