The Expanse (Syfy): Ratings Recap

UPDATED 2021: Syfy's 'Expanse' premiered in 2015 to a 0.33 adults 18-49 rating and 1.19 million viewers, and dropped by half by week 3, down to a 0.15 rating & 676,000 viewers. The first season concluded to a 0.20 rating & 555,000 viewers and averaged a 0.22 & 703,000 viewers over 10 episodes. A second season premiered in 2017 to a 0.25 rating & 700,000 viewers and averaged a 0.18 & 562,000 viewers. A third season premiered in 2018 and remained remarkably stable with the previous season in the demo (also 0.18) and impressively rose in total viewers (up to 606,000). A fourth season premiered on Amazon Prime in 2019, a fifth season premiered in 2020, and a sixth season is scheduled to premiere in 2022.

The Expanse Season 1 Ratings (2015-16)
Episode Date	Viewers (millions)	18-49 rating
Dec. 14, 2015	1.189	0.33
Dec. 15, 2015	0.854	0.27
Dec. 22, 2015	0.676	0.15
Dec. 29, 2015	0.633	0.17
Jan. 5, 2016	0.631	0.22
Jan. 12, 2016	0.713	0.22
Jan. 19, 2016	0.502	0.17
Jan. 26, 2016	0.721	0.25
Feb. 2, 2016	0.555	0.20
Feb. 2, 2016	0.555	0.20
Average	0.703	0.22

The Expanse Season 2 Ratings (2017)
Episode Date	Viewers (millions)	18-49 rating
Feb. 1, 2017	0.700	0.25
Feb. 1, 2017	0.700	0.25
Feb. 8, 2017	0.587	0.18
Feb. 15, 2017	0.534	0.14
Feb. 22, 2017	0.600	0.20
Mar. 1, 2017	0.625	0.22
Mar. 8, 2017	0.451	0.15
Mar. 15, 2017	0.460	0.13
Mar. 22, 2017	0.471	0.11
Mar. 29, 2017	0.573	0.17
Apr. 5, 2017	0.504	0.16
Apr. 12, 2017	0.515	0.15
Apr. 19, 2017	0.581	0.18
Average	0.562	0.18

The Expanse Season 3 Ratings (2018)
Episode Date	Viewers (millions)	18-49 rating
Apr. 11, 2018	0.653	0.21
Apr. 18, 2018	0.500	0.15
Apr. 25, 2018	0.553	0.18
May 2, 2018	0.590	0.16
May 9, 2018	0.555	0.18
May 16, 2018	0.609	0.19
May 23, 2018	0.625	0.17
May 30, 2018	0.609	0.20
Jun. 6, 2018	0.568	0.16
Jun. 13, 2018	0.615	0.17
Jun. 20, 2018	0.670	0.18
Jun. 27, 2018	0.730	0.19
Jun. 27, 2018	0.606	0.14
Average	0.606	0.18

Source: Nielsen Media Research