| Episode Title | Overnight Rating/Share | Adults 18-49 Rating/Share | Final Rating | Final Share | Total Viewers | First Rerun Rating |
| 001. "Broken Bow" Part I
002. "Broken Bow" Part II |
9.1/12 | 6.3/16 | 7.0 | 11 | 12,540,000 | 2.4/4/3.9 |
| 003. "Fight or Flight" | 7.2/11 | 4.6/13 | 5.7 | 9 | 9,180,000 | 2.8/5/4.1 |
| 004. "Strange New World" | 6.8/10 | 4.2/11 | 5.0 | 8 | 7,810,000 | 2.9/5/4.3 |
| 005. "Unexpected" | 6.6/10 | 4.0/11 | 5.2 | 8 | 8,160,000 | 2.3/4/3.6 |
| 006. "Terra Nova" | 6.4/10 | 4.2/12 | 5.1 | 8 | 8,350,000 | 2.7/5/4.1 |
| 007. "The Andorian Incident" | 5.8/9 | 3.6/10 | 4.5 | 7 | 7,190,000 | 2.5/4/3.9 |
| 008. "Breaking the Ice" | 6.5/10 | 3.9/10 | 4.9 | 8 | 7,360,000 | 2.3/4/3.8 |
| 009. "Civilization" | 6.0/9 | 3.6/10 | 4.6 | 7 | 7,140,000 | 2.8/5/4.5 |
| 010. "Fortunate Son" | 5.6/9 | 3.1/10 | 3.8 | 7 | 6,110,000 | 1.8/3/2.9 |
| 011. "Cold Front" | 6.0/9 | 3.5/10 | 4.7 | 7 | 7,330,000 | 1.7/3/2.6 |
| 012. "Silent Enemy" | 5.6/8 | 3.2/8 | 3.7 | 6 | 6,110,000 | 2.5/4/3.9 |
| 013. "Dear Doctor" | 5.5/8 | 2.7/7 | 3.7 | 6 | 5,650,000 | 2.4/4/3.8 |
| 014. "Sleeping Dogs" | 5.7/8 | 3.2/8 | 3.9 | 6 | 6,500,000 | 2.3/4/3.3 |
| 015. "Shadows of P'Jem" | 5.8/9 | 3.1/8 | 3.8 | 6 | 6,050,000 | 1.9/3/3.0 |
| 016. "Shuttlepod One" | 5.1/8 | 2.9/8 | 3.4 | 5 | 5,330,000 | 1.6/3/2.6 |
| 017. "Fusion" | 5.1/8 | 2.2/6 | 3.0 | 5 | 4,490,000 | 2.0/3/3.1 |
| 018. "Rogue Planet" | 4.9/7 | 2.3/6 | 3.3 | 5 | 4,690,000 | 1.3/2/1.8 |
| 019. "Acquisition" | 5.3/8 | 2.6/8 | 3.4 | 6 | 5,450,000 | 1.9/4/2.7 |
| 020. "Oasis" | 5.1/8 | 2.7/8 | 3.3 | 5 | 5,640,000 | 1.6/3/2.1 |
| 021. "Detained" | 4.6/7 | 2.3/7 | 3.0 | 5 | 4,880,000 | 1.8/3/2.7 |
| 022. "Vox Sola" | 4.9/8 | 2.8/9 | 3.4 | 6 | 5,400,000 | 1.6/3/2.4 |
| 023. "Fallen Hero" | 4.9/8 | 2.9/8 | 3.2 | 5 | 5,340,000 | 1.7/3/2.4 |
| 024. "Desert Crossings" | 4.4/7 | 2.5/6 | 3.0 | 5 | 4,680,000 | 1.3/2/1.9 |
| 025. "Two Days and Two Nights" | 4.7/7 | 2.8/9 | 3.1 | 6 | 5,260,000 | 1.6/3/2.3 |
| 026. "Shockwave" | 4.9/8 | 2.7/8 | 3.3 | 6 | 5,280,000 | 1.5/2/2.1 |
|
SEASON AVERAGE: |
5.83/8.77 | 3.39/9.35 | 4.15 | 6.69 | 6,710,000 |
| Episode Title | Overnight Rating/Share | Adults 18-49 Rating/Share | Final Rating | Final Share | Total Viewers | First Rerun Rating |
| 027. "Shockwave, Part II" | 4.9/8 | 2.3/7 | 3.2 | 5 | 4,890,000 | 2.6/4/4.2 |
| 028. "Carbon Creek" | 4.8/7 | 2.4/7 | 3.0 | 5 | 4,840,000 | 2.3/4/3.2 |
| 029. "Minefield" | 5.1/8 | 2.5/7 | 3.5 | 6 | 5,250,000 | 1.2/2/1.6 |
| 030. "Dead Stop" | 5.4/8 | 2.5/7 | 3.5 | 6 | 5,410,000 | 2.0/3/2.9 |
| 031. "A Night In Sickbay" | 5.1/8 | 3.1/9 | 3.9 | 6 | 6,260,000 | 2.0/3/2.8 |
| 032. "Marauders" | 5.0/7 | 2.4/7 | 3.6 | 6 | 5,600,000 | 1.8/3/2.5 |
| 033. "The Seventh" | 4.7/7 | 2.3/6 | 3.2 | 5 | 4,820,000 | 1.6/3/2.4 |
| 034. "The Communicator" | 4.5/7 | 2.2/6 | 3.0 | 5 | 4,460,000 | 2.1/3/2.9 |
| 035. "Singularity" | 4.8/7 | 2.2/6 | 3.1 | 5 | 4,830,000 | 1.8/3/2.8 |
| 036. "Vanishing Point" | 3.4/5 | 1.8/6 | 2.5 | 4 | 3,780,000 | 1.7/2/2.5 |
| 037. "Precious Cargo" | 4.5/7 | 2.2/6 | 3.1 | 5 | 4,670,000 | 2.0/3/3.2 |
| 038. "The Catwalk" | 4.2/7 | 2.2/6 | 3.0 | 5 | 4,730,000 | 1.8/3/2.3 |
| 039. "Dawn" | 4.2/6 | 1.8/5 | 2.5 | 4 | 3,990,000 | 1.6/3/2.3 |
| 040. "Stigma" | 4.2/6 | 2.3/6 | 2.9 | 4 | 4,400,000 | 1.4/3/2.1 |
| 041. "Cease Fire" | 4.3/6 | 2.2/6 | 2.9 | 5 | 4,780,000 | 1.4/2/1.8 |
| 042. "Future Tense" | 4.5/7 | 2.1/5 | 2.9 | 4 | 4,620,000 | 1.7/3/2.6 |
| 043. "Canamar" | 4.5/7 | 1.8/5 | 2.8 | 4 | 4,100,000 | 1.3/3/1.8 |
| 044. "The Crossing" | 3.9/6 | 1.8/5 | 2.6 | 4 | 3,850,000 | 1.6/3/2.3 |
| 045. "Judgment" | 3.8/6 | 1.7/5 | 2.5 | 4 | 3,690,000 | 1.3/3/1.9 |
| 046. "Horizon" | 3.5/5 | 1.7/5 | 2.2 | 4 | 3,370,000 | 1.4/3/1.9 |
| 047. "The Breach" | 3.8/6 | 1.5/4 | 2.3 | 4 | 3,190,000 | 1.4/2/1.9 |
| 048. "Cogenitor" | 4.0/6 | 1.7/5 | 2.7 | 4 | 4,080,000 | 1.3/3/1.9 |
| 049. "Regeneration" | 4.2/6 | 1.9/5 | 2.7 | 4 | 4,120,000 | 1.4/2/2.1 |
| 050. "First Flight" | 4.2/6 | 1.6/4 | 2.4 | 4 | 3,300,000 | 1.6/3/1.9 |
| 051. "Bounty" | 4.3/6 | 1.8/4 | 2.3 | 3 | 3,540,000 | 1.6/3/2.4 |
| 052. "The Expanse" | 4.4/7 | 1.8/5 | 2.8 | 4 | 3,880,000 | 1.9/3/2.9 |
|
SEASON AVERAGE: |
4.39/6.62 | 2.07/5.73 | 2.89 | 4.58 | 4,400,000 |
| Episode Title | Overnight Rating/Share | Adults 18-49 Rating/Share | Final Rating | Final Share | Total Viewers | First Rerun Rating |
| 053. "The Xindi" | 4.4/7 | 1.6/6 | 2.6 | 5 | 4,070,000 | 1.9/3/2.6 |
| 054. "Anomaly" | 4.2/7 | 1.8/6 | 2.6 | 5 | 4,290,000 | 2.0/3/2.8 |
| 055. "Extinction" | 4.4/7 | 1.9/6 | 2.6 | 4 | 4,000,000 | 1.5/2/2.1 |
| 056. "Rajiin" | 4.0/6 | 2.0/6 | 2.7 | 4 | 4,520,000 | 1.9/3/2.4 |
| 057. "Impulse" | 3.9/6 | 1.9/6 | 2.8 | 4 | 4,170,000 | 1.1/3/1.5 |
| 058. "Exile" | 3.6/5 | 1.5/4 | 2.3 | 4 | 3,460,000 | 1.1/2/1.8 |
| 059. "The Shipment" | 3.9/6 | 1.6/4 | 2.5 | 4 | 3,700,000 | 1.6/3/2.3 |
| 060. "Twilight" | 3.9/6 | 1.6/4 | 2.6 | 4 | 4,060,000 | 1.8/3/2.7 |
| 061. "North Star" | 4.1/6 | 1.7/5 | 2.6 | 4 | 3,880,000 | 1.7/3/2.4 |
| 062. "Similitude" | 4.1/6 | 2.1/6 | 3.0 | 5 | 4,590,000 | 1.4/2/2.2 |
| 063. "Carpenter Street" | 2.9/5 | 1.5/5 | 2.5 | 4 | 3,710,000 | 1.4/2/2.0 |
| 064. "Chosen Realm" | 3.5/5 | 1.6/4 | 2.6 | 4 | 3,930,000 | 1.3/2/1.9 |
| 065. "Proving Ground" | -- | 1.4/3 | 2.2 | 3 | 3,440,000 | 1.5/2/2.0 |
| 066. "Stratagem" | 3.4/5 | 1.5/4 | 2.6 | 4 | 4,080,000 | 1.3/2/1.8 |
| 067. "Harbinger" | 3.6/5 | 1.5/4 | 2.6 | 4 | 3,950,000 | 1.2/2/1.8 |
| 068. "Doctor's Orders" | 3.7/5 | 1.5/4 | 2.6 | 4 | 3,730,000 | 1.1/2/1.8 |
| 069. "Hatchery" | 3.5/5 | 1.4/4 | 2.4 | 4 | 3,520,000 | 0.8/2/1.1 |
| 070. "Azati Prime" | 3.7/6 | 1.6/4 | 2.6 | 4 | 3,780,000 | 1.4/2/2.1 |
| 071. "Damage" | 3.1/5 | 1.2/4 | 2.0 | 3 | 2,860,000 | 0.8/2/1.1 |
| 072. "The Forgotten" | 3.3/5 | 1.3/4 | 2.2 | 4 | 3,350,000 | 0.7/1/1.0 |
| 073. "E2" | 3.3/5 | 1.3/4 | 2.2 | 4 | 3,250,000 | 0.7/1/1.0 |
| 074. "The Council" | 3.4/5 | 1.4/4 | 2.4 | 4 | 3,410,000 | 0.8/2/1.2 |
| 075. "Countdown" | -- | 1.5/4 | 2.3 | 4 | 3,460,000 | 1.0/2/1.4 |
| 076. "Zero Hour" | 3.7/6 | 1.7/5 | 2.7 | 4 | 3,910,000 | 1.2/2/1.7 |
|
SEASON AVERAGE: |
3.71/5.64 | 1.59/4.58 | 2.51 | 4.04 | 3,800,000 |
| Episode Title | Overnight Rating/Share | Adults 18-49 Rating/Share | Final Rating | Final Share | Total Viewers | First Rerun Rating |
| 077. "Storm Front" | 3.0/5 | 1.3/4 | 1.8 | 3 | 2,890,000 | 0.9/2/1.2 |
| 078. "Storm Front, Part II" | -- | 1.4/5 | 1.8 | 3 | 3,110,000 | 1.2/2/1.9 |
| 079. "Home" | -- | 1.4/5 | 2.0 | 4 | 3,160,000 | |
| 080. "Borderland" | -- | 1.4/5 | 2.1 | 4 | 3,180,000 | 1.5/3/2.1 |
| 081. "Cold Station 12" | -- | 1.5/5 | 2.1 | 4 | 3,390,000 | 1.2/2/1.9 |
| 082. "The Augments" | -- | 1.3/4 | 2.1 | 4 | 3,390,000 | 1.2/2/1.6 |
| 083. "The Forge" | -- | 1.3/4 | 2.0 | 4 | 3,150,000 | |
| 084. "Awakening" | -- | 1.4/5 | 2.0 | 4 | 3,380,000 | |
| 085. "Kir'Shara" | -- | 1.3/4 | 2.2 | 4 | 3,200,000 | |
| 086. "Daedalus" | -- | 1.2/4 | 1.9 | 3 | 3,030,000 | |
| 087. "Observer Effect" | -- | 1.1/3 | 1.7 | 3 | 2,760,000 | |
| 088. "Babel One" | -- | 1.0/3 | 1.8 | 3 | 2,530,000 | |
| 089. "United" | -- | 1.1/4 | 1.8 | 3 | 2,810,000 | |
| 090. "The Aenar" | -- | 1.2/4 | 1.9 | 3 | 3,180,000 | |
| 091. "Affliction" | -- | 1.3/4 | 2.0 | 3 | 3,170,000 | |
| 092. "Divergence" | -- | 1.2/4 | 1.9 | 3 | 2,960,000 | |
| 093. "Bound" | -- | 1.1/4 | 1.5 | 3 | 2,560,000 | |
| 094. "In A Mirror, Darkly" | -- | 1.0/3 | 1.4 | 3 | 2,590,000 | |
| 095. "In A Mirror, Darkly, Part II" | -- | 1.2/5 | 1.7 | 3 | 2,920,000 | |
| 096. "Demons" | -- | 1.3/5 | 1.8 | 3 | 3,010,000 | |
| 097. "Terra Prime" | -- | 1.7/6 | 2.2 | 4 | 3,800,000 | |
| 098. "These Are the Voyages..." | ||||||
|
SEASON AVERAGE: |
3.00/5.00 | 1.29/4.36 | 1.90 | 3.41 | 3,090,000 |