Who are the only Mariners to hit 30 or more home runs in a season?

10 Players have hit 30 or more home runs just once for the Mariners

Daniel Vogelbach hit 30 in 2019
Tino Martinez hit 31 in 1995
Paul Sorrento hit 31 in 1997
Russell Branyan hit 31 in 2009
Eugenio Suarez hit 31 in 2022
Gorman Thomas hit 32 in 1985
Raul Ibanez hit 33 in 2006
Edgar Martinez hit 37 in 2000
Robinson Cano hit 39 in 2016
Mitch Haniger hit 39 in 2021

The first and last on this last are the most recent ones to do it, and Vogey's first half of 2019 really stands out. He hit 21 HR by the All-Star break, making the game for the first, and only, time in his career. He would hit 5 more over the next 16 games, but really cool down and hit just .140/.284/.256 with 4 HR over the last 43 games he played in. It was still enough to get him on the list. Meanwhile, Haniger hit 39 in 2021, and hasn't been healthy since, and now I'm sad.

Gorman Thomas, though. That's the answer to the trivia question posted above. He was the first Mariners player to break the 30 HR mark, hitting 35 in 1985, despite a .215 BA. He was a slugger with the Brewers hitting 175 HR over a 5 year stretch. He came to Seattle in 1984 and barely played, managed 135 games in 1985, and was released in June of 1986.

We have a handful of other first baseman on this list, from Russell Branyan to Tino to Sorrento, who all hit 31. Geno managed it last year, but isn't going to get there again unless he has an insane September. RAUUUUUUUUUL did it once, so did Cano, and Edgar easily cleared it in 2000 at the age of 37... while driving in 145 runs!