2/3rds of gun deaths are suicides, and so any differential in the firearm suicide rate will tend to swamp differences in the firearm homicide rate.

[1] puts CA as 3.4 gun homicides per 100,000 people per year, and TX at 3.2. Top of the list is DC at 16.5 (and then LA at 7.7), bottom of the list is VT at 0.3.

1: https://en.wikipedia.org/wiki/Firearm_death_rates_in_the_Uni...

But is so with gun murders? According to this chart (2015 data) is it not one of the lowest

https://en.wikipedia.org/wiki/Gun_violence_in_the_United_Sta...

however it did seemingly fall in rank if not numbers from 2010

https://en.wikipedia.org/wiki/Firearm_death_rates_in_the_Uni...