There's a really easy calculator available at https://chooseev.com/savings-calculator/ You can play with different values for vehicles and local prices.[0][1]

It looks to me like an EV makes as much sense in Texas as anywhere. The places where EVs don't make sense currently have average gas prices but high electricity prices, like the Northeast.

[0] https://gasprices.aaa.com/todays-state-averages/

[1] https://www.eia.gov/electricity/monthly/epm_table_grapher.ph...