There's always the tried and true: There were more Trump voters in Los Angeles County than in all of Oklahoma. Or the state with the most votes from Trump was California.
This reminds me of a letter written to Mississippi Democrats shortly after the 2019 election there, where the author of the letter pointed out that there are more raw Democratic voters in suburban areas near Jackson than in some of the rural Delta counties combined, and that counties like DeSoto, Harrison, and Rankin have plenty of raw Democratic voters in spite of them being Republican strongholds (thus, the author recommends that MS Democrats focus more on these areas in the future when it comes to canvassing/voter turnout efforts).