For no particular reason I suddenly thought about flights within a county (in US). Are there any direct, non-stop flights scheduled anywhere in the country that go from one airport to another in the same county?

I can find a number of connecting flights within LA County, like LAX to LGB (on 10-11 hours on AA via DFW), LAX to BUR (8-9 hours on AA via DFW) or BUR to LGB (5 hours on HP via PHX). All of these take longer than walking, maybe except for LGB to BUR (not that I intend to either walk or fly), but what's available out there?