PD - Sig 226 .40
SO - G22 or G23 (deputy's preference) .40
If you're in SWAT for PD/SO, when you're on a SWAT call you can carry whichever sidearm you want to. Lots of guys have moved to 1911's.
Staties - G21SF .45, unless you've been there forever, in which case you predate the mandatory issue clause, and you can carry whatever you want.
The surrounding PD's carry all Glocks, all G21's, G22's, or G23's. I don't know of a nearby department that carries anything in 9mm.