Find the CONNSCAN list on yahoo groups. There are a few maps that show the covrage locations. CSP is not staffed by "county" by location...(but are loosely close).
Troop A covers I84 from the NY/CT Line to Waterbury.
Troop H covers I84 from Waterbury to the Vernon area
Troop C covers I84 from Vernon to CT/MA line
There is a small sliver between A and H on I84 that is techniically in another troops area, but don't worry about it. Buy the time you worry about it, you in the other troops coverage anyways.
For PA thru NY, I84 is covered by Troop T (Thruway) on their two repeaters (Channel A & B) with both PL's. NYSP Troop F can also be found on I84 when needed to the Hudson River. The NYSP Car/Car channel is handy to have.
(On edit, I see cg also replied...didn't see it! Sorry chris!)