From Putnam, Dutchess, Orange & Points North : 
I-84 East to Taconic State Parkway South.
Exit parkway at Route 6 Mahopac / Shrub Oak exit.
At end of ramp, turn left onto Route 6 East.
Follow Route 6 (4 miles) to Mid-County on the left.
 
Or

I-84 East to Exit 19 Carmel / Route 312.  
Exit & at traffic light, make a right onto Route 312.  
Follow Route 312 to traffic light, make a right onto Route 6 west.
Go to 4th traffic light (approx. 2 miles) and make left.
Continue on Route 6 west (approx. 7 miles) to Mid-County on the right.

From Interstate 684 :
I-684 North to Exit 6 (Cross River / Katonah / Route 35).
At end of ramp, make left onto Route 35 West.  
Continue to 5th traffic light (approx. 5 miles) to Route 118 North.  
Make right onto Route 118 north and continue to Route 6.
Make a right onto Route 6 and continue ∏ mile.  
Mid-County is on the left.

From Southern Westchester :  
Take Bronx River Parkway North
into Sprain Parkway North, to Taconic State Pkwy. North.
Exit at Route 6 (Mahopac / Shrub Oak exit).
At end of ramp, make a right onto Route 6 East.
Follow Route 6 (approximately 4 miles) to Mid-County on the left.

From Rockland County :
Take Tappan Zee Bridge into
 I-287 East / Cross Westchester Expressway to Exit 8 (towards White
Plains).   Merge onto I-287 East to Exit 4 (Route 100 / Hartsdale).   Make
left onto Knollwood Road and left onto I-287 West.  
Merge onto I-287 West to Exit 3 (Sprain Pkwy / Taconic Pkwy) .
Bear left onto Sprain Pkwy North.  Take to Taconic
Pkwy North, exit at Route 6.   (Mahopac / Shrub Oak exit).
At end of ramp, make a right onto Route 6 East.
Follow Route 6 (approximately 4 miles) to Mid-County on the left.