Rock Hill Business & Community Assoc. Share: Business Organizations Rock Hill Business & Community Assoc. Visit Website Request Info P.O. Box 280 Rock Hill, NY 12775 (845) 794-0700 Facebook About Map About The Rock Hill Business and Community Association acts as the local chamber of commerce for the hamlet of Rock Hill. The Association, which numbers over 120 members, works to maintain the quality of bu What's Nearby? Distance: 5 10 15 20 25 50 mi.