Schools in Sinclairville, New York, the US. Schools locations in Sinclairville, New York. Find the nearest schools locations, near you. All types of business services Accounting ATM Courthouse Finance Lawyer School All schools in Sinclairville Cassadaga Valley Special Educ School +1 716-962-4012 Sinclair Drive, Sinclairville, New York 14782 Write a review Phone Directions