Schools in Callao, Missouri, the US. Schools locations in Callao, Missouri. Find the nearest schools locations, near you. All types of business services School All schools in Callao Callao Elementary School School +1 660-768-5541 403 Pine Street, Callao, Missouri 63534 Write a review Phone Website Directions Chariton School School Callao, Callao, Missouri 63534 Write a review Phone Directions Davis School School Callao, Callao, Missouri 63534 Write a review Phone Directions Kaseyville School School Callao, Callao, Missouri 63534 Write a review Phone Directions South Ward School School Callao, Callao, Missouri 63534 Write a review Phone Directions