Kampong Chaam is the top region by pre-schools staff in Cambodia. As of 2012, pre-schools staff in Kampong Chaam was 401 that accounts for 9.95% of Cambodia's pre-schools staff. The top 5 regions (others are Siem Reab, Phnom Penh, Kandaal, and Banteay Mean Chey) account for 44.39% of it. Cambodia's total pre-schools staff was estimated at 4,032 in 2012.