In this study, HCHO and VOCs of 51 schools and 11 child care centers in Chungnam Area were surveyed from March 2011 to January 2012. The concentration of HCHO in the child care centers and the schools were $21.53{mu}g/m^3$ and $42.80{mu}g/m^3$ respectively. Also, the concentration of VOCs in the child care centers and the schools were $158.90{mu}g/m^3$, $192.53{mu}g/m^3$ respectively. While the concentration of both substances did not exceed the standards in the child care centers, VOCs (4.98%) was slightly higher than HCHO (8.06%) in the schools. The regional differences in the surveyed area were as follows; the HCHO level of child care center located in urban and rural area were $25.52{mu}g/m^3$ and $35.26{mu}g/m^3$ respectively. The VOCs concentration in urban and rural area $144.99{mu}g/m^3$ and $155.92{mu}g/m^3$ respectively. In schools, the concentration of HCHO were $35.73{mu}g/m^3$ in rural area level $57.65{mu}g/m^3$ in urban area. VOCs level was $243.07{mu}g/m^3$ in urban area, which was higly measured than 168.46 of rural area. As the results of the correlation analysis between school environment was highly correlated to the HCHO and the number of students per class (p<0.05).