NICS is located at 811 N. Kentucky Ave., Mason City, IA 50401. This K-12 school leads the nation in academic standardized testing - ITBS. The warm, friendly atmosphere and individual attention given in low student to teacher ratios has helped lead to 300% size in 5 years and 400% size in 7 years. Please call today at 641-423-6440 to find out more about the school. The school is a registered 501(c)(3) non-profit corporation with the IRS.