The District 155 Finance Department is responsible for maintaining a balanced budget, evaluating and implementing responsible cost-saving measures, pursuing alternative and sustainable sources of revenue, using data-driven financial variables for all estimates, aligning resources to support the District's vision, and being transparent in the conduct of finances. 

District 155 is one of Illinois' most financially healthy school districts, having received the highest financial rating from the Illinois State Board of Education for each of the last 20 fiscal years. The Financial Recognition rating is based on the fund balance to revenue ratio, the expenditures to revenue ratio, the days cash on hand, the short-term borrowing, and the long-term debt. For the 10th year in a row, Community High School District 155 received financial recognition from the Government Finance Officers and the Association of School Business Officials (ASBO) International for its 2024 Annual Comprehensive Financial Report (ACFR).