What is the primary area of expenditure for state governments in the United States?

The primary area of expenditure for state governments in the United States is education, highways, and law enforcement. Education represents the largest portion of state budgets, reflecting the significant investment states make in K-12 public education and higher education systems to ensure access to quality schooling and to promote workforce development. Highways and infrastructure are also major areas of expenditure, as states allocate funds for the maintenance and development of transportation systems, which are essential for economic activity and public safety. Law enforcement expenditures reflect the states' responsibilities in maintaining public order and safety through police, prisons, and various judicial services. This combination highlights the critical services that state governments prioritize in their budgets to support the community's needs and development.