Schools — about half the whole budget. Most of it is state Chapter 70 aid.
Pensions, health insurance, and state/county assessments the city must pay.
Police and Fire.
Streets, water, sewer, trash, and city facilities.
Paying off money borrowed for buildings — including the new Lowell High School.
Health, the Council on Aging, veterans, and recreation.
The Pollard Memorial Library and recreation programs.
Every figure is from the City of Lowell FY2025 Adopted Budget (p.81 (all-funds category summary)), adopted 2024-06-04. Lowell also runs an interactive open-budget portal. This is Lowell's own budget — set by Lowell City Council, not by the county (which no longer governs).