Abstract
Concerns about school staff shortages are longstanding. However, data on shortages are limited, dated, and rare for non-teaching staff. I use administrative data on unfilled certificated positions in Illinois public schools from the fall of 2022 to paint a detailed picture of shortages across teaching, administrative, and other roles, between districts, and between schools. Teacher and administrator shortage rates are low on average, but shortages of other staff - mostly paraprofessionals - are more severe. However, staff-to-student ratios have increased recently for all staff types. Shortages vary substantially between schools within districts and across urbanicity, grade level, and student characteristics, often in ways that likely exacerbate inequities.