The Irwin-Hilmar Branch Library serves about 5,930 residents in the City of Hilmar and is a Merced County Library member. The library system maintains 343,000 volumes and circulates over 256,000 items per year. The Hilmar Branch is open for in-person services from 10 AM on Wednesdays, Fridays, and Saturdays and offers weekly storytime and other library events and services.