[5] Each year, the Library District welcomes up to three million visitors and holds thousands of free events and programs for all ages.

For Maricopa County and Town of Queen Creek residents and property owners, a library card is free.

[7] The Maricopa County Library District also operates a virtual branch and a Books by Mail program that delivers large print materials through the U.S.

[8] The Maricopa County Library District has eMedia to provide downloads and streaming to desktops and mobile devices.

Customers also have access to Consumer Reports (website) and a series of research databases for homework and college prep, genealogy services, health information and more.

The enormous population increases in the 1960s and 1970s led the County Library System to undergo reorganization to meet the demands of the residents.

Several of the libraries in the district have adopted a bookstore format for shelving books and media by subject matter to make finding them easier for customers.

[24] In 2017, the Library District was recognized as one of NACo's 100 Brilliant Ideas at work for its Teens Give Back program.