The Salt Lake County Public Library is among the top 10 in the more than 500,000 category.
"This is very good news, it confirms that Utah public libraries are cost effective," State Librarian Donna Jones Morris, said.
"The criteria are based on circulation, staff, funding levels and hours of operation. It's a certainty that Utahns value and use their libraries."
Salt Lake County Library System Director Jim Cooper said the rankings are verification that county residents continue to find what they are looking for at our libraries.
"We love these ratings. They are important indicators as to the significant role libraries play in Utah and the nation," Salt Lake Public Library Director Nancy Tessman said.
"It's great to know the numbers of library patrons is on the increase."