The headquarters library served primarily as a storage facility. With the growth of the suburbs after World War II, the library declined. By 1966 it was nearly forgotten in the basement of the County Court House. Its revival began with a new Commission who appointed a professional librarian and made plans for relocation. The library leases space in the new Echelon Mall in Voorhees.
Library usage increases quickly to the point where the new headquarters are inadequate.
1973 Camden County Library is designated Area Reference Library to Camden and Gloucester Counties. Haddon Township and Winslow Township Libraries join the county system as branch libraries. The main library moves to the new headquarters building across from the Echelon Mall. It is built on land given to the county by the Rouse Company. 1977 Gloucester Township Library becomes a branch.