N.J. Stat. § 40:33-1: County library; establishment

The board of chosen freeholders of every county shall, in the manner hereinafter in this article provided, establish a free public library to be known as "the free county library" . This library shall be established for such subdivisions of the county as do not maintain and control free public libraries, pursuant to the provisions of chapter 54 of this title (s. 40:54-1 et seq.).