N.J. Stat. § 19:32-26
In any county of the second class and in any county of the fifth class, the governing body may establish, by ordinance or resolution, as appropriate, the office of superintendent of elections for the county, and said office when once established may be altered or abolished in accordance with the provisions of P.L. 2018, c. 163(C.19:32-54 et al.).
The governing body shall file a certified copy of such ordinance or resolution, attested by the chief elected executive officer or director of the board of freeholders, if appropriate and clerk of the board, in the office of the Secretary of State within 10 days after adoption, and the ordinance or resolution shall take effect at the expiration of 30 days after the next primary election for the general election, or the next general election, after adoption whichever shall occur first.
The office so established shall be filled by some suitable person who shall be nominated by the Governor with the advice and consent of the Senate for a term of five years from the date of his appointment and until his successor is appointed and shall have qualified. In the event that no such appointment to such office is made within 30 days following the taking effect of the ordinance or resolution, heretofore or hereafter adopted, of the governing body of the county, as herein provided, then the governing body of the county shall appoint some suitable person to fill such office for a term of five years from the date of appointment and until the successor of such person is in the same manner appointed and shall have qualified. The governing body shall file notice of such appointment in the office of the Secretary of State.
Each superintendent so appointed in a county of the fifth class shall receive a salary of not less than $4,000 nor more than $8,000 per annum and each superintendent so appointed in a county of the second class shall receive a salary in such amount, not less than $4,000 per annum, as shall be determined by the governing body of the county; such salaries shall be paid by the county treasurer and the superintendent shall have his office in the county for which he is appointed.
Any vacancy occurring in such office of superintendent of elections shall be filled in the same manner as the original appointment to such office was made, but for the unexpired term. Any person filling a vacancy shall be from the same political party as the original appointee.
N.J.S. § 19:32-26