The Northern NSW State League Division 1 (known as the HIT Northern League One for sponsorship reasons) is a regional Australian semi-professional soccer league comprising teams from New South Wales. The league sits at Level 2 on the Northern New South Wales league system (Level 3 of the overall Australian league system). The competition is administered by Northern NSW Football, the governing body of the sport in the northern region of the state (the southern region governed by Football NSW). Prior to 2014, the league was formally known as the New FM 1st Division from 1998 to 2013 and the Northern NSW Football League Division Two from 1948 to 1997.

This article relies excessively on references to primary sources. (January 2024)

From the end of 2024 season, there will be promotion and relegation between Northern NSW State League Division 1 and Zone League One.

The competition consists of 9 teams, each of whom have a 1st-grade and Reserves. The regular season takes place over 20 rounds, with each team playing each other twice and each team get a bye round. The team that finishes first at the end of the 20 rounds is crowned Premiers.^[1]

The top 5 teams contest the Finals Series. The teams that progress meet in the grand final and the winner of that game is crowned the grand final winner.

The 2015 competition saw the introduction of 3 more teams into Northern NSW State League Division 1: Cooks Hill United FC, Kahibah FC and Wallsend FC.^[2]

2017 saw the promotion of New Lambton FC.

At the conclusion of the 2021 season, Cooks Hill United were promoted to NPL Northern NSW.

At the conclusion of the 2022 season, New Lambton FC were promoted to NPL Northern NSW.

Northern Inland (Youth)