Essex County League was an independent league that was based in New Jersey.
1909 Belleville, Bloomfield, Irvington, Newark, Newark-Forest Hill, Newark-Vailsburg, Maplewood, Orange
1910 East Orange, Irvington-East Irvington and Newark-South Newark entered the league; Bloomfield, Maplewood, and Vailsburg left the league.
1914 East Newark, Harrison, Irvington, Newark, Newark-Roseville, Newark-Vailsburg.
1933 Belleville, Caldwell, Glen Ridge, Irvington, Montclair, Nutley, Orange, Verona.
1934 Bloomfield has enter the League and Irvington has left the league
1936 Belleville, Bloomfield, Caldwell, Glen Ridge, Montcalir, Nutley Orange, Verona.