According to a 1995 population study, there were 76,000 Jewish households in Nassau County and 37,000 in Suffolk, the two political divisions of Long Island. The Jewish polity in both counties is organized in two umbrella organizations: the Conference of Jewish Organizations of Nassau County (COJONC) and the Suffolk Jewish Communal Planning Council (SJCPC). This article discusses the membership of COJONC and SJCPC, their goals, and their activities. The detailed structures of both organizations are outlined in the appendices. UJA-Federation has thus far financially supported COJONC and SJCPC. Future success of these organizations in particular, and of Jewish continuity on Long Island in general, hinges not only on the continuation of this support, but also on attracting a new generation of Jews to its leadership cadre, primarily through innovative educational efforts and programs.