This study analyzed the plausibility of merging school districts in New York State. The study considered how consolidation impacts finance, instruction, demographics, and enrollment for 56 public schools in Nassau County of the Long Island region of New York State. It also draws comparisons for county-, township-, and regionally-based school districts. Schools across New York are exploring all cost-cutting options for efficient and effective ways to maintain comprehensive programs and high achievement, and this is particularly unique on Long Island where expenses are the highest. A dearth of research and data informs educational leaders and policymakers on the plausibility of consolidation. The purpose of this research study is to analyze and validate the efficacy of township-based or regional school systems for Nassau County. The study focused on four key components of school district organizations including: finance, instruction, enrollment, and demographics. The data was applied, analyzed, and presented based on the framework of the "Five Cs Model" (Hughes, 2010). Descriptive, comparative, and summative data components were used to explain data findings. The researcher applied the processes of the Creighton Model (Creighton, 1994) and strategic foresight to develop a future model to reorganize 56 of Long Island's school districts. The results of this study reveal specific implications and sustainability of current school district organizational structures across Nassau County. Financial indicators suggest greater efficiency and balance for revenue versus expenditures. The study also offers varied tax levy and tax per pupil rates. Additionally, greater efficiency impact from governance and administrative costs, shared resources, and economies of scale savings are indicated. Instructional indicators reveal the ability to offer broader access to highly effective teaching and programming choices. The study also shows how demographic indicators offer the plausibility of a varied demographic picture under mergers. Consolidation also reduces the challenges associated with specific student populations. Enrollment indicators illustrate a stable or minimized impact on declining enrollment numbers as a county structure for education. Finally, the plausibility of a regional merger for school district reorganization is high and can be planned or framed around different priorities. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]