As similar modes of public service delivery on behalf of general-purpose governments, a relationship between special districts(SD) and nonprofit organization are empirically tested. Methods: Using U.S. data from the Census of Government Finance and the National Center for Charitable Statistics databases between 1997 and 2017, this study regress counts and spending level of SDs on the nonprofits' counterparts. Results: For both counts and spending level, there are positive association between SDs and nonprofit organizations. Conclusion: SDs and nonprofit organizations complement each other even when their service domains overlap.Nonprofit sector in the United States has steadily grown both in the numbers of organizations and financial size (NCCS Team 2020). From 2006 to 2016, the nonprofit numbers registered at the Internal Revenue Service (IRS) increased by 4.5 percent. In the same period, the nonprofits' revenue (24.2 percent) and asset values (30.7 percent) significantly rose, both of which exceeded the Gross Domestic Product(GDP) growth rate (13.6 percent). Nonprofits are increasingly seen as alternative providers of public services or as collaborators funded by government financial aid (Young 2000). However, empirical studies often show inconsistent findings, which may arise due to the diverse contexts of their analyses like examining the issue at different levels of government and measurements, impairing a consensus of validity for their arguments (Matsunaga and Yamauchi 2004).This study unravels government-nonprofit relations by distinguishing the role of special district (SD), the quasi-governmental unit that provides fewer services at the designated area with fiscal and administrative independence from cities and counties (or general-purpose governments). Regional governmental agencies across vast geographical areas with a single purpose are not considered as SDs, as they are authorized by federal legislation and/or administrative regulation (Bollens 1986;Foster 1997). SDs normally have governing boards and employees and provide services to the public, while some forms of SDs do not, such that instrumentally raise funds and issue bonds. Specialized services from the various districts resemble private goods (Burns 1994). This is due to their primary funding sources and eligibility for exclusive service provisions being based on a locational basis (Park 2021). Thus, SDs and nonprofits function similarly despite sector differences, as they are responsible for services that were never or are no longer provided by general-purpose governments (Foster 1997).However, it remains untested in the literature how SDs affect nonprofit proliferation. To explore the potential relationship between two organizations in different sectors, this study proposes two competing district-nonprofit relationships. Using U.S. data from the Census of Government Finance and the National Center for Charitable Statistics (NCCS) databases between 1997 and 2017, this study finds that greater size