Association of Christian Schools International

== History ==
ACSI was founded in 1978 through the merger of three associations: The National Christian School Education Association, The Ohio Association of Christian Schools, and the Western Association of Christian Schools.<ref>George Thomas Kurian, Mark A. Lamport, ''Encyclopedia of Christian Education, Volume 3'', Rowman & Littlefield, USA, 2015, p. 819</ref> Various international schools have joined the network.<ref>Randall Herbert Balmer, ''Encyclopedia of Evangelicalism: Revised and expanded edition'', Baylor University Press, USA, 2004, p. 40</ref>

Initially headquartered in [[La Habra, California]], the growing organization moved its main offices to [[Colorado Springs, Colorado]] in 1994 to support expanded operations and international outreach.<ref name="About Us - ACSI Nigeria">{{cite web|title=About Us - ACSI Nigeria|url=https://acsinigeria.org/about-us/|archive-url=https://web.archive.org/web/20250714161458/https://acsinigeria.org/about-us/|archive-date=July 14, 2025|access-date=December 26, 2025}}</ref> Later that year, ACSI's primary school and secondary school programs became officially recognized by the [[National Council for Private School Accreditation]] (NCPSA).<ref>{{cite news |first=Laura |last=Miller |title=Private School Accrediting Group Names Members |url=http://www.edweek.org/ew/articles/1994/10/05/05accred.h14.html |work=[[Education Week]] |date=1994-10-05 |access-date=2008-07-25}}</ref>

By 2025, it will have 25,000 schools in 108 countries.<ref>ACSI, [https://www.acsi.org/about About], acsi.org, USA, retrieved December 25, 2025</ref>