The Salt & Light congregation of Longmont, Colorado, began meeting in May, 1999 as an outreach ministry of the Westminster Reformed Presbyterian Church.

In June, 2003, the Salt & Light Reformed Presbyterian Church congregation in Longmont was organized as a mission church of the Reformed Presbyterian Church of North America (RPCNA).

In November, 2003, the Lord provided a permanent meeting place at 9498 Anhawa Avenue, Longmont. Full organization as a particular congregation took place on December 2, 2003.