The Marshallese are of Micronesian origin, which is traced to a combination of peoples who emigrated from Southeast Asia in the remote past. The matrilineal Marshallese culture revolves around a complex system of clans and lineages tied to land ownership.

Virtually all Marshallese are Christian, most of them Protestant. Other Christian denominations include Roman Catholic, Seventh-day Adventist, Mormon, Salvation Army, and Jehovah's Witness. A small Bahai community also exists.

Marshallese is the official language. English is spoken by most of the adult urban population. However, both the Nitijela (parliament) and national radio use Marshallese.

The public school system provides education through grade 12, although admission to secondary school is selective. The elementary program employs a bilingual/bicultural curriculum. English is introduced in the fourth grade. Many Marshallese and American observers have lamented the poor state of the public education system as a major stumbling block to economic development. The Marshall Islandsí largest secondary institution--the 2-year College of the Marshall Islands--has experienced U.S. accreditation problems since 2003. The University of the South Pacific offers courses at a small campus on Majuro.