As president, Carter created two new cabinet-level departments: the Department of Energy and the Department of Education. He established a national energy policy that included conservation, price control, and new technology. In foreign affairs, Carter pursued the Camp David Accords, the Panama Canal Treaties, the second round of Strategic Arms Limitation Talks (SALT II), and returned the Panama Canal Zone to Panama.

Throughout his career, Carter strongly emphasized human rights. He took office during a period of international stagflation, which persisted throughout his term. The final year of his presidential tenure was marked by the 1979 takeover of the American embassy in Iran and holding of hostages by Iranian students, an unsuccessful rescue attempt of the hostages, fuel shortages, and the Soviet invasion of Afghanistan.

By 1980, Carter's popularity had eroded. He survived a primary challenge against Ted Kennedy for the Democratic Party nomination in the 1980 election, but lost the election to Republican candidate Ronald Reagan. On January 20, 1981, minutes after Carter's term in office ended, the 52 U.S. captives held at the U.S. embassy in Iran were released, ending the 444-day Iran hostage crisis.

After leaving office, Carter and his wife Rosalynn founded the Carter Center in 1982, a nongovernmental, not-for-profit organization that works to advance human rights. He has traveled extensively to conduct peace negotiations, observe elections, and advance disease prevention and eradication in developing nations. Carter is a key figure in the Habitat for Humanity project, and also remains particularly vocal on the Israeli-Palestinian conflict.

James Earl Carter, Jr., was born on October 1, 1924, in the tiny southwest Georgia hamlet of Plains, near the larger town of Americus. The first president born in a hospital, he was the eldest of four children of James Earl Carter and Bessie Lillian Gordy. Carter's father was a prominent business owner in the community and his mother was a registered nurse.

The Carter family had come from southern England (Carter's paternal ancestor arrived in the American Colonies in 1635), and had lived in the state of Georgia for several generations. Carter's great-grandfather, Private L.B. Walker Carter (1832–1874), served in the Confederate States Army.

Jimmy Carter was a gifted student from an early age who always had a fondness for reading. By the time he attended Plains High School, he was also a star in basketball. He was greatly influenced by one of his high school teachers, Julia Coleman (1889–1973). While he was in high school he was in the Future Farmers of America, which later changed its name to the National FFA Organization, serving as the Plains FFA Chapter Secretary.

After high school, Carter enrolled at Georgia Southwestern College, in Americus. Later, he applied to the United States Naval Academy and, after taking additional mathematics courses at Georgia Tech, he was admitted in 1943. Carter graduated 59th out of 820 midshipmen.

Carter had three younger siblings: his brother, William Alton "Billy" Carter (1937–1988), and sisters Gloria Carter Spann (1926–1990) and Ruth Carter Stapleton (1929–1983). During Carter's Presidency, his brother Billy was often in the news, often in an unflattering light.

He married Rosalynn Smith in 1946. They had four children: John William "Jack" Carter (born 1947); James Earl "Chip" Carter III (born 1950); Donnel Jeffrey "Jeff" Carter, (born 1952) and Amy Lynn Carter (born 1967).