[5][6][7] Throughout the first half of the twentieth century, Morehouse County was a stronghold of the Ku Klux Klan.

[8] During the trial for the 1922 Lynchings of Mer Rouge, Louisiana, many witnesses testified that county officials including Sheriff Fred Carpenter, his deputies, the district attorney, and the postmaster were Klan members.

However, the grand jury, itself likely made up largely of Klan members, dismissed the case.

As of the 2020 United States census, there were 25,629 people, 9,732 households, and 6,194 families residing in the parish.

It falls under the authority of the Sheriff, who is the chief law enforcement officer of the parish.

[19] In 1975, Edwards Barham, a farmer and businessman from Oak Ridge in Morehouse Parish, became the first Republican elected to the Louisiana State Senate since the era of Reconstruction.

[20] He was unseated after a single term in office in 1979 by the Democrat David 'Bo' Ginn of Bastrop.

In the 2012 U.S. presidential election, Morehouse Parish cast 6,591 votes (52.3 percent) for Republican nominee Mitt Romney.