Butha-Buthe's 2026 population is now estimated at 63,921. In 1986, the population of Butha-Buthe was 7,509. Butha-Buthe has grown by 3,118 in the last year, which represents a 5.13% annual change. These population values and projections come from Lesotho city census rows via CityPopulation fallback access and World Population Review Internal Projections .