Qacha's Nek's 2026 population is now estimated at 30,142. In 1986, the population of Qacha's Nek was 4,589. Qacha's Nek has grown by 1,470 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 .