Karnal's 2025 population is now estimated at 458,934. In 1950, the population of Karnal was 57,956. Karnal has grown by 11,193 in the last year, which represents a 2.5% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Karnal, which typically includes Karnal's population in addition to adjacent suburban areas.