Harper's 2026 population is now estimated at 35,810. In 1974, the population of Harper was 10,627. Harper has grown by 827 in the last year, which represents a 2.36% annual change. These population values and projections come from Liberia city census rows via CityPopulation fallback access and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Monrovia | 2,396,360 | 4.85% |
| Gbarnga | 140,163 | 5.13% |
| Ganta | 103,493 | 5.13% |
| Buchanan | 74,298 | 2.2% |
| Kakata | 66,802 | 3.72% |
| Zwedru | 53,910 | 4.28% |
| Pleebo | 47,006 | 3.94% |
| Harbel | 38,524 | 2.36% |
| Harper | 35,810 | 2.36% |
| Voinjama | 24,309 | 2.62% |
| Greenville | 17,033 | 1.36% |
| Sanniquellie | 16,046 | 1.69% |
| Tubmanburg | 14,841 | 0.1% |
| Zorzor | 6,070 | 0.46% |
| Robertsport | 4,155 | 0.92% |
| Cesstos City | 2,597 | 0.46% |
