Lop Buri's 2025 population is now estimated at 524,118. In 1950, the population of Lop Buri was 19,475. Lop Buri has grown by 13,021 in the last year, which represents a 2.55% 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 Lop Buri, which typically includes Lop Buri's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Bangkok | 11,391,700 | 1.4% |
| Chon Buri | 1,491,180 | 1.25% |
| Samut Prakan | 1,393,410 | 1.25% |
| Chiang Mai | 1,244,190 | 1.25% |
| Songkhla | 1,030,550 | 1.25% |
| Nonthaburi | 1,026,390 | 1.25% |
| Pathum Thani | 974,195 | 1.25% |
| Nakhon Ratchasima | 821,187 | 1.2% |
| Samut Sakhon | 616,533 | 1.25% |
| Udon Thani | 604,163 | 1.19% |
| Chiang Rai | 586,352 | 1.25% |
| Rayong | 573,756 | 1.25% |
| Nakhon Pathom | 567,386 | 1.87% |
| Kalasin | 551,882 | 1.25% |
| Khon-Kaen | 535,847 | 1.25% |
| Surat Thani | 528,783 | 1.25% |
| Ubon Ratchathani | 527,549 | 1.24% |
| Lop Buri | 524,118 | 2.55% |
| Buri Ram | 483,767 | 1.25% |
| Lampang | 479,219 | 1.25% |
