Tacna's 2025 population is now estimated at 347,494. In 1950, the population of Tacna was 17,059. Tacna has grown by 5,030 in the last year, which represents a 1.47% 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 Tacna, which typically includes Tacna's population in addition to adjacent suburban areas.
| City | 2025 Pop. ↓ | Growth |
|---|---|---|
| Lima | 11,517,300 | |
| Arequipa | 983,715 | |
| Trujillo | 929,188 | |
| Callao | 813,264 | |
| Chiclayo | 678,933 | |
| Cusco | 512,636 | |
| Piura | 508,957 | |
| Iquitos | 504,609 | |
| Chimbote | 410,593 | |
| Huancayo | 410,265 | |
| Pucallpa | 310,750 | |
| Santiago de Surco | 251,648 | |
| Ica | 246,844 | |
| Juliaca | 245,675 | |
| Sullana | 160,789 | |
| Chincha Alta | 153,076 | |
| Huanuco | 147,959 | |
| Ayacucho | 140,033 | |
| Cajamarca | 135,000 | |
| Puno | 116,552 | |
| Tumbes | 109,223 | |
| Talara | 99,074 | |
| Chosica | 88,606 | |
| Huaraz | 86,934 | |
| Cerro de Pasco | 78,910 | |
| Chulucanas | 68,835 | |
| San Isidro | 68,309 | |
| Huaral | 62,174 | |
| Pisco | 61,869 | |
| Catacaos | 57,304 | |
| Paita | 56,151 | |
| Abancay | 55,111 | |
| Huacho | 54,545 | |
| Moquegua | 54,517 | |
| Ilo | 53,476 | |
| Tingo Maria | 53,177 | |
| Jaen | 52,493 | |
| Tarma | 51,350 | |
| Barranca | 46,290 | |
| Moyobamba | 44,276 | |
| Lambayeque | 43,710 | |
| Picsi | 43,610 | |
| Chepen | 41,992 | |
| Yurimaguas | 41,827 | |
| Huancavelica | 41,576 | |
| Sana | 39,200 | |
| Tambopata | 38,966 | |
| Juanjui | 37,715 | |
| Puerto Maldonado | 37,543 | |
| La Union | 34,834 | |
| Ferrenafe | 34,357 | |
| Sicuani | 33,575 | |
| La Oroya | 33,345 | |
| Chocope | 32,370 | |
| Nuevo Imperial | 32,344 | |
| Imperial | 32,344 | |
| Tambo Grande | 30,033 | |
| La Rinconada | 29,678 | |
| Pacasmayo | 29,165 | |
| Tocache | 29,029 | |
| Mollendo | 28,953 | |
| Chaupimarca | 28,666 | |
| Paramonga | 27,631 | |
| La Peca | 27,045 | |
| Chancay | 26,958 | |
| Hualmay | 26,658 | |
| Monsefu | 25,707 | |
| Marcavelica | 25,645 | |
| San Vicente de Canete | 25,517 | |
| Querecotillo | 25,396 | |
| Guadalupe | 25,376 | |
| Santa Ana | 25,145 | |
| Rioja | 25,057 | |
| Laredo | 24,691 | |
| Nazca | 23,556 | |
| Yanacancha | 23,175 | |
| Sechura | 23,020 | |
| Moche | 22,581 | |
| Santiago de Cao | 21,982 | |
| Huamachuco | 21,768 | |
| Paijan | 21,128 | |
| Jauja | 21,057 | |
| Viru | 20,774 | |
| Huaura | 20,723 | |
| Bagua Grande | 20,382 | |
| Chachapoyas | 20,279 | |
| Ayaviri | 19,310 | |
| Huanta | 18,627 | |
| Uchiza | 17,742 | |
| La Breita | 17,693 | |
| Andahuaylas | 17,444 | |
| Mala | 17,260 | |
| Zarumilla | 16,907 | |
| Camana | 16,434 | |
| San Pedro de Lloc | 16,250 | |
| Huarmey | 16,172 | |
| Yunguyo | 16,140 | |
| Chongoyape | 16,061 | |
| Ilave | 16,033 | |
| San Clemente | 15,815 | |
| Pimentel | 15,552 | |
| Satipo | 15,532 | |
| Minas de Marcona | 15,478 | |
| Junin | 15,320 | |
| Bellavista | 15,231 | |
| Coishco | 15,083 | |
| Chicama | 14,915 | |
| Saposoa | 14,894 | |
| Santa Maria | 14,853 | |
| Tabalosos | 14,744 | |
| San Ramon | 14,708 | |
| Celendin | 14,660 | |
| Chota | 14,240 | |
| Salinera Colan | 14,210 | |
| Puerto Santa | 14,066 | |
| Ascope | 14,015 | |
| Contamana | 13,885 | |
| Supe | 13,719 | |
| Lamas | 13,693 | |
| Eten | 13,693 | |
| Motupe | 13,681 | |
| Pativilca | 13,583 | |
| Cajabamba | 13,486 | |
| Bambamarca | 13,351 | |
| Azangaro | 13,290 | |
| Vice | 12,915 | |
| Chilca | 12,884 | |
| Atuncolla | 12,654 | |
| Pueblo Nuevo | 12,471 | |
| Morropon | 12,307 | |
| Zorritos | 12,261 | |
| Oxapampa | 12,000 | |
| Puerto Supe | 11,450 | |
| Concepcion | 11,330 | |
| Villa Tupac Amaru | 11,159 | |
| Caras | 10,926 | |
| Soritor | 10,858 | |
| Santa Rosa | 10,625 | |
| Puquio | 10,491 | |
| Santiago | 10,449 | |
| Otuzco | 10,134 | |
| Salaverry | 10,066 |