Arr's 2026 population is now estimated at 4,388. In 2000, the population of Arr was 2,922. Arr has grown by 78 in the last year, which represents a 1.81% annual change. These population values and projections come from Mauritania localities census rows 2000 via CityPopulation official attribution, Mauritania localities census rows 2013 and 2023 via CityPopulation official attribution and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Nouakchott | 1,637,012 | 4.2% |
| Nouadhibou | 194,725 | 3.92% |
| Kiffa | 79,794 | 3.63% |
| Zouerate | 68,964 | 3.4% |
| Kaedi | 61,897 | 2.39% |
| Selibabi | 46,738 | 4.49% |
| Rosso | 45,821 | 2.42% |
| Guerou | 40,510 | 4.69% |
| Nema | 40,000 | 4.81% |
| Aioun | 39,563 | 4.33% |
| Camp de Refugies de Mbera | 39,492 | -1.45% |
| Tintane | 37,549 | 5.13% |
| Atar | 37,224 | 3.05% |
| Timbedra | 34,720 | 5.13% |
| Magta-Lahjar | 23,619 | 5.02% |
| Boutilimit | 23,405 | 3.06% |
| Bassikounou | 22,628 | 5.13% |
| Adel Bagrou | 21,260 | 5.12% |
| Boghe | 20,100 | 1.57% |
| Tidjikdja | 19,543 | 4.59% |
| Lexeiba | 19,450 | 5.12% |
| Akjoujt | 18,769 | 2.97% |
| Aleg | 17,718 | 1.02% |
| Maghama | 16,778 | 3.13% |
| El Ghayra | 14,777 | 5.12% |
| Kobenni | 14,305 | 5.13% |
| Djiguenni | 13,718 | 5.13% |
| Fassale | 13,121 | 5.13% |
| Bouhdida | 12,657 | 4.98% |
| RKiz | 12,038 | 5.13% |
| Tiguent | 11,848 | 5.12% |
| Kankossa | 10,975 | 4.03% |
| MBout | 10,605 | 5.12% |
| Bousteille | 10,063 | 3.95% |
| Nbeika | 9,371 | 5.13% |
| Wali Djantang | 9,141 | 2.97% |
| Sagne | 8,745 | 1.92% |
| Ould Yenge | 8,323 | 5.13% |
| Amourj | 8,194 | 4.8% |
| Aoueinat Ezbel | 8,115 | 5.12% |
| Ouad Naga | 8,035 | 5.13% |
| Lembeidi Assagha | 7,963 | 3.93% |
| Cheggar | 7,863 | 3.8% |
| Sangrave | 7,673 | 3.7% |
| Ghabou | 7,658 | 2.16% |
| Bababe | 7,632 | 0.47% |
| Hassi Cheggar | 7,457 | 2.19% |
| Aghoratt | 7,188 | 5.12% |
| Kamour | 7,187 | 4.66% |
| Dafort | 7,176 | 0.83% |
| Tachott Botokholo | 6,951 | 2.95% |
| Diaguily | 6,798 | 2.27% |
| Djewol | 6,396 | 0.31% |
| Maata Moulana | 6,282 | 5.12% |
| Boully | 5,970 | 1.6% |
| Mederdra | 5,892 | 2.59% |
| Fam Lekhedheiratt | 5,870 | 5.14% |
| Agouanitt | 5,861 | 1.44% |
| Aghor | 5,848 | 5.14% |
| Modibougou | 5,759 | 4.58% |
| Diogountourou | 5,671 | 0.93% |
| Foum Gleita | 5,609 | 5.12% |
| Doueirare | 5,534 | 3.13% |
| Acheram | 5,371 | 1.74% |
| Chinguetti | 5,368 | 3.99% |
| Tamchekett | 5,332 | 5.13% |
| Aoujeft | 5,062 | 5.13% |
| Debay MBout | 4,895 | 2.51% |
| Touil | 4,743 | 3.18% |
| Niabina | 4,737 | 2.62% |
| Mal | 4,693 | 5.13% |
| Bouanze | 4,668 | -1.44% |
| Belgherbane | 4,503 | 3.47% |
| Sinthiane Padalal | 4,477 | 3.44% |
| Arr | 4,388 | 1.81% |
| Chami | 4,356 | 5.14% |
| Toulel | 4,329 | 1.45% |
| Barkewol | 4,226 | 2.85% |
| Elmelga | 4,222 | 5.13% |
| Wompou | 4,099 | 3.15% |
| Bagodine | 3,912 | 0.38% |
| Tachott Brana | 3,811 | 0.66% |
| MBagne | 3,761 | 1.16% |
| Arafatt | 3,737 | 2.55% |
| Baydam | 3,681 | 1.6% |
| Koumba Ndaw | 3,677 | 0.96% |
| Mbera | 3,669 | 5.13% |
| Saboussire | 3,472 | -0.09% |
| Fondou | 3,273 | -0.94% |
| FDerick | 3,240 | -0.12% |
| Birmoguren | 3,224 | 5.12% |
| Moudjeria | 2,972 | 5.13% |
| Boumdeid | 2,809 | 5.13% |
| Oualata | 2,469 | 5.15% |
| Monguel | 2,349 | 1.42% |
| Keurmacen | 2,189 | 0.51% |
| Tichitt | 2,139 | 4.04% |
| Ouadane | 1,943 | 2.32% |
| NBeikett Lehouach | 1,600 | 0% |