| Name | Population | Latitude/Longitude |
| 1 | Nouakchott , |
1,184,530 |
18.086 / -15.978 |
| 2 | Nouadhibou , Dakhlet Nouadhibou |
146,048 |
20.942 / -17.038 |
| 3 | Kiffa , Assaba |
62,051 |
16.621 / -11.402 |
| 4 | Dar Naim , Nouakchott Nord |
61,089 |
18.108 / -15.927 |
| 5 | Néma , Hodh Ech Chargi |
60,000 |
16.617 / -7.256 |
| 6 | Mbera, Hodh Ech Chargi |
58,985 |
15.856 / -5.791 |
| 7 | Kaédi , Gorgol |
56,283 |
16.151 / -13.506 |
| 8 | Zouérat , Tiris Zemmour |
55,183 |
22.735 / -12.471 |
| 9 | Tevragh Zeina, Nouakchott Ouest |
48,093 |
18.099 / -15.988 |
| 10 | Sélibaby , Guidimaka |
32,653 |
15.158 / -12.184 |
| 11 | Atar , Adrar |
31,133 |
20.519 / -13.046 |
| 12 | Ayoun El Atrous , Hodh El Gharbi |
28,174 |
16.661 / -9.615 |