| Rank | Coordinates | City / town | Department | Population
(2007 census) |
|---|
| 1 | 4°16′4″S 15°17′31″E / 4.26778°S 15.29194°E / -4.26778; 15.29194 (Brazzaville) | Brazzaville | Brazzaville | 7006137338200000000♠1,373,382 |
| 2 | 04°46′43″S 11°51′49″E / 4.77861°S 11.86361°E / -4.77861; 11.86361 (Pointe-Noire) | Pointe-Noire | Pointe-Noire | 7005715334000000000♠715,334 |
| 3 | 4°11′59″S 12°40′26″E / 4.19972°S 12.67389°E / -4.19972; 12.67389 (Pointe-Dolisie) | Dolisie | Niari | 7004837980000000000♠83,798 |
| 4 | 4°9′56″S 13°17′34″E / 4.16556°S 13.29278°E / -4.16556; 13.29278 (Nkayi, Republic of the Congo) | Nkayi | Bouenza | 7004716200000000000♠71,620 |
| 5 | 3°43′39″S 14°31′16″E / 3.72750°S 14.52111°E / -3.72750; 14.52111 (Kindamba) | Kindamba | Pool | 7004598800000000000♠59,880 |
| 6 | 1°38′17″N 18°04′00″E / 1.63806°N 18.06667°E / 1.63806; 18.06667 (Impfondo) | Impfondo | Likouala | 7004339110000000000♠33,911 |
| 7 | 1°36′49″N 16°03′06″E / 1.61361°N 16.05167°E / 1.61361; 16.05167 (Ouésso) | Ouésso | Sangha | 7004281790000000000♠28,179 |
| 8 | 04°09′13″S 13°33′00″E / 4.15361°S 13.55000°E / -4.15361; 13.55000 (Madingou, Bouenza) | Madingou | Bouenza | 7004257130000000000♠25,713 |
| 9 | 0°29′S 15°54′E / 0.483°S 15.900°E / -0.483; 15.900 (Owando) | Owando | Cuvette | 7004247360000000000♠24,736 |
| 10 | 3°41′9″S 13°20′45″E / 3.68583°S 13.34583°E / -3.68583; 13.34583 (Sibiti) | Sibiti | Lékoumou | 7004229510000000000♠22,951 |
| 11 | 4°17′46″S 13°51′03″E / 4.29611°S 13.85083°E / -4.29611; 13.85083 (Loutété) | Loutété | Bouenza | 7004192120000000000♠19,212 |
| 12 | 4°13′7″S 13°45′42″E / 4.21861°S 13.76167°E / -4.21861; 13.76167 (Bouansa) | Bouansa | Bouenza | 7004190640000000000♠19,064 |
| 13 | 2°4′38″S 14°41′9″E / 2.07722°S 14.68583°E / -2.07722; 14.68583 (Gamboma) | Gamboma | Plateaux | 7004185140000000000♠18,514 |
| 14 | 1°13′35″S 16°46′58″E / 1.22639°S 16.78278°E / -1.22639; 16.78278 (Mossaka District) | Mossaka | Cuvette | 7004151120000000000♠15,112 |
| 15 | 04°16′06″S 14°23′02″E / 4.26833°S 14.38389°E / -4.26833; 14.38389 (Mindouli) | Mindouli | Pool | 7004145410000000000♠14,541 |
| 16 | 1°9′54″S 15°58′12″E / 1.16500°S 15.97000°E / -1.16500; 15.97000 (Oyo, Republic of the Congo) | Oyo | Cuvette | 7004142950000000000♠14,295 |
| 17 | 0°00′N 15°38′E / 0.000°N 15.633°E / 0.000; 15.633 (Makoua) | Makoua | Cuvette | 7004142400000000000♠14,240 |
| 18 | 4°09′40″S 13°02′53″E / 4.161°S 13.048°E / -4.161; 13.048 (Loudima) | Loudima | Bouenza | 7004141300000000000♠14,130 |
| 19 | 2°57′02″S 12°43′34″E / 2.95056°S 12.72611°E / -2.95056; 12.72611 (Mossendjo) | Mossendjo | Niari | 7004132380000000000♠13,238 |
| 20 | 3°59′S 13°55′E / 3.983°S 13.917°E / -3.983; 13.917 (Mouyondzi) | Mouyondzi | Bouenza | 7004126950000000000♠12,695 |
| 21 | 3°05′N 18°32′E / 3.083°N 18.533°E / 3.083; 18.533 (Bétou) | Bétou | Likouala | 7004112400000000000♠11,240 |
| 22 | 2°32′41″S 14°45′12″E / 2.54472°S 14.75333°E / -2.54472; 14.75333 (Djambala) | Djambala | Plateaux | 7004106520000000000♠10,652 |
| 23 | | Pokola | Sangha | 7004104650000000000♠10,465 |
| 24 | | Ngo | Plateaux | 7004101210000000000♠10,121 |
| 25 | 04°08′34″S 12°54′49″E / 4.14278°S 12.91361°E / -4.14278; 12.91361 (Makabana) | Makabana | Niari | 7003928600000000000♠9,286 |
| 26 | 4°21′41″S 14°45′52″E / 4.36139°S 14.76444°E / -4.36139; 14.76444 (Kinkala) | Kinkala | Pool | 7003860000000000000♠8,600 |
| 27 | 0°52′S 14°49′E / 0.867°S 14.817°E / -0.867; 14.817 (Ewo) | Ewo | Cuvette-Ouest | 7003814200000000000♠8,142 |
| 28 | 0°01′N 14°54′E / 0.017°N 14.900°E / 0.017; 14.900 (Etoumbi) | Etoumbi | Cuvette-Ouest | 7003771900000000000♠7,719 |
| 29 | 1°1′39″S 15°21′33″E / 1.02750°S 15.35917°E / -1.02750; 15.35917 (Boundji) | Boundji | Cuvette | 7003708500000000000♠7,085 |
| 30 | 2°3′N 18°3′E / 2.050°N 18.050°E / 2.050; 18.050 (Dongou) | Dongou | Likouala | 7003706000000000000♠7,060 |
| 31 | | Komono | Lekoumou | 7003635400000000000♠6,354 |
| 32 | 0°04′S 14°30′E / 0.067°S 14.500°E / -0.067; 14.500 (Kellé) | Kellé | Cuvette-Ouest | 7003629800000000000♠6,298 |
| 33 | 2°48′47″N 18°00′47″E / 2.813°N 18.013°E / 2.813; 18.013 (Enyellé) | Enyellé | Likouala | 7003602700000000000♠6,027 |
| 34 | | Tchamba-Nzassi | Kouilou | 7003596200000000000♠5,962 |
| 35 | | Ollombo | Plateaux | 7003542000000000000♠5,420 |
| 36 | 1°5′48″S 16°57′55″E / 1.09667°S 16.96528°E / -1.09667; 16.96528 (Loukoléla) | Loukoléla | Cuvette | 7003526800000000000♠5,268 |
| 37 | 1°38′53″S 14°34′50″E / 1.64806°S 14.58056°E / -1.64806; 14.58056 (Sembé) | Sembé | | 7003495700000000000♠4,957 |
| 38 | 2°06′S 12°52′E / 2.100°S 12.867°E / -2.100; 12.867 (Mbinda) | Mbinda | | 7003439000000000000♠4,390 |
| 39 | 2°51′S 13°50′E / 2.850°S 13.833°E / -2.850; 13.833 (Zanaga) | Zanaga | | 7003411700000000000♠4,117 |
| 40 | 2°19′31″S 14°36′0″E / 2.32528°S 14.60000°E / -2.32528; 14.60000 (Lekana) | Lekana | | 7003403900000000000♠4,039 |
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