Most populated municipalities

The 20 municipalities in Kochi Ken with the most residents, and the 20 with the fewest, out of 38 with a published figure.

	Municipality	Prefecture	Postal code	Residents
1	Ōita Prefecture	Kochi Ken	781-1514	1,121,589
2	Kōchi Prefecture	Kochi Ken	780-8536	688,870
3	Kawaguchi	Kochi Ken	781-1502	593,900
4	Nagaoka	Kochi Ken	789-0231	265,868
5	Saga	Kochi Ken	789-1795	232,359
6	Izumi	Kochi Ken	781-1914	184,299
7	Sakura	Kochi Ken	781-1505	169,059
8	Takaoka	Kochi Ken	786-0027	165,880
9	Kuki	Kochi Ken	781-1531	150,197
10	Kita-ku	Kochi Ken	781-1754	147,070
11	Nada-ku	Kochi Ken	789-1905	136,262
12	Nakamura-ku	Kochi Ken	781-1516	134,698
13	Ōsaki-shi	Kochi Ken	781-1501	127,135
14	Moriyama	Kochi Ken	781-1755	83,567
15	Kōnan-ku	Kochi Ken	781-5452	67,927
16	Naka	Kochi Ken	781-1763	53,035
17	Nankoku	Kochi Ken	783-0055	46,567
18	Tamura	Kochi Ken	781-1522	34,921
19	Shimanto	Kochi Ken	787-0771	32,551
20	Ōno-shi	Kochi Ken	781-1617	30,449

Least populated municipalities

	Municipality	Prefecture	Postal code	Residents
1	Kitagawa	Kochi Ken	781-1746	1,138
2	Mihara	Kochi Ken	787-0800	1,387
3	Niyodogawa	Kochi Ken	781-1500	4,639
4	Ochi	Kochi Ken	781-2126	5,111
5	Ohira	Kochi Ken	781-1601	5,739
6	Kuroshio	Kochi Ken	789-1900	10,073
7	Muroto	Kochi Ken	781-7103	11,543
8	Tosashimizu	Kochi Ken	787-0326	11,925
9	Suzu	Kochi Ken	789-1708	12,879
10	Hirono	Kochi Ken	787-0814	14,757
11	Aki	Kochi Ken	781-7303	16,090
12	Mori	Kochi Ken	781-1892	17,333
13	Sukumo	Kochi Ken	788-0042	19,124
14	Shirahama	Kochi Ken	789-1725	19,976
15	Susaki	Kochi Ken	785-0043	20,424
16	Ōtsuki-shi	Kochi Ken	788-0300	22,356
17	Tosa	Kochi Ken	781-3336	25,665
18	Kami	Kochi Ken	782-0003	26,376
19	Ōno-shi	Kochi Ken	781-1617	30,449
20	Shimanto	Kochi Ken	787-0771	32,551

Most populated municipalities — All of Japan

One row per municipalities. The figures are published by municipality, so every postal code inside one shares them; the postal code shown is one of that municipality's.