Most densely populated municipalities

The 20 municipalities in Kochi Ken with the highest people per km², and the 20 with the lowest, out of 38 with a published figure.

	Municipality	Prefecture	Postal code	People per km²
1	Kawaguchi	Kochi Ken	781-1502	9,586.8 /km²
2	Kita-ku	Kochi Ken	781-1754	8,723.0 /km²
3	Nakamura-ku	Kochi Ken	781-1516	8,263.7 /km²
4	Nada-ku	Kochi Ken	789-1905	4,172.1 /km²
5	Izumi	Kochi Ken	781-1914	2,168.7 /km²
6	Kuki	Kochi Ken	781-1531	1,822.6 /km²
7	Sakura	Kochi Ken	781-1505	1,630.4 /km²
8	Moriyama	Kochi Ken	781-1755	1,499.2 /km²
9	Takaoka	Kochi Ken	786-0027	791.5 /km²
10	Saga	Kochi Ken	789-1795	654.3 /km²
11	Kōnan-ku	Kochi Ken	781-5452	629.4 /km²
12	Naka	Kochi Ken	781-1763	542.2 /km²
13	Nankoku	Kochi Ken	783-0055	371.6 /km²
14	Nagaoka	Kochi Ken	789-0231	298.4 /km²
15	Tosa	Kochi Ken	781-3336	280.5 /km²
16	Ōita Prefecture	Kochi Ken	781-1514	176.9 /km²
17	Ōsaki-shi	Kochi Ken	781-1501	159.6 /km²
18	Susaki	Kochi Ken	785-0043	150.8 /km²
19	Mori	Kochi Ken	781-1892	129.4 /km²
20	Shirahama	Kochi Ken	789-1725	99.4 /km²

Most sparsely populated municipalities

	Municipality	Prefecture	Postal code	People per km²
1	Kitagawa	Kochi Ken	781-1746	5.8 /km²
2	Niyodogawa	Kochi Ken	781-1500	13.9 /km²
3	Mihara	Kochi Ken	787-0800	16.2 /km²
4	Ōno-shi	Kochi Ken	781-1617	34.9 /km²
5	Tosashimizu	Kochi Ken	787-0326	44.8 /km²
6	Ochi	Kochi Ken	781-2126	45.7 /km²
7	Muroto	Kochi Ken	781-7103	46.5 /km²
8	Hirono	Kochi Ken	787-0814	48.7 /km²
9	Kami	Kochi Ken	782-0003	49.0 /km²
10	Aki	Kochi Ken	781-7303	50.7 /km²
11	Shimanto	Kochi Ken	787-0771	51.5 /km²
12	Suzu	Kochi Ken	789-1708	52.1 /km²
13	Kuroshio	Kochi Ken	789-1900	53.4 /km²
14	Sukumo	Kochi Ken	788-0042	66.8 /km²
15	Tamura	Kochi Ken	781-1522	76.2 /km²
16	Ōtsuki-shi	Kochi Ken	788-0300	79.8 /km²
17	Ohira	Kochi Ken	781-1601	95.1 /km²
18	Kōchi Prefecture	Kochi Ken	780-8536	97.0 /km²
19	Shirahama	Kochi Ken	789-1725	99.4 /km²
20	Mori	Kochi Ken	781-1892	129.4 /km²

Most densely 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.