Most densely populated municipalities

The 20 municipalities in Tokyo To with the highest people per km², and the 20 with the lowest, out of 62 with a published figure.

	Municipality	Prefecture	Postal code	People per km²
1	Toshima	Tokyo To	170-8426	22,901.9 /km²
2	Nakano	Tokyo To	164-8611	21,873.9 /km²
3	Arakawa	Tokyo To	116-8543	21,446.0 /km²
4	Bunkyō-ku	Tokyo To	113-0023	21,263.9 /km²
5	Taitō-ku	Tokyo To	110-8716	20,973.1 /km²
6	Sumida	Tokyo To	130-8585	19,667.6 /km²
7	Meguro	Tokyo To	153-8523	19,557.3 /km²
8	Shinjuku	Tokyo To	163-0575	19,175.9 /km²
9	Shinagawa	Tokyo To	141-6023	18,201.8 /km²
10	Itabashi	Tokyo To	174-0053	18,042.7 /km²
11	Suginami	Tokyo To	167-8510	17,134.7 /km²
12	Chūō	Tokyo To	104-6020	16,569.9 /km²
13	Setagaya	Tokyo To	157-0071	16,201.7 /km²
14	Shibuya	Tokyo To	150-8482	15,565.4 /km²
15	Nerima	Tokyo To	177-0042	15,442.2 /km²
16	Edogawa	Tokyo To	133-0062	13,986.6 /km²
17	Musashino	Tokyo To	180-8522	13,567.5 /km²
18	Komae	Tokyo To	201-0014	13,213.9 /km²
19	Nishitōkyō-shi	Tokyo To	202-0002	13,170.5 /km²
20	Katsushika	Tokyo To	124-8588	12,982.0 /km²

Most sparsely populated municipalities

	Municipality	Prefecture	Postal code	People per km²
1	Hinohara	Tokyo To	190-0200	18.5 /km²
2	Ogasawara Village	Tokyo To	100-2101	29.0 /km²
3	Ōshima-machi	Tokyo To	100-0103	78.2 /km²
4	Niijima	Tokyo To	100-0402	91.9 /km²
5	Kōchi Prefecture	Tokyo To	198-0224	97.0 /km²
6	Kozushima	Tokyo To	100-0601	98.9 /km²
7	Hara	Tokyo To	198-0223	178.9 /km²
8	Nagaoka	Tokyo To	190-1232	298.4 /km²
9	Hikawa	Tokyo To	198-0212	330.9 /km²
10	Hinode	Tokyo To	190-0100	606.2 /km²
11	Akiruno	Tokyo To	197-0802	1,083.4 /km²
12	Ōme-shi	Tokyo To	198-0082	1,281.9 /km²
13	Kawai	Tokyo To	198-0102	2,063.5 /km²
14	Hachiōji-shi	Tokyo To	192-0989	3,089.0 /km²
15	Musashimurayama	Tokyo To	208-0023	4,646.4 /km²
16	Inagi	Tokyo To	206-0823	5,197.2 /km²
17	Hamura	Tokyo To	205-0022	5,451.5 /km²
18	Sakai	Tokyo To	198-0222	5,502.3 /km²
19	Fussa	Tokyo To	197-0014	5,582.0 /km²
20	Chiyoda	Tokyo To	100-8912	5,749.2 /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.