Most populated municipalities

The 20 municipalities in Nagano Ken with the most residents, and the 20 with the fewest, out of 83 with a published figure.

	Municipality	Prefecture	Postal code	Residents
1	Nagano Prefecture	Nagano Ken	381-0036	2,024,073
2	Sakai	Nagano Ken	399-7711	824,408
3	Itabashi	Nagano Ken	384-1304	581,337
4	Fujisawa	Nagano Ken	384-2302	436,744
5	Nakano	Nagano Ken	383-0046	341,014
6	Nakahara-ku	Nagano Ken	382-0804	263,760
7	Matsumoto	Nagano Ken	390-8502	239,115
8	Chūō	Nagano Ken	399-0493	169,179
9	Ueda	Nagano Ken	386-1105	152,948
10	Sakae-ku	Nagano Ken	389-2700	119,643
11	Sano	Nagano Ken	381-0402	114,842
12	Kasuga	Nagano Ken	395-0301	111,144
13	Saku	Nagano Ken	385-0016	98,292
14	Iida	Nagano Ken	395-0244	96,642
15	Azumino	Nagano Ken	399-8212	93,927
16	Takayama	Nagano Ken	382-0800	85,199
17	Anan	Nagano Ken	399-1500	69,259
18	Shiojiri	Nagano Ken	399-0732	66,181
19	Ina	Nagano Ken	396-0215	65,670
20	Chikuma	Nagano Ken	387-8512	58,755

Least populated municipalities

	Municipality	Prefecture	Postal code	Residents
1	Ōshika-mura	Nagano Ken	399-3500	928
2	Ikusaka	Nagano Ken	399-7200	1,639
3	Ikeda	Nagano Ken	399-8601	2,271
4	Ogawa	Nagano Ken	395-1107	2,288
5	Omi	Nagano Ken	399-7700	2,530
6	Otari	Nagano Ken	399-9400	2,592
7	Minamimaki	Nagano Ken	384-1300	3,066
8	Nozawaonsen	Nagano Ken	389-2500	3,286
9	Shimojō-mura	Nagano Ken	399-2100	3,578
10	Kawakami	Nagano Ken	389-1226	3,830
11	Aoki	Nagano Ken	386-1600	4,083
12	Chikuhoku	Nagano Ken	399-7500	4,113
13	Kijimadaira	Nagano Ken	389-2300	4,260
14	Kosaka	Nagano Ken	389-1227	4,686
15	Nagawa	Nagano Ken	386-0600	5,580
16	Takamori	Nagano Ken	399-3100	5,724
17	Takagi	Nagano Ken	395-1100	5,937
18	Achi	Nagano Ken	395-0300	6,044
19	Kamijima	Nagano Ken	399-0512	6,304
20	Tateshina	Nagano Ken	384-2300	6,678

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.