Most densely populated municipalities — Iwate Ken
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The 20 municipalities in Iwate Ken with the highest people per km², and the 20 with the lowest, out of 35 with a published figure.
Most densely populated municipalities
| Municipality | Prefecture | Postal code | People per km² | |
|---|---|---|---|---|
| 1 | Arakawa | Iwate Ken | 028-1303 | 21,446.0 /km² |
| 2 | Nakamura-ku | Iwate Ken | 028-8334 | 8,263.7 /km² |
| 3 | Ando | Iwate Ken | 028-1105 | 1,669.6 /km² |
| 4 | Ōkawa-shi | Iwate Ken | 028-2232 | 969.6 /km² |
| 5 | Nakayama | Iwate Ken | 028-8344 | 340.8 /km² |
| 6 | Morioka | Iwate Ken | 020-0833 | 327.8 /km² |
| 7 | Nagasaki Prefecture | Iwate Ken | 028-1351 | 318.4 /km² |
| 8 | Takizawa | Iwate Ken | 020-0690 | 307.2 /km² |
| 9 | Kitakami | Iwate Ken | 024-0076 | 211.1 /km² |
| 10 | Shiwa | Iwate Ken | 028-3448 | 134.1 /km² |
| 11 | Ōshū-shi | Iwate Ken | 023-1115 | 113.3 /km² |
| 12 | Hiraizumi | Iwate Ken | 029-4192 | 113.2 /km² |
| 13 | Ōfunato | Iwate Ken | 022-0211 | 107.2 /km² |
| 14 | Hanamaki | Iwate Ken | 025-0244 | 102.2 /km² |
| 15 | Ichinoseki | Iwate Ken | 021-0867 | 89.0 /km² |
| 16 | Kanegasaki | Iwate Ken | 029-4500 | 85.3 /km² |
| 17 | Nagashima | Iwate Ken | 029-4101 | 83.1 /km² |
| 18 | Rikuzentakata | Iwate Ken | 029-2205 | 78.4 /km² |
| 19 | Kamaishi | Iwate Ken | 026-0041 | 75.1 /km² |
| 20 | Ninohe | Iwate Ken | 028-6868 | 59.7 /km² |
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Most sparsely populated municipalities
| Municipality | Prefecture | Postal code | People per km² | |
|---|---|---|---|---|
| 1 | Kitayama | Iwate Ken | 028-8402 | 8.5 /km² |
| 2 | Iwaizumi | Iwate Ken | 027-0501 | 8.6 /km² |
| 3 | Nishiwaga | Iwate Ken | 029-5500 | 8.6 /km² |
| 4 | Sumita | Iwate Ken | 029-2300 | 14.9 /km² |
| 5 | Tanohata | Iwate Ken | 028-8400 | 19.3 /km² |
| 6 | Hachimantai | Iwate Ken | 028-7564 | 27.5 /km² |
| 7 | Tōno-shi | Iwate Ken | 028-0531 | 30.5 /km² |
| 8 | Iwate | Iwate Ken | 020-0554 | 33.5 /km² |
| 9 | Fudai | Iwate Ken | 028-8335 | 35.7 /km² |
| 10 | Kunohe | Iwate Ken | 028-7901 | 39.2 /km² |
| 11 | Miyako | Iwate Ken | 027-0301 | 40.4 /km² |
| 12 | Ōmachi-shi | Iwate Ken | 028-1112 | 45.8 /km² |
| 13 | Kuji | Iwate Ken | 028-0063 | 52.6 /km² |
| 14 | Otsuchi | Iwate Ken | 028-1131 | 53.5 /km² |
| 15 | Yamada | Iwate Ken | 028-1321 | 54.7 /km² |
| 16 | Ninohe | Iwate Ken | 028-6868 | 59.7 /km² |
| 17 | Kamaishi | Iwate Ken | 026-0041 | 75.1 /km² |
| 18 | Rikuzentakata | Iwate Ken | 029-2205 | 78.4 /km² |
| 19 | Nagashima | Iwate Ken | 029-4101 | 83.1 /km² |
| 20 | Kanegasaki | Iwate Ken | 029-4500 | 85.3 /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.
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