| Rumoi Subprefecture | |
| Native Name Lang: | ja |
| Official Name: | Rumoi-shinkōkyoku |
| Settlement Type: | Subprefecture |
| Pushpin Map: | Japan |
| Pushpin Map Caption: | Rumoi Subprefecture in Japan |
| Coordinates: | 43.9347°N 141.6558°W |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | Prefecture |
| Subdivision Name1: | Hokkaido |
| Seat Type: | Capital |
| Seat: | Rumoi |
| Area Total Km2: | 4019.91 |
| Population Total: | 52627 |
| Population As Of: | December 2011 |
| Population Density Km2: | auto |
| Timezone1 Dst: | Japan Standard Time (UTC+9) |
is a subprefecture of Hokkaido Prefecture, Japan. As of 2011, it had a population of 52,627 and an area of 4019.97km2. The population density of the subprefecture, 13 people per km2, is very low compared to the rest of Japan. The population of Rumoi Subprefecture represents 0.96% of the overall population of Hokkaido.[1] [2]
Rumoi Subprefecture stretches broadly across the coast of the Sea of Japan in northwestern Hokkaido.
| Name | Area (km2) | Population | Pop. Density | District | Type | Map | ||
|---|---|---|---|---|---|---|---|---|
| Rōmaji | Kanji | |||||||
| Enbetsu | 遠別町 | 590.86 | 2,966 | 5.02 | Teshio District | Town | ||
| Haboro | 羽幌町 | 472.49 | 7,338 | 15.53 | Tomamae District | Town | ||
| Mashike | 増毛町 | 369.64 | 4,634 | 12.54 | Mashike District | Town | ||
| Obira | 小平町 | 627.29 | 3,277 | 5.22 | Rumoi District | Town | ||
| Rumoi (capital) | 留萌市 | 297.44 | 22,242 | 74.78 | no district | City | ||
| Shosanbetsu | 初山別村 | 280.04 | 1,249 | 4.46 | Tomamae District | Village | ||
| Teshio | 天塩町 | 353.31 | 3,241 | 9.17 | Teshio District | Town | ||
| Tomamae | 苫前町 | 454.5 | 3,261 | 7.17 | Tomamae District | Town | ||
The Rumoi River 44km (27miles) flows from Mount Poroshiri in the Hidaka Mountain range to the Sea of Japan.[3]
Mashike Subprefecture was established as part of the administrative reforms of Hokkaido during the Meiji period (1868 - 1912). The capital was moved to Rumoi in 1914, and the subprefecture was renamed to Rumoi Subprefecture in the same year. Toyotomi Town) in Teshio District transferred to Sōya Subprefecture in 1948, and Horonobe was transferred to Sōya Subprefecture in 2010.
The fishing industries dominates the economy of the area, and seafood processing remains a thriving industry.