Isumi いすみ市 | |
|---|---|
 | |
 Flag  Emblem | |
 Location of Isumi in Chiba Prefecture | |
  Isumi | |
| Coordinates:35°15′14.1″N140°23′6.7″E / 35.253917°N 140.385194°E /35.253917; 140.385194 | |
| Country | Japan |
| Region | Kantō |
| Prefecture | Chiba |
| Government | |
| • Mayor | Hiroshi Ōta (2005-present)[1] |
| Area | |
• Total | 157.44 km2 (60.79 sq mi) |
| Population (November 2020) | |
• Total | 37,206 |
| • Density | 240/km2 (610/sq mi) |
| Time zone | UTC+9 (Japan Standard Time) |
| Address | 7400 Ōhara, Isumi-shi, Chiba-ken 298-8501 |
| Website | Official website |
Isumi (いすみ市,Isumi-shi) is acity located inChiba Prefecture,Japan. As of 1 November 2020[update], the city had an estimatedpopulation of 37,206 in 17,004 households and apopulation density of 240 persons per km2.[2] The total area of the city is 157.44 square kilometres (60.79 sq mi).
Isumi is located on the east coast of southern Chiba Prefecture, on theBōsō Peninsula. It is bordered by thePacific Ocean to the east, and enjoys a temperate maritime climate, with short, cool winters and hot, humid summers due to the effects of theKuroshio Current offshore. The area is noted for its beach resorts, which are at the end of theKujūkuri Beach area, and the landscape consists of rolling, sandy hills. TheIsumi River, a small river which runs through this portion of the peninsula, empties into the Pacific Ocean at Misaki. Parts of the city are within theMinami Bōsō Quasi-National Park. Mount Arakine is the highest point in the city, with an elevation of 157.8 meters. The city is approximately 45 kilometers from the prefectural capital ofChiba and 70 to 80 kilometers from central Tokyo.
Isumi has ahumid subtropical climate (KöppenCfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Isumi is 15.4 °C. The average annual rainfall is 1834 mm with September as the wettest month. The temperatures are highest on average in August, at around 25.8 °C, and lowest in January, at around 6.0 °C.[3]
Per Japanese census data,[4] the population of Isumi has declined in recent decades
| Year | Pop. | ±% |
|---|---|---|
| 1950 | 54,556 | — |
| 1960 | 48,395 | −11.3% |
| 1970 | 43,112 | −10.9% |
| 1980 | 42,816 | −0.7% |
| 1990 | 43,431 | +1.4% |
| 2000 | 42,835 | −1.4% |
| 2010 | 40,962 | −4.4% |
| 2020 | 35,544 | −13.2% |
Isumi is part of ancientKazusa Province. The place name is very ancient, appearing even in theNihon Shoki, which mentions the area as the source ofabalone and pearls for the Yamato court during the reign of theKofun periodEmperor Ankan. During theEdo period, the area was mostlytenryō territory ruled by varioushatamoto on behalf of theTokugawa shogunate. The village of Kuniyoshi was established withinIsumi District, Chiba with the establishment of the modern municipalities system on April 1, 1889. It was raised to town status on September 22, 1894. The town of Isumi was established on April 29, 1955 from the merger of Kuniyoshi Town with the neighboring villages of Nakagawa and Chimachi.
The city of Isumi was created on December 5, 2005 when the formertown of Isumi absorbed the neighboring towns ofMisaki andŌhara (all from Isumi District).
Isumi has amayor-council form of government with a directly elected mayor and aunicameral city council of 18 members. Isumi contributes one member to the Chiba Prefectural Assembly. In terms of national politics, the city is part ofChiba 11th district of thelower house of theDiet of Japan.
The local economy is dominated bycommercial fishing.Ise-ebi, a species of spinylobster, is a notable product of Isumi, as aresardines andJapanese amberjack. The middle reaches of theIsumi River provide irrigation for extensivepaddy fields for rice production in Isumi. The area also producestomatoes andcucumbers.[5][6] The economy is supplemented by the summer tourist traffic to the local beach resorts. The border betweenIchinomiya and Isumi City starts at the southern end of the 60-kmKujūkuri Beach adjacent to Taito port. Taito beach and areas to the north are noted surfing areas. Thesurfing competition at the2020 Olympic Games will be held at Shidashita Beach just north of Isumi.
Isumi has ten public elementary schools and three public middle schools operated by the city government, and one public high school operated by the Chiba Prefectural Board of Education. The prefecture also operates one special education school for the handicapped.
Isumi is approximately 1 hour and 10 minutes fromTokyo Station by limited express train viaŌhara Station on theJR EastSotobō Line. Ōhara Station is also the connecting point for the JR East Sotobō Line and the Isumi Railway CompanyIsumi Line, which connects the Pacific Coast of east Chiba Prefecture to the interior areas of the Bōsō Peninsula.[6]
– Isumi Railway Company -Isumi Line
Duluth, Minnesota, United States, since October 3, 1990 (with former Ōhara Town)Waupun, Wisconsin, United States, since August 29, 1995 (with former Isumi Town)
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