Shimotsuma (下妻市, Shimotsuma-shi) is a city located in Ibaraki Prefecture, Japan. As of 1 January 2024[update], the city had an estimated population of 41,621 in 17,294 households and a population density of 515 persons per km². The percentage of the population aged over 65 was 29.0%.[1] The total area of the city is 80.88 square kilometres (31.23 sq mi).
Geography
Shimotsuma is located in western Ibaraki Prefecture. The Kinugawa River flows through the city.
Shimotsuma has a Humid continental climate (Köppen Cfa) characterized by warm summers and cool winters with light snowfall. The average annual temperature in Shimotsuma is 14.3 °C (57.7 °F). The average annual rainfall is 1,231.8 mm (48.50 in) with October as the wettest month. The temperatures are highest on average in August, at around 25.8 °C (78.4 °F), and lowest in January, at around 3.0 °C (37.4 °F).[2]
Climate data for Shimotsuma (1991−2020 normals, extremes 1978−present)
Per Japanese census data,[4] the population of Shimotsuma peaked around the year 2000 and has declined slightly since.
Historical population
Year
Pop.
±%
1920
38,559
—
1930
37,829
−1.9%
1940
37,718
−0.3%
1950
42,123
+11.7%
1960
38,458
−8.7%
1970
35,512
−7.7%
1980
39,337
+10.8%
1990
42,704
+8.6%
2000
46,544
+9.0%
2010
44,987
−3.3%
2020
42,521
−5.5%
History
Shimotsuma developed as a castle town from the Muromachi period. It was the center of Shimotsuma Domain under the Tokugawa shogunate during the Edo period. The town of Shimotsuma was established on April 1, 1889 with the establishment of the modern municipalities system. It was elevated to city status on January 1, 1955.
On January 1, 2006, the village of Chiyokawa (from Yūki District) was merged into Shimotsuma.
Government
Shimotsuma has a mayor-council form of government with a directly elected mayor and a unicameral city council of 20 members. Shimotsuma contributes one member to the Ibaraki Prefectural Assembly. In terms of national politics, the city is part of Ibaraki 1st district of the lower house of the Diet of Japan.
Economy
The economy of Shimotsuma is primarily agricultural.
Education
Shimotsuma has nine public elementary schools and three public middle schools operated by the city government, and two public high schools operated by the Ibaraki Prefectural Board of Education. The prefecture also operates a special education school for the handicapped.
The city is the setting of Takemoto Novala's novel Shimotsuma Monogatari (also known as Kamikaze Girls), and the manga and film of that name. The movie was filmed on location in Shimotsuma.
