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Hioki

日置市
Hioki 日置市
City
	Ijūin city from the Joyama Park in 2020
	Flag Emblem
	Location of Hioki in Kagoshima Prefecture
	Hioki Location in Japan
	Coordinates: 31°38′01″N 130°24′09″E / 31.63361°N 130.40250°E
Country	Japan
Region	Kyushu
Prefecture	Kagoshima
Government
• Mayor	Takamitsu Miyaji
Area
• Total	253.01 km2 (97.69 sq mi)
Population (July 1, 2024)
• Total	46,348
• Density	180/km2 (470/sq mi)
Time zone	UTC+09:00 (JST)
City hall address	1-100 Kori Ijuin-machi, Hioki-shi, Kagoshima-ken 899-2592
Climate	Cfa
Website	Official website
Symbols
Flower	Prunus mume
Tree	Pinus thunbergii

Hioki (日置市, Hioki-shi) is a city in Kagoshima Prefecture, Japan. As of 1 July 2024^[update], the city had an estimated population of 46,348 in 22706 households, and a population density of 180 persons per km².^[1] The total area of the city is 253.01 km² (97.69 sq mi).

Geography

Hioki is located in the central part of Kagoshima Prefecture, in the mid-west of the Satsuma Peninsula. The western part of the city faces the East China Sea, and is home to Fukiagehama Beach, one of Japan's three largest sand dunes. Kutajima Island, an uninhabited island about 12 kilometers offshore from Fukiagehama, is within the city limits.

Adjacent municipalities

Kagoshima Prefecture

Climate

Hioki has a humid subtropical climate (Köppen climate classification Cfa) with hot summers and mild winters. Precipitation is significant throughout the year, and is heavier in summer, especially the months of June and July. The average annual temperature in Hioki is 17.3 °C (63.1 °F). The average annual rainfall is 2,265.0 mm (89.17 in) with June as the wettest month. The temperatures are highest on average in August, at around 27.3 °C (81.1 °F), and lowest in January, at around 7.5 °C (45.5 °F).^[2] Its record high is 36.3 °C (97.3 °F), reached on 19 August 2013, and its record low is −6.3 °C (20.7 °F), reached on 19 February 1977.^[3]

Climate data for Higashiichiki, Hioki (1991−2020 normals, extremes 1977−present)
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Record high °C (°F)	22.4 (72.3)	23.2 (73.8)	24.7 (76.5)	29.4 (84.9)	30.6 (87.1)	33.2 (91.8)	36.3 (97.3)	36.3 (97.3)	35.5 (95.9)	32.9 (91.2)	28.1 (82.6)	23.6 (74.5)	36.3 (97.3)
Mean daily maximum °C (°F)	12.0 (53.6)	13.3 (55.9)	16.1 (61.0)	20.4 (68.7)	24.1 (75.4)	26.4 (79.5)	30.2 (86.4)	31.6 (88.9)	29.3 (84.7)	25.1 (77.2)	19.8 (67.6)	14.4 (57.9)	21.9 (71.4)
Daily mean °C (°F)	7.5 (45.5)	8.6 (47.5)	11.5 (52.7)	15.6 (60.1)	19.4 (66.9)	22.8 (73.0)	26.6 (79.9)	27.3 (81.1)	24.6 (76.3)	19.8 (67.6)	14.6 (58.3)	9.5 (49.1)	17.3 (63.2)
Mean daily minimum °C (°F)	2.9 (37.2)	3.6 (38.5)	6.4 (43.5)	10.5 (50.9)	14.8 (58.6)	19.6 (67.3)	23.6 (74.5)	23.9 (75.0)	20.7 (69.3)	15.0 (59.0)	9.5 (49.1)	4.7 (40.5)	12.9 (55.3)
Record low °C (°F)	−5.4 (22.3)	−6.3 (20.7)	−3.4 (25.9)	−0.1 (31.8)	5.4 (41.7)	11.0 (51.8)	17.0 (62.6)	16.4 (61.5)	10.0 (50.0)	1.6 (34.9)	−2.1 (28.2)	−4.2 (24.4)	−6.3 (20.7)
Average precipitation mm (inches)	75.8 (2.98)	99.4 (3.91)	151.1 (5.95)	174.3 (6.86)	187.1 (7.37)	516.3 (20.33)	310.2 (12.21)	240.6 (9.47)	243.6 (9.59)	92.2 (3.63)	111.4 (4.39)	98.4 (3.87)	2,265 (89.17)
Average precipitation days (≥ 1.0 mm)	10.2	9.6	12.3	10.2	10.0	15.1	10.9	10.3	10.2	7.2	9.0	9.5	124.5
Mean monthly sunshine hours	116.1	133.3	162.3	180.6	183.9	112.0	192.5	220.8	186.7	191.2	156.1	126.2	1,964.9
Source: Japan Meteorological Agency^[3]^[2]

Demographics

Per Japanese census data, the population of Hioki in 2020 is 47,153 people.^[4] Hioki began its first census in 1960, and the brief exodus ended in the 1970s, after which the population remained relatively stable until 2020.

Historical population

Year	Pop.	±%
1960	67,756	—
1965	60,027	−11.4%
1970	54,656	−8.9%
1975	52,250	−4.4%
1980	52,022	−0.4%
1985	53,025	+1.9%
1990	52,675	−0.7%

Year	Pop.	±%
1995	52,791	+0.2%
2000	53,391	+1.1%
2005	52,411	−1.8%
2010	50,831	−3.0%
2015	49,249	−3.1%
2020	47,153	−4.3%

Hioki population statistics^[4]

History

Hioki is part of ancient Satsuma Province and was one of the centers of the Shimazu clan during the Kamakura and Muromachi periods. It was part of the holdings of Satsuma Domain in the Edo period. On April 1, 1889, the villages of Nakaijuin, Shimoijuin, Higashiichiki, Hioki, Yoshiri, Nagayoshi in Hiki District and Isaku in Ata District were established with the creation of the modern municipalities system. Nakaijuin was raised to town status in April 1922, becoming the town of Ijuin, followed by Isaku in December 1922 and Higashiichiki in April 1937. Hioki and Yoshiri merged in April1955 to form the town of Hiyoshi ad Isaku and Nagayoshi merged to form the town of Fukiage. The city of Hioki was established on May 1, 2005, from the merger of the towns of Fukiage, Higashiichiki, Hiyoshi and Ijūin (all from Hioki District).

Government

Hioki has a mayor-council form of government with a directly elected mayor and a unicameral city council of 20 members. Hioki contributes two members to the Kagoshima Prefectural Assembly. In terms of national politics, the city is part of the Kagoshima 3rd district of the lower house of the Diet of Japan.

Economy

Hioki has a mixed economy of commerce, agriculture, light manufacturing and commercial fishing.

Education

Hioki has 15 public elementary schools and five public junior high schools by the city government, and four public high schools operated by the Kagoshima Prefectural Board of Education. There is also one private combined junior/senior high school.