OITA

Births Deaths 1 Household Population Density Marriages Divorces
11.9 Persons
per Day ※1
History of the City
1889 April
1892 September
1907 April
June
July
1911 April
1920 January
1921 January
1938 April
1939 August
1941 November
1943 April
November
1944 February
1954 March
1955 January
February
March
July
1956 April
1957 April
1959 February
1960 February
1963 March
2005 January
11.1 Persons
per Day ※1
Enforcement of Municipal Regulations
Oita Town, Nishi Oita Town, Enokuma Village, Hofu Village, Hioka Village,
Yahata Village, Higashi Oita Village, Takio Village, Tsurusaki Village, Misa
Village, Beppo Village, Momozono Village, Meiji Village, Matsuoka
Village, Kawazoe Village, Takata Village, Hetsugi Village, Takenaka
Village, Kawarauchi Village, Handa Village, Yoshino Village, Wasada
Village, Nishi Wasada Village, Higashi Wasada Village, Kaku Village,
Higashi Ozai Village, Nishi Ozai Village, Saka Village, Ichi Village, Niu
Village, Kozai Village, Saganoseki Town, Koumeki Village, Ojuki Village,
Isshakuya Village, Notsuharu Village, Suwa Village, Imaichi Village
Saka Village renamed to Saga Village
The merger of Nishi Oita Town, Enokuma Village and Hofu Village by
Oita Town
The merger of Kawarauchi Village by Takenaka Village
The merger of Nishi Wasada Village by Wasada Village
The merger of Notsuharu Village and Suwa Village, becoming
Notsuharu Village
The merger of Higashi Ozai Village and Nishi Ozai Village, becoming
Ozai Village
The merger of Saga Village and Ichi Village, becoming Sagaichi illage
The merger of Koumeki Village and Ojuki Village, becoming Kouzaki Village
Municipal organization enforced for Oita Town, Oita city is established
Town organization enforced for Sagaichi Village, becomes Sakanoichi Town
Town organization enforced for Hetsugi Village, becomes Hetsugi Town
The incorporation of Beppo Village into Tsurusaki Town
The incorporation of Yahata Village, Takio Village and Higashi Oita
Village into Oita city
The merger of Niu Village and Kozai Village by Sakanoichi Town
The incorporation of Misa Village into Tsurusaki Town
The incorporation of Hioka Village into Oita City
The incorporation of Momozono Village into Tsurusaki Town
The merger of Tsurusaki Town, Meiji Village, Matsuoka Village,
Kawazoe Village and Takata Village, and the beginning of Tsurusaki City
The merger of Hetsugi Town, Handa Village, Takenaka Village and
Yoshino Village, and the beginning of Dainan Town
The incorporation of a part of Kaku Village and Higashi Wasada Village
into Oita City
The merger of Saganoseki Town, Kouzaki Village, Isshakuya Village,
becoming Saganoseki Town
The merger of Wasada Village, Higashi Wasada Village and Kaku
Village, becoming Oita Village
The merger of Notsuharu Village and Imaichi Village becoming
Notsuharu Village
The incorporation of a part of Tsurusaki City and Hasama Town into
Oita City
The incorporation of a part of Hasama Town into Oita Village
The incorporation of a part of Oita Village into Hasama Town
By town organization, Oita village becomes Oita Town
Notsuharu Village becomes Notsuharu Town
The incorporation of a part of Notsuharu Town into Oita Town
The merger of the 6 municipalities, Oita City, Tsurusaki City, Dainan
City, Oita Town, Ozai Village and Sakanoichi Town, becoming Oita City
The incorporation of Saganoseki Town and Notsuharu Town into Oita City
2.3 Persons ※2 952 Persons
per 1km² ※2
7.2 Couples
per Day ※1
2.5 Couples
per Day ※1
Moving In Moving Out Amount of Waste Disposal Amount of Sewage Disposal Amount of Water Supply Construction of Houses
40.8 Persons
per Day ※1
41.4 Persons
per Day ※1
472t Per Day ※1 323kl per Day ※1 137 Thousand
per Day ※1
Fires Emergency Participation Traffic Accidents Doctors
0.3 per Day ※1 48 per Day ※1 6.5 per Day ※1 1 per 388 Citizens ※3
10.0 per Day ※1
The Path of the City Administration
1963 March
June
August
November
1964 January
1965 February
April
July
1966 May
July
October
1967 October
1968 April
May
1969 June
September
1970 January
March
December
1971 May
October
December
1972 April
August
November
December
1973 January
March
September
October
*1. In the year of 2014
*2. The calculation is based on the registered resident
population of the last day of September, 2014
(including foreigners)
*3. The calculation is based on the registered resident
population of the last day of December, 2014
(including foreigners)
First Oita city council, held by 129 representatives
New residents indication implemented (city center)
Mitsuyoshi water purification plant partially completed,
begins supplying water
JR Nippo mainline double track construction starts
Oita district is designated as a new industrial city
The first post-merger city council election was held, and 44
remained out of 129 people
Oita port opened
Municipal athletics stadium is completed
Mera waste incineration plant is completed
Benten bridge is completed, costal industrial road is developed
Oita cultural center is completed
Oita national athletic meet (21 st national sports festival fall
meet) is held
Coalition with Obihiro city as sister cities
JR Nippo mainline limited express train service begins
because of electrification
Oita traffic disaster mutual aid system is launched
Oita high vocational school is opened
Oita petrochemical complex completed
Harukawa sewage treatment plant begins operation
Garbage collection becomes free
Opening of Ryozen forest park
Zero-years-old nursery school opens
The establishment of the Oita pollution expulsion citizen’s
charter
Urban areas and urbanization control areas are determined
Enokuma Purification Plant Completed
Transfer of Oita Airport
Decision on Oita Comprehensive Development Planning
The Betsudai train abolished
The igniting of the No.1 blast furnace of Nippon Steel Oita
Works
Oita regional wide area municipal council launched
Tsurusaki community center completed
Ryozen Seinen no Ie is completed
Onizaki incombustible treatment plant (landfill) completed
Implementation of elder visitation system
Begging of construction on the Wasada public sewer business
The signing of pollution prevention agreements by Suitomo
Chemical
The city’s tree and flower are decided as the “Horutonoki”
and the “Camellia Sasanqua”
The Ozu treatment plant completed
Dainan, Sakanoichi’s “Elder rest house” opens
The signing of pollution prevention agreements by Nippon
Steel Oita Works
1973 December
1974 February
March
May
June
July
August
December
1975 May
June
July
October
November
1976 April
October
1977 February
May
August
October
November
1978 June
October
1979 May
September
October
1980 January
April
June
October
1981 April
May
July
August
September
October
December
1982 February
July
November
1983 January
February
March
April
May
August
September
November
1984 February
April
August
September
October
November
December
1985 March
April
May
1986 April
June
October
1987 March
The development of phase 2, number 7 of the new industrial
city begins
Special woods council designate 42 special trees and 11 forests
Oita is chosen at the traffic safety model city
The death of honorary citizen Mr. Heihachiro Fukuda
City social welfare center opens
Matsubara green space completed
The signing of pollution prevention agreements by Kyuseki
Municipal heated pool opens
Mobile library “Soyokaze No.1” begins
The signing of pollution prevention agreements by the Showa
Denko complex
Specified as a designated model city for welfare for the disabled
FESPIC games held with the participation of 18 countries
Oita fire department south precinct (now south fire station)
opened
Fukumune Cleaning Plant Completed
Yokoo purification plant completed
Usuki Shonen Shizen no Ie opened
First lecture at sea on the “Oita Seinen no Fune”
Start of the municipal administration monitor
The igniting of the No.2 blast furnace of Nippon Steel Oita Works
Oita City Central Wholesale Market Opened
A goodwill mission dispatched to Rome
Established day of citizen honor
Opening of the outpatient training area “Horuto-En” for
mentally ill patients
Oita’s festival “33 million faces” is held
New city hall building completed
First waste exhibition is held
The operation of the Benten Shumatsu treatment plant began
The opening of the Nishi Oita bypass
Decision on the Oita city comprehension basic plan design
Coalition with Aveiro city as sister cities
Wasada public hall completed
Audiovisual center opened
Coalition with Wuhan city as friendship cities
Oita’s friendship visit to China
Ono river bridge, Ieshima bridge opened
New waterworks building completed
The death of honorary citizen Mr. Tamotsu Ueda
A goodwill visit from Aveiro city
Signing of pollution prevention agreements with Mitsui Engineering
Completion of Dainan Public Hall
Hiyoshibaru Green Exercise Facility is complete
Oita performances of China Wuhan Art Troupe
First “Ship of Home” sailed
First Disabled Athletic Meet
Mitsui shipbuilding begins operation
Onizaki waste crushing facility is completed
New government firefighting building completed
The Omocha Library opens
The first “Oita Tanabata Festival” is held
Statue of Otomo Sorin placed in Oita station square
Mr. Tatsuo Takayama is nominated as an honorary citizen
Yoshihiro Nishimura is honored for winning the Bestudai
Marathon as the No.1 citizen’s honor award enactment
Opening of the Garbage museum
Signing of pollution prevention agreements with Toshiba
Completion of Oita citizen’s rest place “Yasuragi”
Construction of the Mucchan peace statue
Signing of pollution prevention agreements with Kyushu
Electric Power
First Oita International Wheelchair Marathon held
Renovation of Oita athletic stadium all-weather track
Completion of Sakanoichi public hall
First Mucchan peace festival held
Fifth anniversary celebration of Oita and Wuhan as friendship
cities
Completion of “Wuhan Forest” as a friendship symbol of Oita
and Wuhan
Designated as a new media model area
Oita city’s Silver Human Resources Center starts
The adoption of the Oita Peace City Declaration
Designated as a TELTOPIA model city
Ozai community hall is completed
The CAPTAIN system launches
Oita city Tokyo office opens
Eastern cleaning center is completed
Compal Hall opens
Mr. Tamahiko Ando is nominated as an honorary citizen
Construction starts on undergrounding (CAB system)
Oita City Historical Museum is completed
1987 May
October
1988 March
April
June
October
1989 March
September
1990 January
February
March
April
September
October
December
1991 March
April
July
September
October
November
1992 April
October
November
December
1993 February
April
May
June
August
September
October
1994 February
March
April
May
July
October
November
1995 February
April
May
July
August
The green culture center opens
Oita funeral hall opens
Amenities sewer project is completed
The signing of pollution prevention agreements with Honshu
Paper
Minami Oita community hall is completed
Furugo water purification plant begins operation
Meiji Akeno community hall is completed
Designated as an HDTV (advanced imagery city) concept
model city
Events are held for the 10 th year of the coalition of Oita and
Wuhan as friendship cities
Hirose Bridge opens
Funamoto Bridge opens
Day service businesses start
Ozai Disposal Plant is completed
Oita Childbirth Encouragement System starts
Heiwa Shimin Park Noh theater opens
Honorary Citizen Mr. Tamahiko Ando’s death
China Wuhan cultural relic’s exhibition is held
The High Vision Gallery is completed
Coalition with Austin city as sister cities
The 2 nd city hall government building is completed
Oita Heiwa Shimin Park is completed
Minami Oita Gymnasium is completed
Sano Botanical Park’s ornamental greenhouse opens
Oita’s drainage measures promotion planning decided
Oita wins the 100m breaststroke in the Japan Championship
Swimming Games Akira Hayashi (Oita Tsurusaki High School)
receives the civic honorary award
Oita city is also damaged by the large scale typhoon No. 19
Infant’s medical expenses subsidy is raised to 3 years old
The third National Lifelong Learning Festival is held
Matsuoka Disposal Plant begins operation
Oita Nanbu Community Hall is completed
A goodwill delegation group from Austin city visits
The Bungokokubu Temple Ruins Environmental Arrangement
Project is completed
The square honoring painter Heihachirou Fukuda is completed
The Kyushu crossing motorway between Oita and Beppu is
opened
“The Iki-Iki Oita” is held, commending the Iki-iki Oita activation
cooperation award
The city’s depopulation prevention project starts
The 30 th year ceremony of Oita city’s establishment is held
The sewerage ladies adviser system is launched
Swimmer Akira Hayashi is presented with the 1 st “Iki-Iki Oita
Sports Award”
The 1 st gold medal is presented to a 100 year old person for
longevity
Oita’s youth visits Austin city
The city receives the largest scale damage by the typhoon
No. 13 since the war
Oita city’s goodwill delegation visits Austin city
Funai Castle maintenance basic planning begins
Oita Contemporary Art Exhibition ’93 is held
Seibu Community Hall and Horuto-En open
Onozuru Bridge is opened
“Oita Elders Health and Welfare Plan” is decided
Galleria Takemachi opens
Funai Goban-gai opens
Tsurusaki Milky Way opens
The Japan Portugal friendship 450 th year commemoration
ship monument is completed
The Kawarauchi Kusunoki hall is completed
Notsuharu Shonen Shizen no Ie opens
Hiyoshibaru leisure pool opens
Funai Aqua Park is completed
The festival of Amabe is held
Jazz Super Session ’94 in Oita is held
Wuhan city’s friendship delegation arrives
Ono river goby fishing tournament for charity is held
The Minimuseo Isozaki is completed in the audiovisual center
1 st Oita City Architecture Grand Prize awarded
The prefecture transfers partial authority to the city
Construction of the municipal athletics stadium night lighting
equipment is completed
Fire emergency communications command system is completed
Municipal heated pool renovation completed
Oita city sports extended comprehensive development basic
plan report is submitted
Sanbachikirin appears at the Tanabata Festival square with
430,000 people
30 31