Ageo
上尾市
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Ageo City Hall
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Location of Ageo in Saitama Prefecture
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  Ageo
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| Coordinates: 35°58′38.6″N 139°35′35.5″E / 35.977389°N 139.593194°E / 35.977389; 139.593194 | |
| Country | Japan |
| Region | Kantō |
| Prefecture | Saitama |
| Area | |
| • Total | 45.51 km2 (17.57 sq mi) |
| Population
(February 1, 2024)
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| • Total | 230,041 |
| • Density | 5,100/km2 (13,000/sq mi) |
| Time zone | UTC+9 (Japan Standard Time) |
| - Tree | Osmanthus |
| - Flower | Azalea |
| Phone number | 048-775-5111 |
| Address | 3-1-1 Honchō, Ageo-shi, Saitama-ken 362-8501 |
| Website | Official website |
Ageo (上尾市, Ageo-shi) is a city located in Saitama Prefecture, Japan. As of February 1, 2024, the city had an estimated population of 230,041 in 107,555 households and a population density of 5100 persons per km2.[1] The total area of the city is 45.51 square kilometres (17.57 sq mi).
Ageo is located in the Kanto Plain, slightly east of the center of Saitama Prefecture, and there are no mountains in the city. The city is roughly 10.48 km east–west and 9.32 km north–south. It partially touches the left bank of the Arakawa River.The Kamo River and Shiba River flow through the city. The Ayase River forms the boundary to the east and the Egara, a tributary of the Arakawa River forms the northwest boundary.
Ageo has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Ageo is 14.7 °C. The average annual rainfall is 1388 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.7 °C, and lowest in January, at around 3.9 °C.[2]
Per Japanese census data,[3] the population of Ageo expanded rapidly in the late 20th century and has grown at a slower pace in the 21st.
| Year | Pop. | ±% |
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| 1920 | 19,912 | — |
| 1930 | 20,578 | +3.3% |
| 1940 | 23,551 | +14.4% |
| 1950 | 32,673 | +38.7% |
| 1960 | 38,889 | +19.0% |
| 1970 | 110,792 | +184.9% |
| 1980 | 166,243 | +50.0% |
| 1990 | 194,947 | +17.3% |
| 2000 | 212,947 | +9.2% |
| 2010 | 223,926 | +5.2% |
| 2020 | 226,940 | +1.3% |
Ageo-shuku, a post town on the Nakasendō highway flourished during the Edo period. Ageo's rail station opened in 1883. In 1889, Ageo-juku merged with the hamlets of Ageoshimo, Kashiwaza, Kasugayatsu and Yatsu to form the town of Ageo with the establishment of the modern municipalities system on April 1, 1889. The two towns of Hirakata and Haraichi and the three villages of Kamihira, Ōishi and Ōya merged with the town of Ageo on January 1, 1955, which was elevated city status on July 15, 1958. In the 1960s, four large-scale public housing complexes were established, forming new town developments which greatly expanded the city's population. A proposal to merge with the neighboring city of Saitama was rejected by referendum in 2001.
Ageo has a mayor-council form of government with a directly elected mayor and a unicameral city council of 30 members. Ageo, together with the town of Ina, contributes three members to the Saitama Prefectural Assembly. In terms of national politics, the city is part of Saitama 6th district of the lower house of the Diet of Japan.
Ageo was a noted agricultural area well into the 20th century, and various vegetables were cultivated. Agricultural land in the city area is declining, but in addition to pears, grapes and kiwis, various items such as tomatoes, cucumbers and spinach are produced. In the second half of the 20th century, numerous metallurgical and automobile factories were constructed, and UD Trucks and Bridgestone Cycle remain major employers. Due to its geographic location, Ageo is increasingly becoming a bedroom community for Saitama City and Tokyo.
Saitama New Urban Transit - New Shuttle
Hangzhou, Zhejiang, China,[4] friendship city since March 26, 2004
Lockyer Valley Region, Queensland, Australia [4]
Motomiya, Fukushima, Japan, friendship city since July 31, 2013
Media related to Ageo, Saitama at Wikimedia Commons
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