Niiza (新座市, Niiza-shi) is a city in Saitama Prefecture, Japan. As of 1 January 2021^[update], the city had an estimated population of 166,208 in 76,639 households and a population density of 7300 persons per km².^[1] The total area of the city is 22.78 square kilometres (8.80 sq mi).

Quick Facts 新座市, Country ...

Niiza 新座市
City
Niiza City Hall
Flag Emblem
Location of Niiza in Saitama Prefecture
Niiza
Coordinates: 35°47′36.6″N 139°33′55.1″E
Country	Japan
Region	Kantō
Prefecture	Saitama
Town settled	March 1, 1955
City settled	November 1, 1970
Government
• Mayor	Masaru Namiki [ja] (from July 2016)
Area
• Total	22.78 km2 (8.80 sq mi)
Population  (January 1, 2021)
• Total	166,208
• Density	7,300/km2 (19,000/sq mi)
Time zone	UTC+9 (Japan Standard Time)
– Tree	Acer palmatum
– Flower	magnolia kobus
Phone number	048-477-1111
Address	1-1-1 Nobitome, Niiza-shi, Saitama-ken 352-8623
Website	Official website

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Niiza is located at the southernmost tip of Saitama Prefecture, and is essentially a suburb of the Tokyo conurbation. The entire city is located on the Musashino Plateau, with the Yanase River running through the western part of the city, and the Kurome River running through the eastern part of the city. Niiza includes the southernmost point of Saitama Prefecture, which faces Nishitōkyō of Tokyo.

Per Japanese census data,^[3] the population of Niiza has increased rapidly from the 1960s to the present day.

The area of modern Niiza has been settled since prehistoric times. It was part for Shinra County within Musashi Province in the Nara period. Shinra County (新羅郡) was originally written with the same kanji as the ancient Korean kingdom of Silla, and the area was settled by immigrants from Silla in 758 AD. The name was changed to Niikura County (新座郡) in the Heian period.^[4]

The town of Owada was created within Niikura District, Saitama with the establishment of the modern municipalities system on April 1, 1889. Niikura District was abolished in 1896, becoming part of Kitaasachi District. On March 1, 1955, Owada annexed the neighboring village of Katayama becoming Niiza Town, which was raised to city status on November 1, 1970.^[5]

Niiza has a mayor-council form of government with a directly elected mayor and a unicameral city council of 26 members. Niiza contributes two members to the Saitama Prefectural Assembly. In terms of national politics, the city is part of Saitama 4th district of the lower house of the Diet of Japan. In the 2021 Japanese general election, from Saitama 4th district, Yasushi Hosaka [ja] was elected.

Toppan printing has a large factory in Niiza, which is also home to a number of other light manufacturing, electronics and transportation/warehousing companies. However, due to its proximity to Tokyo, over a third of the workforce commutes daily, making Niiza largely a bedroom community.^{[citation needed]}

Colleges and universities:

• Atomi University
• Rikkyo University
• Jumonji University

Primary and secondary schools:

• Niiza has 17 public elementary schools and six public middle schools operated by the city government, and three public high schools operated by the Saitama Prefectural Board of Education. In addition, there are two private combined junior/senior high schools.

United States Air Force, Owada Communication Site

Owada Communication Site is former communication site of Imperial Japanese Navy.

Niiza is twinned with:

• Jyväskylä, Finland^[6] (1997)
• Nasushiobara, Tochigi, Japan (2000)
• Tōkamachi, Niigata, Japan (2002)
• Jiyuan, China,^[6] (2002)
• Neuruppin,^[6] Germany (2003)

• Heirin-ji, a large Rinzai Zen Buddhist temple. The temple is located in Nobidome, close to Niiza City Hall.

• Yoichi Furuya, former actor, known for his tenure as Jun Yazumi in Ultraman Tiga
• Umika Kawashima, actress
• Masaya Kikawada, actor
• Yoko Mitsuya, gravure idol^{[citation needed]}
• Yuto Otsuka (basketball, born 1990)
• Masaaki Taniai, politician^[7]

On April 7, 2003, Niiza gave the anime character Astro Boy an honorary citizenship to mark the date given as his birthdate in the original manga.^[8] Later in 2004, the theme music from the TV series would eventually be used to signal the departure of a train at JR Niiza Station on the JR Musashino Line.