Niiza, Saitama
city in Saitama Prefecture, Japan
Niiza (新座市, Niiza-shi) is a city in Saitama Prefecture, Japan. As of 1 January 2021, the city had an estimated population of 166,208 in 76,639 households and a population density of 7300 persons per km2. The total area of the city is 22.78 square kilometres (8.80 sq mi).
Geography
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.
Surrounding municipalities
Saitama Prefecture
Asaka
Miyoshi
Shiki
Tokorozawa
Tokyo Metropolis
Higashikurume
Kiyose
Nerima
Nishitokyo
Climate
Niiza has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Niiza is 14.9 °C. The average annual rainfall is 1449 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 4.1 °C.
Demographics
Per Japanese census data, the population of Niiza has increased rapidly from the 1960s to the present day.
History
The area of modern Niiza has been settled since prehistoric times.
The public source identifies “Niiza, Saitama” as city in Saitama Prefecture, Japan. This brief keeps that definition visible, then builds a research path around Niiza, Saitama and city.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Niiza, Saitama”, the useful work is to connect “city in Saitama Prefecture, Japan” to the records capable of establishing context and consequence.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q386691. VIAF identifies the subject as 254403481. Authority coordinates are 35.794, 139.565. 2 of 5 selected statements include explicit references; 1 carry qualifiers and 1 use preferred rank. The first chronological checks are 2021 and 1449.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
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This entry incorporates text from “Niiza, Saitama” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.