Kamagaya
city in Chiba Prefecture, Japan
Kamagaya (鎌ヶ谷市, Kamagaya-shi) is a city located in Chiba Prefecture, Japan. As of 1 December 2020, the city had an estimated population of 109,941 living in 50,485 households and a population density of 5,200 persons per km2. The total area of the city is 21.08 km2 (8.14 sq mi).
Geography
Kamagaya is located in the northwestern corner of Chiba Prefecture, approximately 20 kilometers from the prefectural capital of Chiba. It is located on the Shimōsa Plateau, with an elevation of seven to thirty meters above sea level. The Otsu River, which flows into Lake Teganuma, is to the north, and the Okashiwa and Nego rivers, and tributaries of the Ebi River, flow into Tokyo Bay to the south. The 140th east meridian runs through the center of the city.
Neighboring municipalities
Chiba Prefecture
Funabashi
Ichikawa
Kashiwa
Matsudo
Shiroi
Climate
Kamagaya has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Kamagaya is 15.0 °C. The average annual rainfall is 1389 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.6 °C, and lowest in January, at around 4.4 °C.
Demographics
Per Japanese census data, Kamagaya's population experienced rapid growth in the late 20th century and has plateaued in the early 21st.
The public source identifies “Kamagaya” as city in Chiba Prefecture, Japan. This brief keeps that definition visible, then builds a research path around Kamagaya, city and Chiba.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Kamagaya”, the useful work is to connect “city in Chiba Prefecture, Japan” to the records capable of establishing context and consequence.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q387365. VIAF identifies the subject as 251162316. The Library of Congress control number is n83202671. Authority coordinates are 35.777, 140.001. 3 of 7 selected statements include explicit references; 1 carry qualifiers and 2 use preferred rank. The first chronological checks are 2020 and 1389.
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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Three-step research path
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Questions for further research
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This entry incorporates text from “Kamagaya” 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.