11217 ／ こうのすし
Saitama PrefecturePoppies bloom on the Arakawa riverbed.
Poppies on the Arakawa01 ／ Flowers
Flower growing in Kōnosu began in 1948, when farmers in the Teraya (寺谷) district took up pansies. Salvia and marigolds followed in 1962, and today the city has more than 150 flower-growing farms. In 2002 the Kōnosu Flower Center (鴻巣フラワーセンター), a flower market jointly funded by the city, opened.
02 ／ Hina dolls
Doll making in Kōnosu is said to have some 400 years of history, and in the Edo period the town was counted among the "three great hina doll markets of Kantō". A record from 1902 lists 31 doll makers and 300 craftsmen. Residents named their neighbourhood association Ningyō-chō (人形町, "doll town"), and in 1965 Ningyō (人形) became the official place name.
03 ／ River width
Japan's official "river width" is the distance between the levees, floodplain included. In February 2008 a survey by the Arakawa Upstream River Office found the Arakawa between Kōnosu and Yoshimi to be 2,537 m wide, the widest in Japan. The flowing water itself is usually only a few dozen metres across. Poppy fields spread over the broad floodplain, which hosts a fireworks display in autumn.
Living here
From Kōnosu Station on the JR Takasaki Line, trains run through on the Ueno-Tokyo Line to Tokyo Station in about 54 minutes, and Shōnan-Shinjuku Line rapid trains reach Shinjuku in about 53 minutes, both without changing. City Hall is about a 20-minute walk from the east exit.
−1.1% since 2015
119,594 → 116,828
67.32km² of it habitable
2024
2.5 people per household
2020
National average 60,630 yen
2023
6.2 per 10,000 people
2023
Population from 2005 onward (municipal boundary changed).2005-10-01 に編入合併（吹上町・川里町）。2005年調査から市域が変わっている。
These 3 items are waiting on a nationwide data source. We do not fill them with estimates.
ACCESS
Travel times follow 鴻巣市観光協会（一般財団法人・市の観光公式）「交通アクセス」の「JR上野東京ライン 東京から54分」「JR湘南新宿ライン 新宿から53分（快速）」と、埼玉県の移住サイト「住むなら埼玉」の鴻巣市のページの「東京駅→（JR上野東京ライン・高崎線）→鴻巣駅 約54分」。JR東日本の鴻巣駅の時刻表（2026年10月版・平日下り）の列車ごとの時刻で、東京15:39発→鴻巣16:32着（53分）・東京11:39発→鴻巣12:35着（56分）・東京12:59発→鴻巣13:56着（57分）、新宿13:49発の快速→鴻巣14:42着（53分）・新宿12:50発の快速→鴻巣13:41着（51分）を確かめた（どれも乗り換え無し） (checked 2026-09-24). They vary by time of day.
Shape
North to south
10.4km
See the town as it is now.
Source: Wikidata (P2002, P2003, P2013, P2397)
If something caught your eye, ask the town itself.
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