Kazo City

A 100-metre carp streamer swims in the sky.

Jumbo Koinobori

Photo by 舟太郎 (CC BY-SA 4.0)

01 ／ Carp streamers

A side job for lantern and umbrella makersbecame Japan's top producer.

Kazo's carp streamers, koinobori (こいのぼり), began in the early Meiji era as a side job for lantern and umbrella craftsmen. After the Great Kantō Earthquake, orders poured in from Tokyo wholesalers, and before the Second World War the town led Japan in output. The 100-metre Jumbo Koinobori (ジャンボこいのぼり), first made in 1988, is now in its fourth generation and swims over the Tone River banks every May at the Kazo Citizens' Peace Festival (加須市民平和祭).

Began in the early Meiji era
Top producer before the war
100 m long, 4th generation

02 ／ Udon

The date on a lord's thank-you letterbecame "Udon Day".

Kazo's hand-made udon is said to have begun about 300 years ago, when shops fed travellers at the Tone River ferry and worshippers at the gate of Sōganji Temple (總願寺) in Fudōoka. The temple keeps a thank-you letter from the lord of Tatebayashi Castle for a gift of Kazo udon flour, dated 25 June. The city made that date "Kazo City Udon Day" by ordinance.

About 300 years of history
Udon Day on 25 June
Set by city ordinance

03 ／ Tripoint

In the middle of the rice fields,three prefectures meet.

The point where Tochigi, Gunma and Saitama meet lies in a paddy field about 500 metres southeast of the Michi-no-Eki Kazo Watarase (道の駅かぞわたらせ) roadside station. It was once in the Watarase River, but river works from the Meiji to the Taishō era moved the channel, and it now sits where three ditches meet. A 2016 survey found a concrete marker post there, confirming the tripoint.

About 500 m from the roadside station
Confirmed by a 2016 survey
Tochigi, Gunma and Saitama

Living here

More people moving in than out, ten years running.

about 110,000 people

According to the city's population figures, more people have moved in than out every year for ten years since fiscal 2016. In fiscal 2025, 5,010 moved in and 4,236 moved out. The city has four stations: Kazo and Hanasaki on the Tobu Isesaki Line, and Shin-Koga and Yagyu on the Tobu Nikko Line. City Hall is a 15-minute walk from the north exit of Kazo Station.

People living here: 111,623people
Area: 133.3km²
Households: 44,295households
Rent (average for rentals): 49,132yen
Healthcare: 6 hospitals ／ 49 clinics

Area and habitable land at the same scalee-Stat B1101 / B1103

Population from 2010 onward (municipal boundary changed).2010-03-23 に新設合併（騎西町・北川辺町・大利根町）。2010年調査から市域が変わっている。

Children waiting for childcare: —23 nurseries and similar
Home purchase subsidy: —
Average annual temperature: —

These 3 items are waiting on a nationwide data source. We do not fill them with estimates.

ACCESS

Where you can go from here.

Kazo City in Japan36.131°N 139.602°E

to AsakusaTobu Skytree Line and Isesaki Line70min

Travel times follow 市公式「加須市への交通アクセス」（2017-12-20 更新）の「東武伊勢崎線浅草駅から加須駅まで約70分」。2026-09-28（月）の経路検索（Yahoo!路線情報）で、いまのダイヤでも乗り換え無しの列車が走っていることを確かめた (checked 2026-09-24). They vary by time of day.

Shape

Borders 7 municipalities across 3 prefectures.

Territory of Kazo City

Boundaries: National Land Numerical Information (N03)

North to south

16.0km

Saitama Prefecture: 久喜市, 羽生市, 鴻巣市, 行田市
Gunma Prefecture: 板倉町
Ibaraki Prefecture: 古河市
Tochigi Prefecture: 栃木市

Kazo City isthis kind of town.

01A town that has made carp streamers since the early Meiji era, where the 100-metre Jumbo Koinobori swims over the Tone River banks every May
02A town of hand-made udon said to go back about 300 years, which named 25 June "Kazo City Udon Day" after the date on a castle lord's letter
03In the rice fields at its northern edge lies the tripoint of Tochigi, Gunma and Saitama, next to the Watarase Retarding Basin

See the town as it is now.

Instagram@city.kazo ↗

Source: Wikidata (P2002, P2003, P2013, P2397)

If something caught your eye, ask the town itself.

Kazo City official site ↗Wikipedia ↗