Jikkasegi irrigation channel, Azumino City
Article

20220 / あづみのし

Nagano Prefecture

Azumino City

A channel that drops over 30 cm per km.

Jikkasegi irrigation channel

Photo by Qurren (CC BY-SA 3.0)

01 / Oo-ruri-shijimi

In Horigane, a channel that warmed cold irrigation watermade wide ridges where kurara grew.

The Azumino oo-ruri-shijimi butterfly (Shijimiaeoides divinus) was designated a city natural monument in 2022, the first animal so designated. At the Iwahara weir in Horigane, cold water drawn from the Karasu River was warmed in a narrow channel called a nurume before it reached the rice fields, and the wide ridges left around the fields grew kurara, the plant its larvae eat.

  • City natural monument, designated March 30, 2022
  • Larvae eat only kurara
  • Records stopped in 1991; rediscovered in 1994

02 / Akashina Temple Ruins

Eight-petal eave tiles were castin the same mold as those of a ruined temple in Gifu.

Akashina Temple Ruins in Azumino City
Photo by Saigen Jiro (Public domain)

Akashina Haiji is thought to have been founded in the late 7th century, judging from its roof tiles with plain eight-petal lotus patterns. Its eight-petal eave-end tiles were made in the same mold as those of a ruined temple in Gifu Prefecture, and tiles from the same mold also came out of a kiln site in Yamanashi Prefecture. "Akashina no Takara" (Treasures of Akashina) records that tiles were certainly supplied from the Sakurazaka kiln site.

  • Thought to date from the late 7th century
  • Eave-end tiles with 8 petals
  • No building remains found

03 / Dosojin

Guardian dosojin stones of each kido neighborhoodnumber over 600 in the city.

Dosojin in Azumino City
Photo by Qurren (CC BY-SA 4.0)

A kido is a neighborhood group whose members keep up close everyday ties. The city's regional plan says dosojin number over 600 and that four have been designated as cultural properties. The Kikkamon Dosojin in Honmura, Toyoshina, is a paired-figure stone of a type said to have been carved in large numbers in the Minami-Azumi area from the 1840s to the 1850s.

  • Over 600 dosojin (city regional plan)
  • 4 city-designated dosojin
  • Kikkamon Dosojin city-designated in 2008

Azumino City from the sky

Now and 1974–78. Tap a photo to zoom in.

Wide (about 6 km across)

Close (about 1.5 km across)

Now (shot September–November 2021)Shot 1974–78

Source: Geospatial Information Authority of Japan (GSI) GSI Tiles(全国最新写真(シームレス)/国土画像情報(第一期:1974〜1978年撮影))

Open in GSI Maps (now)Open in GSI Maps (1974–78)

Living here

From Shinjuku, the Azusa limited express arrives with no change.

  • about 90,000 people

The city was formed in 2005 by the merger of the towns of Toyoshina, Hotaka and Akashina and the villages of Misato and Horigane. The gateway, Toyoshina Station, is the station the city's own site describes as about a five-minute walk from the main city hall, and the limited express Azusa No. 5 from Shinjuku arrives there without a change.

People living here
94,222people
20052020

−1.1% since 2015

96,266 → 94,222

Area
331.78km²

139.25km² of it habitable

2024

Households
36,491households

2.6 people per household

2020

Rent (average for rentals)
45,586yen

National average 60,630 yen

2023

Healthcare
5 hospitals / 81 clinics

9.1 per 10,000 people

2023

Area331.78km²Habitable land139.25km² / 42%
Area and habitable land at the same scalee-Stat B1101 / B1103
Children waiting for childcare
—18 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.

Azumino City in Japan36.304°N 137.906°E
OsakaAzumino City
Toyoshina Station
豊科駅2021
  • to ShinjukuJR limited express174min

Travel times follow JR東日本 列車の停車駅一覧(2026年10月版・取得2026-10-21):特急あずさ5号(新宿-白馬)の平日運転ページ https://timetables.jreast.co.jp/2610/train/110/111361.html と土曜・休日運転ページ https://timetables.jreast.co.jp/2610/train/110/111371.html。信濃大町駅の時刻表(平日・土曜休日とも 特あ 11:15発)で列車を特定 (checked 2026-10-21). They vary by time of day.

Shape

Borders 6 municipalities.

Territory of Azumino City
Boundaries: National Land Numerical Information (Administrative Area Data), MLIT. Processed by Machigatari.Lakes: National Land Numerical Information (Lake Data), MLIT. Processed by Machigatari. Prepared with the approval of the Director-General of the Geospatial Information Authority of Japan, using its Digital Map 25000 (Spatial Data Framework) and Digital Map 25000 (Place Names and Public Facilities). (承認番号 平27情使、第585号)

Azumino City isthis kind of town.

  1. 01Jikkasegi is an irrigation channel of about 15 km opened in 1816 by people of the surrounding villages with hoes and pickaxes; the city's public newsletter records that it was completed in just three months on a gentle slope of a little over 30 cm per kilometer
  2. 02The city natural monument, the Azumino oo-ruri-shijimi butterfly, lives in the rice-field environment created when the channels were opened; the roof tiles of Akashina Haiji, thought to date from the late 7th century, share molds with sites in Gifu and Yamanashi Prefectures; and dosojin of each kido neighborhood number over 600
  3. 03The Sonehara family house in Shinya, presumed to date from the mid-17th century, was designated a national Important Cultural Property in 1973; the gateway is Toyoshina Station, and the limited express Azusa from Shinjuku arrives without a change

If something caught your eye, ask the town itself.