A Map Index of Nagano's Place Names: Readings Across Four Regions

Last updated: 2026-07-15

Pixel-art imaginary scene of Nagano's place names are hard to retain by reading alone

The same fragment of a reading can turn up again in a different, distant municipality within Nagano. Anchor a reading to a place on the map, and memorizing it slowly turns into indexing it.

Nagano is usually described in terms of four regions: Hokushin, Toshin, Chushin, and Nanshin. Looking at hard-to-read place names through that same grouping brings each reading's location into view alongside the reading itself.

Working from the official readings recorded in Japan Post's postal-code data and the Geospatial Information Authority's place-name records, this article lists notable neighborhoods region by region. It does not rank names by difficulty or repeat origin stories that cannot be confirmed.

Hokushin: the basin the Chikuma River shapes around Nagano City

Shinonoi-Utabi (篠ノ井有旅)

Nagano City (Shinonoi area)

A neighborhood in the Shinonoi area of southern Nagano City, read "Shinonoi-Utabi." "Shinonoi" alone is already a stretch for most readers, and "Utabi" follows it, making this one of the longest place names in the prefecture. Shinonoi was once its own municipality before merging into Nagano City, and it remains a railway junction linking northern and southern Nagano.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Amori (安茂里)

Nagano City

A district along the Susobana River just west of central Nagano City, read "Amori." Compressing three characters into a short reading is a pattern shared with Mayumida below, elsewhere in the same city. It sits just across the Sai River from the city center.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Mayumida (檀田)

Nagano City

A neighborhood in southern Nagano City, close to Shinonoi, read "Mayumida." The first character is usually read "dan" on'yomi, but here it takes the kun'yomi for "mayumi," the spindle tree once used for bows. Defaulting to the common on'yomi will not get a reader to this name.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Tsumashina (妻科)

Nagano City

A neighborhood close to the Nagano City government offices, read "Tsumashina." Reading the second character as "shina" also turns up in Chushin, in Azumino City's Akashina and Toyoshina, and in Nanshin, in Iida City's Dashina, a reading thread that spans three of the prefecture's four regions and can be placed on the map alongside them.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Kuiseke (杭瀬下)

Chikuma City

A neighborhood in Chikuma City, just south of Nagano City, read "Kuiseke." The final character is read "ke" rather than "ge," matching a lowland stretch along the Chikuma River. It marks the southern gateway to the Nagano basin.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Toshin: the plateau linking Saku, Ueda, and Karuizawa

Iwamurada (岩村田)

Saku City

The core of central Saku City, read "Iwamurada." It grew around the jin'ya seat of the Edo-period Iwamurada domain, ruled by the Naito clan, and remains Saku City's administrative and commercial center today. The reading follows the characters closely; the name works better as an anchor point for placing the Saku basin on the map.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Shionada (塩名田)

Saku City

A neighborhood in southern Saku City along the Chikuma River, read "Shionada." Reading the last two characters together as "nada" parallels the "murada" ending of Iwamurada in the same city. It once held a post station on the Nakasendo, on the low ground beside the river.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Mitakedō (御嶽堂)

Ueda City

A neighborhood in southern Ueda City, read "Mitakedō." Most people who see the first two characters think first of Mount Ontake in the Kiso region, read "Ontake"; the same two characters are read "Mitake" here, which is where the confusion sets in. It lies southeast of central Ueda.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Motounno (本海野)

Ueda City

A neighborhood on the eastern edge of Ueda City, near the border with Tomi City, read "Motounno." Reading the middle two characters as "unno" is a convention shared with the well-known post town of Unno-juku, on the old Hokkoku Kaido in neighboring Tomi City, a reading that spans both cities in this part of Toshin.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Hocchi (発地)

Karuizawa Town, Kitasaku District

A neighborhood in southern Karuizawa Town, read "Hocchi," with the first character contracted into a sokuon. It lies well south of the old resort core of Karuizawa, in the part of town that links back toward the Saku basin.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Chushin: the valley corridor from Matsumoto and Azumino to Kiso

Akashina-Nanaki (明科七貴)

Azumino City

A neighborhood in northern Azumino City, read "Akashina-Nanaki." Reading the first character as "shina" is a thread shared with Nagano City's Tsumashina in Hokushin and Iida City's Dashina in Nanshin, and Akashina is the best-known instance of it in Chushin, lending its name to a station on the JR Shinonoi Line.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Toyoshina-Takibe (豊科高家)

Azumino City

A neighborhood in central Azumino City, read "Toyoshina-Takibe." The first two characters share the same "shina" reading as Akashina within the same city. "Takibe," for the last two characters, compresses "taka" sharply, a further step beyond the "shina" pattern it sits next to.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Sajiki (桟敷)

Shiojiri City

A neighborhood in northern Shiojiri City, read "Sajiki," the same word used for reserved theater seating in everyday Japanese, so the reading itself is not the obstacle here. What stands out is the first character read alone as "sa," a reading rarely seen outside this compound. It sits at the southern edge of the Matsumoto basin, just north of central Shiojiri.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Tadachi (田立)

Minamikiso Town, Kiso District

A neighborhood at the southern tip of the Kiso valley, in Minamikiso Town, read "Tadachi," with the second character voiced rather than left as "tachi." It sits at the corner of Chushin closest to the Gifu prefectural border, where the valley's chain of post towns comes to an end.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

O (麻)

Omi Village, Higashichikuma District

The central place name of Omi Village, roughly midway between Matsumoto and Nagano on the old Zenkoji Kaido, a post-town route, read with a single mora, "O." A one-character name read this briefly is rare even within the prefecture; paired with the village's own name, Omi, the reading and its location settle into memory together.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Nanshin: the valley corridor from Suwa and Ina to Iida

Dashina (駄科)

Iida City

A neighborhood in northern Iida City, read "Dashina." The same "shina" reading appears in Nagano City's Tsumashina in Hokushin and Azumino City's Akashina and Toyoshina in Chushin, evidence that this one reading spans three of the prefecture's four regions. It lies toward the northern side of central Iida.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Zakōji (座光寺)

Iida City

A neighborhood at the northern edge of Iida City, near the Matsukawa River, read "Zakōji." The last two characters read together as "kōji," worth noting on its own. It sits close to where the Matsukawa meets the Tenryu River, at the edge of the Iida basin.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Toyohashi (樋橋)

Shimosuwa Town, Suwa District

A neighborhood on the north shore of Lake Suwa, in Shimosuwa Town, read "Toyohashi," identical to the reading of Toyohashi City in Aichi Prefecture despite sharing none of its kanji. It is a reminder that some place names arrive at a reading first and let the kanji follow, while others work the other way around. It sits in the post town where the Nakasendo and Koshu Kaido routes meet.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Okkoto (乙事)

Fujimi Town, Suwa District

A neighborhood south of the Suwa basin, in Fujimi Town, read "Okkoto," with the first character contracted into a sokuon. It sits on the highland skirting Mount Yatsugatake, just before Nanshin gives way to the Ina valley near the prefectural border.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

Seinaiji (清内路)

Achi Village, Shimoina District

A neighborhood in the southwest of the Ina valley, in Achi Village, read "Seinaiji," with the last character read "ji." The former village of Seinaiji merged into Achi Village in 2009 and lies along a side route of the Nakasendo that once carried travelers over the pass between the Kiso valley and the Ina valley.

Source:Japan Post -- Postal Code Data Download (Nagano Prefecture, small-kana notation)Geospatial Information Authority of Japan -- GIS and National Land Information (place-name data)

FAQ

What do Hokushin, Toshin, Chushin, and Nanshin refer to?

They are the everyday regional groupings used within Nagano, based on terrain and transport links: Hokushin (the Nagano basin), Toshin (Saku and Ueda), Chushin (Matsumoto, Azumino, and Kiso), and Nanshin (Suwa, Ina, and Iida). The same four names appear in weather forecasts and administrative documents.

Why does the same reading fragment show up in more than one municipality?

No single confirmed reason turns up in the source material, but the pattern itself is observable: "shina," for instance, appears across Hokushin, Chushin, and Nanshin alike. This article treats that distribution as a map-reading aid rather than an explanation.

How is this different from a ranking of hard-to-read place names?

It is not a ranking. Rather than comparing names by how difficult they are, this article ties each reading to a location and places it on the map.

How can I check the reading of a neighborhood not listed here?

The two sources listed with each entry above are the public records behind this article. Note which of the four regions a name belongs to, and it becomes a handle for the next time you look at the map.

Sources & references

* Where origins are debated, we note that. Readings and origins draw on public sources; please check each source for the latest.

Written by: LoreMania editorial team / Source verification: noted per item

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