Nagasaki長崎県

Nagasaki-ken, ながさきけん. The name ends in 県 (ken), prefecture.

Nagasaki has more islands than any other prefecture. It was Japan's main point of contact with Europe during the Edo period.

Open Nagasaki on the map

Facts

Japanese name
長崎県
Reading
Nagasaki-ken / ながさきけん
Region
Kyūshū-Okinawa 九州・沖縄
Capital
Nagasaki 長崎市
Population
1,312,317 (2020 census)
Area
4,131 km²
Density
318 people per km²
Municipalities
21: 13 cities and 8 towns
Designated cities
None
Districts (郡)
4
Codes
JIS 42, ISO 3166-2 JP-42
Website
www.pref.nagasaki.jp
Tree
hinoki cypress and camellia ヒノキ、ツバキ
Flower
Unzen azalea 雲仙ツツジ
Bird
mandarin duck オシドリ

The tree, flower, and bird are the prefectural symbols, chosen by ordinance. Every prefecture has all three.

The most populous municipalities

MunicipalityPopulationkm²Share
Nagasaki City長崎市409,118405.8631.2%
Sasebo City佐世保市243,223426.0118.5%
Isahaya City諫早市133,852341.7910.2%
Omura City大村市95,397126.737.3%
Shimabara City島原市43,33882.963.3%
Minamishimabara City南島原市42,330170.133.2%
Unzen City雲仙市41,096214.313.1%
Nagayo Town長与町40,78028.733.1%
Goto City五島市34,391420.122.6%
Hirado City平戸市29,365235.122.2%

2020 census. Share is the municipality's part of the prefecture's population. The other 11 are listed below.

How an address here begins

長崎県長崎市…

Nagasaki-ken, Nagasaki-shi, …

The prefecture name is written first, then the municipality name. The guide explains the rest of the address, and the map finds any address you paste into it.

Neighbouring prefectures

Every municipality in Nagasaki市区町村

21 local governments, each with its own mayor and assembly. Each has a page with its population, area, neighbours, and boundary on the map.

Districts, with their towns and villages郡 町 村

A district is a name that groups towns and villages in an address. It has no office and no election. Each town and village in it is a government.

Questions about Nagasaki

Is Nagasaki a city or a prefecture?
Nagasaki (長崎県) is a prefecture, one of Japan's 47. Nagasaki City (長崎市) is a municipality inside it and its capital. On its own, the name usually means the city. With 県 on the end it means the prefecture.
What is the capital of Nagasaki?
Nagasaki City (長崎市). The prefectural office is there. It is also the largest municipality in the prefecture.
What does 県 mean in 長崎県?
県 (ken) means prefecture. It is the ordinary word for prefecture, used by 43 of the 47. The other four are Tokyo (都), Hokkaidō (道), Osaka, and Kyoto (府), which are the same kind of government with a different word at the end of the name.
How many municipalities are in Nagasaki?
21: 13 cities and 8 towns. Each is a local government with its own mayor and assembly. The towns and villages are grouped into four districts (郡), names used in addresses, not governments.
What is the population of Nagasaki?
1,312,317 at the 2020 census, on 4,131 km², which is 318 people per km². Nagasaki is the 30th most populous of the 47 prefectures and the 37th largest by area.
Which prefectures border Nagasaki?
One prefecture: Saga (佐賀県). Borders across water are not counted.
What region is Nagasaki in?
Kyūshū-Okinawa (九州・沖縄). A region is a customary grouping of prefectures, not a government, so Nagasaki elects a governor and an assembly but the region elects nothing.
How is Nagasaki written in Japanese?
長崎県, read Nagasaki-ken and written ながさきけん in hiragana. The last character, 県, is the word for prefecture, and the name is often used without it in English.
How does an address in Nagasaki begin?
With the prefecture name, then the municipality name: 長崎県長崎市… (Nagasaki-ken, Nagasaki-shi, …). After that are written the named area, the chōme, the block, and the building number.
What is the largest city in Nagasaki?
Nagasaki City (長崎市), with 409,118 people at the 2020 census. It is also the capital. The three most populous municipalities are Nagasaki City (長崎市, 409,118), Sasebo City (佐世保市, 243,223), and Isahaya City (諫早市, 133,852).
What are the symbols of Nagasaki?
The prefectural tree is the hinoki cypress and camellia (ヒノキ、ツバキ), the flower the Unzen azalea (雲仙ツツジ), and the bird the mandarin duck (オシドリ). Nagasaki chose them by ordinance, as every prefecture has.

Boundaries: MLIT 国土数値情報. Population: 2020 Population Census (令和2年国勢調査). Area: Geospatial Information Authority of Japan (全国都道府県市区町村別面積調, 2020). Municipality counts are from the boundary data on the map. Website and symbols: the prefecture's Japanese Wikipedia article, read in September 2026.