Translation guide
In Japanese, the concept of a 'metropolitan area' is most commonly expressed by referring to the specific city and its surrounding region, or by using terms that denote a large urban zone. The most natural translation depends on context: whether you mean a general large city area, the capital region, or a specific named metro area.
To refer to a major city and its surrounding urbanized region in a general sense.
The standard term for 'metropolitan area' in a general, statistical, or planning context. It refers to a city and its economically/socially integrated surrounding areas.
東京都市圏の人口は約3700万人です。
The population of the Tokyo metropolitan area is about 37 million.
Literally 'large city area', used for major metropolitan areas. Slightly more emphatic than 都市圏.
大阪大都市圏は西日本最大の経済圏です。
The Osaka metropolitan area is the largest economic zone in western Japan.
Specifically the 'capital region', usually referring to the Tokyo metropolitan area. Use only when talking about the capital city's metro area.
首都圏の鉄道網は非常に発達している。
The railway network in the metropolitan area (capital region) is highly developed.
To talk about the metro area of a particular city, like 'the Tokyo area' or 'the Osaka area'.
Attach 圏 (けん) to a city name to mean 'the [City] area/metropolitan area'. Common in news and formal contexts.
名古屋圏の経済は自動車産業に支えられている。
The economy of the Nagoya metropolitan area is supported by the automobile industry.
More explicit than just 圏, often used in statistics or academic writing.
福岡都市圏は近年人口が増加している。
The Fukuoka metropolitan area has been growing in population in recent years.
Casually talking about the general area around a big city.
Means 'the suburbs/outskirts of [City]'. Used in everyday conversation to refer to the broader area around a city, not strictly the metropolitan statistical area.
東京近郊に住んでいます。
I live in the Tokyo metropolitan area (suburbs).
Means 'the vicinity of [City]'. More vague than 近郊, can include rural areas.
大阪周辺には観光地が多い。
There are many tourist spots in the Osaka metropolitan area (surrounding region).
The katakana word メトロポリタンエリア is understood but sounds unnatural in most contexts. Use 都市圏 or a city name + 圏 instead.
東京都市圏
Tokyo metropolitan area
都市圏 is a formal, statistical term for a metropolitan area. 近郊 refers to the suburbs and commuter belt, often used in real estate. 周辺 simply means 'surrounding area' and is less precise.