Towns & cities
Hokuto
City in Hokkaidō, Japan
Wikipedia names Hokuto as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Hokuto. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landmarks & buildings
Kanemori Red Brick Warehouse
Japan · 8 km south-east
Building in Hakodate, Hokkaido Prefecture, Japan
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Towns & cities
Hakodate
Japan · 9 km south-east
City in Hokkaido, Japan
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Castles & palaces Goryōkaku
Japan · 9 km east
Fortress
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Landmarks & buildings Iai Girls' Junior & Senior High School
Japan · 10 km south-east
Japanese private school in Hakodate, Hokkaido
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Towns & cities
Oma
Japan · 40 km south-east
Town in Shimokita District, Aomori Prefecture, Japan