Towns & cities
Namyangju
City in South Korea
Wikipedia names Namyangju as where 3 films and series were filmed; each title’s page links to the sentence that says so. Wikidata records no shoot here yet. Newspapers, film offices and archives name more, listed below.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Namyangju. Each title’s page links to the sentence that says so.
From published sources
Newspapers, film offices, archives and city filming permits say these were filmed at Namyangju. Each source is linked.
Filming locations nearby
-
Towns & cities
Pyeongnae-dong
South Korea · 2 km north-east
-
Towns & cities
Jingeon
South Korea · 3 km north-west
-
Towns & cities
Wabu
South Korea · 6 km south-east
-
Towns & cities
Onam
South Korea · 6 km north
-
Landmarks & buildings
Deokso Middle School
South Korea · 6 km south
-
Towns & cities
Guri
South Korea · 8 km south-west