Towns & cities
Walnut Creek
City in Contra Costa County, California, United States
Wikipedia names Walnut Creek as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.
1 place inside Walnut Creek has a page of its own: listed below. Everything shot at it is already named above, recorded against Walnut Creek as well.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Walnut Creek. Each title’s page links to the sentence that says so.
The PrincipalComedy film1987
Filming locations inside Walnut Creek
1 place inside Walnut Creek, with a page of its own. Every production shot at it is already listed above, because Wikidata records it against Walnut Creek too.
Filming locations nearby
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Landmarks & buildings Northgate High School
United States · 5 km east
Public high school located in Walnut Creek, California, United States
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Towns & cities
Concord
United States · 9 km north
City in Contra Costa County, California, United States
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Landmarks & buildings
Buchanan Field Airport
United States · 9 km north
County-owned public-use airport in Contra Costa County, California, United States
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Towns & cities
Contra Costa County
United States · 10 km east
County in California, United States
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Towns & cities
Danville
United States · 11 km south-east
Incorporated town in Contra Costa County, California, United States
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Towns & cities
Oakland Hills
United States · 14 km south-west
Human settlement in Oakland, California, United States of America