Where was Piranha 3D filmed?

Name: Piranha 3D
Released: 2010

2010 film directed by Alexandre Aja

Piranha 3D (2010) was filmed in Lake Havasu City and Lake Havasu, 2 places named in its Wikipedia article's Filming section, in the United States. Wikidata itself records the shoot only as Arizona. Each place says where its claim comes from.

Part of the Piranha film series

See them on the map → Wikipedia Source data

Places per Wikipedia's Filming section

Wikipedia’s Filming section names 2 places. Each links to the sentence that says so.

Towns & cities Lake Havasu City United States City in Mohave County, Arizona, United States
Landscapes & nature Lake Havasu United States Reservoir on the Colorado River in California and Arizona, United States

Recorded only at country level

Also filmed in Arizona, but the exact places are not known, so they are not on the map.

Filming locations that are mapped there: United States