Which McDonald's restaurant is the oldest still operating at its original location?

Downey McDonald's is the oldest McDonald's restaurant still operating at its original location.

The restaurant opened in Downey, California, in 1953. It retains the early McDonald's building style, including the prominent golden arches associated with the chain's formative visual identity.

Downey is not the same site as the McDonald brothers' original San Bernardino restaurant or Ray Kroc's first McDonald's restaurant in Des Plaines, Illinois. Those locations are also important to McDonald's history, but they do not hold the same distinction of being the oldest surviving restaurant at its original site.

The Downey location became historically significant because its preserved architecture shows how McDonald's branding looked before the later, more standardized restaurant designs spread internationally.