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Upcoming Events

Atascadero Historical Society's annual summer potluck

July 19, 2025

Annual summer potluck dinner to be held on July 19, 2025

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Visit Us Today!

Please Note: The Colony House Museum is now open on Wednesdays from 1 to 4 PM.

The museums are located at:

Colony House:

6600 Lewis Avenue

Atascadero, CA 93422

Historic City Hall: 

6500 Palma Avenue

Atascadero, CA 93422

Historic City Hall Tours

Discover the early history of Atascadero by booking a special docent led tour of the totally restored Historic City Hall Building, (circa 1914/1918 ). Tours are by appointment. To schedule a tour phone (805) 466-8341

To schedule a special tour: Click Here!