United States · Washington
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From Wikimedia Commons (CC-BY-SA where not otherwise stated).
Photo by United States National Park Service via Wikimedia Commons (Public domain)

Photo by United States National Park Service via Wikimedia Commons (Public domain)
Photo by United States National Park Service via Wikimedia Commons (Public domain)

Photo by Llachglin at en.wikipedia via Wikimedia Commons (Public domain)
Photo by National Archives at College Park - Still Pictures (RDSS) via Wikimedia Commons (Public domain)
Photo by Unknown authorUnknown author or not provided via Wikimedia Commons (Public domain)
Photo by Unknown authorUnknown author or not provided via Wikimedia Commons (Public domain)
Photo by Unknown authorUnknown author or not provided via Wikimedia Commons (Public domain)
Camp Harmony is the unofficial euphemistic name of the Puyallup Assembly Center, a temporary facility within the system of internment camps set up for Japanese Americans during World War II. Approximately 7,390 Americans of Japanese descent from Western Washington and Alaska were sent to the camp (nearly doubling the town of Puyallup's population of 7,500) before being transferred to the War Relocation Authority camps at Minidoka, Idaho, Tule Lake, California and Heart Mountain, Wyoming.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
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Current population
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Occupancy
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Year opened
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Operational
Figures from official sources · verified 29 May 2026 · methodology
Operator
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Population held
Mixed/unknown
Opened
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Region
Washington
Security level
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Death-row facility
No
No conditions summary available yet.
No visiting information available.
No mailing information available.
Contact the operator's website for inmate-specific procedures.
No major issues documented in our database.
Mako Nakagawa, born Masako Takahashi, (February 1, 1937 â April 24, 2021) was a Japanese American educator, director of the Japanese American Cultural Heritage Program and the Rainbow Program, and influential member of the Japanese American Citizen's League.
Mary Mon Toy (June 3, 1916 â December 7, 2009) was a Japanese American actor, showgirl, and secretary.
Source: Wikidata + Wikipedia.
No public contact details available.
Derived signal — not a judgement. How it's calculated
Same country, matched on type + security level where possible.
How many of our profile fields are populated. We surface this so families and researchers know the limits.
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Camp Harmony. Retrieved July 23, 2026, from https://worldprisons.com/prisons/camp-harmony
"Camp Harmony." World Prisons. Accessed July 23, 2026. https://worldprisons.com/prisons/camp-harmony.
@misc{worldprisons-camp-harmony,
author = {{World Prisons}},
title = {Camp Harmony},
year = {2026},
url = {https://worldprisons.com/prisons/camp-harmony},
urldate = {2026-07-23}
}