Penryn, CA

- Elevation
- 624 ft
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Penryn in context.
About Penryn
Penryn is an unincorporated community and census-designated place in Placer County, California, situated northeast of Rocklin. Established in 1864 around a historic granite quarry founded by Welsh immigrant Griffith Griffith and home to the Griffith Quarry Museum, the foothill community of approximately 1,114 is served by the Loomis Union School District for primary education.
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