Boulder County

Welcome to our Boulder County family history research page. Here you'll find record collections, history, and genealogy resources to help you trace your Boulder County ancestors.


Data Collections
Sorted by Boulder Birth, Marriage & Death, including Parish
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Colorado, U.S., Compiled Marriages from Mesa, Arapahoe and Boulder Counties, 1859-190034,224

Data Collections
Sorted by Boulder Schools, Directories & Church Histories
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Boulder County directory, 1896329
Boulder city directory.184

Data Collections
Sorted by Boulder Stories, Memories & Histories
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Clear Creek and Boulder Valleys, Colorado History, 1880802