to Boulder County
Colorado Genealogy Trails!
Volunteers Dedicated to Free
Our goal is to help you track your ancestors through time by
genealogical and historical data and placing it online for the free use
of all researchers.
county is available for adoption!
you are interested in joining Genealogy Trails as the host of any of our
county websites, view our Volunteer
Page for all the ins and outs of becoming a host.
(Enough knowlege to make a
basic webpage and a desire to transcribe data is required.)
Boulder County was one of the original 17
counties created by the Colorado legislature on November 1, 1861.
It was named after Boulder City and Boulder Creek, so named because of
the abundance of boulders in the area. It retains essentially the same
borders now as it was created with then, although a small portion of
its southeastern corner became part of the City and County of
Broomfield in 2001.
Towns and Other Populated Communities
* Allenspark * Altona * Ara *
Arrowood * Aspen Meadows * Balarat * Bark Ranch * Big Elk Meadows
* Bonanza Mountain Estates * Boulder * Boulder Junction * Canfield *
Cardinal (historical) * Caribou (historical) * Caribou City
* Coal Creek * Copperdale * Crescent * Crescent Village * Crisman *
Dominion * El Vado * Eldora * Eldorado Springs * Erie
* Ferncliff * Glendale * Gold Hill * Gold Run * Gooding * Grand Island
(historical) * Gunbarrel * Hessie (historical)
* Hidden Lake * Highland * Hygiene * Jamestown * Lafayette * Lake Shore
Park * Lazy Acres * Leyner * Liggett
* Longmont * Louisville * Lyons * Magnolia * Maple Grove * Marnett *
Marshall * Meeker Park * Miramonte* Morey
*Mountain Meadows * Nederland * Ninemile Corner * Niwot * Noland *
Orodell * Paragon Estates * Peaceful Valley
* Pine Brook Hill * Pine Valley * Pinecliffe * Pleasant View Ridge *
Pony Estates * Raymond * Ridgewood * Riverside
* Rock Creek * Rowena * Saint Ann Highlands * Salina * Seven Hills *
Silver Springs * Silver Spruce * Springdale
* Sugarloaf * Summerville * Sunnyside * Sunset * Sunshine * Superior *
Switzerland Park * Tabor * Tall Timber
* Tungsten (historical) * Valmont * Wallstreet * Ward * Whispering Pine