Douglas County originally stretched from the Rockies to the State of Kansas border when it was one of the original 17 counties in the Colorado Territory, but in 1874 more counties were created and most of the eastern edges of Douglas County became Elbert County. That same year the county seat became Castle Rock, after both Franktown and California Ranch had their times as county central. For a long time Douglas County retained its rural nature, with many ranches and a few small towns making up its population base, until the announcement, in the 1980s, that Highlands Ranch would be developed into a community with perhaps as many as 50,000 people over the next 30 years. That and more came, and since then the towns of Lone Tree, Parker and Castle Rock have also blossomed into major communities and at the time of the 2010 US Census Douglas County had a population of more than 285,000 – 64% growth in 10 years, making it one of the fastest-growing counties in all of America. But some traditions die hard: Douglas County remains high on the list of horse ownership, with more horses per capita than any county outside of Kentucky.
Allstar Electrical Services makes regular visits to Douglas County and all of its communities for both commercial and residential electrical work.