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Four Bedroom Apartments for Rent in Boulder County, CO

135 Rentals
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  10. Call for Rent

    The Mansion

    1101 University Ave, Boulder, CO 80302
  32. 4 BEDS, 2 BATHS
    $6,950+
    6 BEDS, 2 BATHS
    $7,150+

    1224 11th St

    1224 11th St, Boulder, CO 80302
  34. 5 BEDS, 2 BATHS
    $4,800

    265 31st St

    265 31st St, Boulder, CO 80305
Showing 42 of 91 results, Page 1 of 3

Boulder County, Colorado

Boulder County is the sixth most populous of all 64 Colorado Counties. It’s also home to the Colorado Chautauqua, founded in 1898 and the only Chautauqua west of the Mississippi River still in unbroken operation since the heyday of the Chautauqua Movement in the 1920s. One might think that’s quite an accomplishment. One might also wonder, “What the heck is a Chautauqua?”

“A Chautauqua is the most American thing about America, its history and traditions,” said President Theodore Roosevelt; and at the time he said it, he may have been right. But today the Chautauqua movement is unfamiliar to most of us.

From the 1880s through the 1920s city dwellers, lacking air conditioning, left town during the summer to spend a few months in the mountains, primarily to escape the summer heat; but many also wanted to improve physical and spiritual well-being. The Chautauqua combined a summer retreat with eight-week programs offering secular and religious instruction as well as lectures by authors, explorers, musicians and political leaders.

Chautauquas were attended by thousands each year. The combination of education and entertainment in a pristine mountain setting became wildly popular, and spread throughout America and Europe during the latter part of the 19th century. Despite this immense popularity, only thirteen original Chautauquas in the world are still active today. The Colorado Chautauqua was designated a National Historic Landmark in 2006.

Boulder City was organized in 1859; Boulder County was originally called Jackson County by the Jefferson Territorial officers who authorized nine counties in 1860; it was renamed Boulder County; it was renamed Boulder County in 1861.

The county seat is the City of Boulder. According to the census, the county’s population is just over 300,000 residents. Boulder County retains essentially the same borders it had in 1861, with a total area of 751.37 square miles. Bordering counties are Larimer County, to the north; Weld County, to the east; Broomfield, to the southeast; Jefferson, to the south; Gilpin, to the south and Grand County to the west. The median income for a household in the county was $55,861.

Although Rocky Mountain National Park spans across several counties, the park’s highest summit is located in Boulder County. Eldorado Canyon State Park is also located here.

Top Budget-Friendly Neighborhoods in Boulder

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Data provided by GreatSchools.org 2025 © 2025. All rights reserved.

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