New Castle, CO

View of New Castle, CO
Image credit: Jeffrey Beall / CC BY 4.0
Population
4,896
U.S. Census Population Estimates Program · 2025
Elevation
5,583 ft
Median Home Value
$454,300
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$1,393/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$80,084
U.S. Census American Community Survey 5-Year · 2024
General Quality
Overall rating out of 100

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About New Castle

Set along the Colorado River about twelve miles west of Glenwood Springs, New Castle gives residents a quiet small-town feel surrounded by red rock cliffs and mountain views. Home to roughly 5,000 people, the town offers a manageable commute to regional jobs across the Roaring Fork Valley. Main Street runs right through the center of town, connecting neighborhood spots, local eateries, and easy on-ramps to Interstate 70.

New Castle Colorado from The California Zephyr panoramio

New Castle started in the late 1800s as a mining hub, but today the community is known for its quiet neighborhoods and outdoor recreation. Locals spend weekends exploring nearby hiking and mountain biking trails, fishing the river, or enjoying the town's parks. With convenient local schools and a down-to-earth vibe, it provides a welcoming, family-friendly base in western Colorado.

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