Jefferson County, established in 1861 and often called “Jeffco,” borders the west side of Denver and is one of Colorado’s most populous and diverse regions. The county seat is Golden — a historic mining town turned modern hub that also hosts the Coors Brewery and Colorado School of Mines. Other major communities include Lakewood, Arvada (partial), Wheat Ridge, Evergreen, Morrison, and Conifer. Historically, Jefferson County was a mining and agricultural area before suburban expansion from Denver transformed it into a key residential zone in the 20th century. Housing here spans everything from 1950s bungalows and mid-century ranch homes in Lakewood and Wheat Ridge to luxury mountain properties in Evergreen and Conifer. Because of proximity to Denver, the market is strong — typical single-family homes sell in the US $550 K – 850 K range, while foothill estates and view properties often exceed US $1 million. Building a new home costs about US $325 – 400 per sq ft plus land. The area is mainly suburban and urban in its eastern half, with rural/mountain living toward the west. Commute to downtown Denver averages 20–30 minutes, making Jeffco ideal for professionals who want both city convenience and outdoor access.