The disproportionate presence of Black residents in Julian during the gold rush era is not incidental. Albert and Margaret Robinson — both formerly enslaved people — arrived in Julian in the 1880s and established themselves as central figures in the community. They built the Hotel Robinson, which opened in 1897 and would become the Julian Gold Rush Hotel. Other Black families farmed, mined, and established businesses in the town during a period when California's promises of equal opportunity, however imperfectly realized, offered more than many parts of the country. Julian was marked California Historical Landmark No. 412 in recognition of its gold mining history, but the human history of who built the town and who thrived there in those early decades is equally significant.

The Julian gold rush lasted from the early 1870s into the 1880s, producing millions of dollars in ore and driving the establishment of the town, its schools, hotels, and civic institutions. The gold came from hard-rock mining rather than placer deposits — miners followed veins of quartz through granite rather than panning streams — which required investment in equipment and labor. Several mines operated in and around the Julian district, and the town grew to serve the miners with commerce, services, and community. When the gold ran out, Julian did what many former mining towns do: it reinvented itself, this time around agriculture, tourism, and the particular appeal of a mountain town close enough to San Diego for a day trip.

The Apple Days Festival has run in Julian since 1949, celebrating the apple orchards that took root in the mountain soil after the gold rush faded. Each October, the population of this small community of a few thousand people swells dramatically as visitors arrive from San Diego and beyond for apple pies, cider, and the atmosphere of a nineteenth-century mountain town that has preserved enough of its historic character to be genuinely distinctive. In 2021, Julian received designation as an International Dark Sky Community — recognition that the mountain air and distance from urban light pollution make its skies among the clearest in San Diego County. On a clear night, the Milky Way is visible from Julian in a way it simply is not from the coastal cities 60 miles to the west.

In October 2003, the Cedar Fire swept through the mountains east of San Diego in one of the most destructive wildfires in California history. The fire burned more than 280,000 acres and destroyed over 2,000 structures. Julian and its surrounding communities were in the fire's path, and the threat to the historic mountain town was real and immediate. Evacuation orders went out; some structures burned. The community survived, in part because of fire suppression efforts and in part because of the stone, brick, and adobe construction that characterizes much of the historic downtown. Recovery took years. The fire left its mark on the surrounding landscape — visible even now in the different-aged vegetation on the hillsides — but Julian itself endured, its identity intact.