Diablo California Map

About Diablo, California

Diablo is a locality in Contra Costa County, California, United States. It has a population of approximately 1,255. The population density is 355.2 people per km². Diablo is located at 37.8349°N, 121.9580°W. It observes the Pacific Time (America/Los_Angeles) timezone. ZIP codes: 94528, 94506.

Diablo emerges from the golden, sun-bleached grasses of the inland foothills, where the earth curves into soft, repetitive swells that catch the late afternoon light. It lies 2.5 miles east-northeast of Danville, CA (from Danville, CA: bearing 68°T), and is situated 4.0 miles north-northeast of San Ramon. The East Branch Green Valley Creek carves a narrow, seasonal artery through the landscape, its banks shaded by the sprawling limbs of ancient oaks that thrive in the heat. To the west, the jagged, hazy silhouette of the Coast Ranges marks the horizon, standing as a distant sentinel over the dry, inland expanse. Only a mile away, the quiet waters of Black Hills Reservoir hold the sky in a steady, unblinking mirror, while the rugged terrain of Dan Cook Canyon offers a sharp, shadowed contrast to the gentler slopes nearby. The air here carries a heavy, toasted scent of cured grass and dry soil, a sensory reminder of the long, rainless summers that define this terrain.

Diablo retains a quiet, deliberate character, shaped by a history that favors privacy and a slow, measured pace of life. The proximity to Mount Diablo State Park ensures that the land remains largely preserved, a rugged backdrop for a locality that has shifted from its early agricultural roots toward a quiet, residential existence. The economy of Diablo is not driven by industry or commerce, but by the maintenance of an enclave that values its seclusion and its connection to the uncultivated wild. Residents look toward the high ridges of the park as a constant, familiar anchor, while the local lifestyle remains focused on the rhythms of the seasons—the transition from the verdant, short-lived spring to the long, amber months of autumn. Life in Diablo moves with a muted gravity, undisturbed by the hurried pulse of the wider region, maintaining a stillness that seems to emanate directly from the surrounding hills.

About This Diablo Map Page

This page provides an embedded street and satellite map of Diablo, California. Coordinates: 37.834926, -121.958015. Live weather conditions are sourced directly from the National Weather Service. Real-time local and world news feeds keep the page current.

Detailed location data for Diablo includes the ZIP code (94528, 94506), telephone area code (510), county seat of Contra Costa County (Martinez), and school district assignment (San Ramon Valley Unified School District).

Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity. Population figures are sourced from the 2020 US Census.