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Diablo California Map

Explore Diablo, California, with this interactive street and satellite map.

This page also offers TOPO MAPS — the official USGS topographic sheets — plus USGS aerial imagery, a labelled USNG grid overlay, a distance and bearing tool, and a GPS grid-reference readout. See How to Use This Map below.

Interactive Map of Diablo, California

How to Use This Diablo, California Map

This interactive map shows the street layout and satellite imagery for Diablo, California. Use the Map and Satellite buttons above to switch between street map and aerial imagery views. Use the + and − buttons to zoom in or out, or scroll your mouse wheel while holding the Control key to zoom. On a touchscreen, use a two-finger pinch gesture. Drag the map to pan to any area of California or beyond.

Click ⛶ Fullscreen to expand the map to fill your screen. To return to the normal page view, press the Escape key, click the ✕ Exit Fullscreen button that appears above the map, or on a mobile device tap the back button (Android) or the close icon (iOS).

TOPO MAPS — NEW. Click the green 🔍 Search Maps button below the map to open a second map with a Base map row offering three choices. OSM is the standard OpenStreetMap street map. Topo shows the official USGS topographic maps from The National Map — contours, hydrography, land cover and shaded relief, the same mapping used for hiking, hunting and back-country navigation in the Adirondacks, the Catskills and the Finger Lakes. Imagery shows USGS aerial photography, mostly 1-metre NAIP. The search box finds any US town, county or landmark by name, so you are not limited to Diablo.

Reading the map like a paper quad. Click Grid to overlay the U.S. National Grid (USNG), labelled along the edges exactly as a printed topographic sheet is — at normal zoom the squares are one kilometre across, so you can read a six-figure grid reference by eye and judge distance directly off the map. Click Measure, then tap two points, to get the distance between them together with the grid bearing in degrees and mils, the true bearing, and the magnetic bearing to set on a compass.

Click 📍 My position to take a single GPS reading from your device. It marks where you are and reports your position as a USNG grid reference as well as plain latitude and longitude — USNG being the format FEMA and US search and rescue teams work from — with a Copy position button so you can paste it straight into a text message. It takes one reading and stops, rather than tracking continuously, to conserve your battery. Note that map tiles need cell coverage, but a GPS reading does not — your coordinates stay correct even where the map itself cannot load.

City	Diablo
State	California (CA)
County	Contra Costa County
Country	United States of America
Timezone	Pacific Time (America/Los_Angeles)

Latitude	37.834926
Longitude	-121.958015
Population	1,255
Density	355.2 /km²
Incorporated	N/A
ZIP Codes	94528, 94506
Area Code	510
County Seat	Martinez
School District	San Ramon Valley Unified School District

🌦 Goto Diablo Weather Page: Diablo, California — Weather Warnings, Forecast, Radar, Satellite & Current Conditions

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.

Nearby Outdoor Places

Diablo Road Stump (Public Artwork) — 0.5 mi, 270° W
Mount Diablo State Park (State Park) — 0.7 mi, 054° NE
Sycamore Valley Open Space Regional Preserve (Local Conservation Area) — 1.1 mi, 160° S
Oak Hill Park (Local Park) — 1.4 mi, 277° W
Las Trampas/Diablo Regional Trail (Local Recreation) — 1.7 mi, 308° NW
Sentinel Rock (Viewpoint) — 1.7 mi, 044° NE
Diablo Foothills Regional Park (Local Park) — 2.9 mi, 323° NW
Las Trampas Wilderness Regional Preserve (Local Conservation Area) — 2.9 mi, 233° SW
Fages Trail (Monument) — 3.2 mi, 269° W
Blackhawk Gallery (Gallery) — 3.2 mi, 137° SE
Curry Canyon Ranch (Conservation Area) — 3.4 mi, 085° E
Historic Green Ranch Site (Historic Ruins) — 3.5 mi, 046° NE
Shell Ridge Open Space (Local Recreation) — 3.8 mi, 312° NW
Stone Valley (Monument) — 4.2 mi, 285° W
Alamo Grammer School (Monument) — 4.2 mi, 285° W
THE LOT City Center (Cinema) — 5.0 mi, 181° S
Donner Cabin (Historic Ruins) — 5.6 mi, 020° N
Tassajara School (Museum) — 5.8 mi, 112° E
Front Row Theater (Theatre) — 6.2 mi, 155° SE
Clayton Historical Society Museum (Museum) — 7.5 mi, 010° N
Walnut Creek Model Railroad Society (Museum) — 8.8 mi, 314° NW
Little Classroom (Museum) — 9.4 mi, 173° S
Concord Historical Museum (Museum) — 10.5 mi, 336° NW
Gray Wolf (Attraction) — 11.3 mi, 240° SW
Jaguar (Attraction) — 11.3 mi, 240° SW
California Condor (Attraction) — 11.4 mi, 240° SW
Don Edwards San Francisco Bay National Wildlife Refuge (National Wildlife Refuge) — 15.7 mi, 220° SW · 81k acres
Golden Gate National Recreation Area (National Recreation Area) — 25.0 mi, 269° W · 113k acres
San Pablo Bay National Wildlife Refuge (National Wildlife Refuge) — 26.5 mi, 318° NW · 43k acres
California Coastal National Monument (National Monument) — 29.1 mi, 264° W · 8,946 acres

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