West Contra Costa Unified will try again to set trustee district boundaries after the county Office of Education rejected its first map. Some activists have argued that the rejected map — which ...

The Contra Costa County board of supervisors will wrestle Tuesday with redrawing their electoral districts, an often painful exercise that inherently twists politics and policy. All five supervisors ...

Zoom in on map to see color-coding indicating parcels in the fault zone, liquefaction zone and/or landslide zone. The full legend can be accessed in the menu icon at the upper right. The California ...

Ten years ago, the eastern half of Contra Costa County was a sparsely populated swath of rolling hills, country roads, and agricultural outposts. Orchards, vineyards, and ranches spread out along the ...

The California Geological Survey has issued new tsunami hazard maps for San Francisco, Santa Clara and Contra Costa counties, now updated to account for a “worst-case scenario.” The 2021 maps, crafted ...