Download OpenStreetMap Data for California

Select an area within California and choose a data type to download from OpenStreetMap via the Overpass API. Data is returned as GeoJSON.

1. Select Area

2. Choose Data Type

Data from OpenStreetMap contributors, licensed under ODbL.

Download California Map Data from OpenStreetMap

Use this free tool to download geospatial data for California directly from OpenStreetMap. The map is pre-centered on California — draw a bounding box to select an area, choose a data type, and export the results as GeoJSON. No sign-up or software installation required.

Available California Data Types

California Roads & Highways

Download motorways, highways, residential streets, paths, and cycleways across California.

California Building Footprints

Extract building outlines including residential, commercial, and industrial structures in California.

California Waterways

Rivers, streams, canals, and drainage ditches throughout California.

California Railways

Rail lines, stations, and light rail networks in California.

California Land Use

Parks, forests, residential zones, commercial areas, and farmland in California.

California Amenities

Schools, hospitals, restaurants, shops, and public services across California.

California Natural Features

Water bodies, forests, coastlines, peaks, and wetlands in California.

California Power Infrastructure

Power lines, substations, and generators throughout California.

How to Download California OSM Data

Select an area — Use Shift + drag on the map to draw a bounding box within California.
Choose a data type — Pick from roads, buildings, waterways, railways, land use, amenities, natural features, or power infrastructure.
Download — Click the download button to fetch data from the Overpass API. Preview the results on the map, then save as GeoJSON.

Output Format

Data is exported as GeoJSON, a widely supported open standard for geospatial data. GeoJSON files can be opened in QGIS, ArcGIS, Mapbox, Leaflet, Google Earth, and many other GIS tools. You can also use QuickMapTools to convert GeoJSON to Shapefile, convert GeoJSON to KML, or visualize GeoJSON on a map.