Nominatim API

ENDPOINTS
GET/nominatim/geocode

City Geocode

Geocode any city name to coordinates, bounding box, and full GeoJSON boundary polygon using Nominatim.

QUERY PARAMS

City name to geocode.

State or province name for disambiguation.

ISO 3166-1 alpha-2 country code (e.g., us, jp, gb).

{
  "name": "San Francisco",
  "type": "administrative",
  "class": "boundary",
  "osm_id": 111968,
  "geojson": {
    "type": "MultiPolygon",
    "coordinates": [
      [
        [
          [
            -123.173825,
            37.775727
          ],
          [
            -123.156757,
            37.73784
          ],
          [
            -123.126114,
            37.71673
          ],
          [
            -123.09285,
            37.713688
          ],
          [
            -123.068589,
            37.673041
          ],
          [
            -123.040696,
            37.650328
          ],
          [
            -122.986747,
            37.641783
          ],
          [
            -122.963006,
            37.651984
          ],
          [
            -122.941364,
            37.67658
          ],
          [
            -122.935865,
            37.702459
          ],
          [
            -122.949985,
            37.732187
          ],
          [
            -122.9945311,
            37.7692015
          ],
          [
            -123.033841,
            37.778375
          ],
          [
            -123.043,
            37.7947642
          ],
          [
            -123.070494,
            37.81383
          ],
          [
            -123.1050169,
            37.823106
          ],
          [
            -123.132272,
            37.819676
          ],
          [
            -123.166012,
            37.796885
          ],
          [
            -123.173825,
            37.775727
          ]
        ]
      ],
      [
        [
          [
            -122.6162066,
            37.8153638
          ],
          [
            -122.588174,
            37.789362
          ],
          [
            -122.5754041,
            37.7082697
          ],
          [
            -122.2814578,
            37.7082002
          ],
          [
            -122.3466351,
            37.8108018
          ],
          [
            -122.37382,
            37.8835693
          ],
          [
            -122.4321472,
            37.9296678
          ],
          [
            -122.418742,
            37.8525993
          ],
          [
            -122.4993053,
            37.8199182
          ],
          [
            -122.5181854,
            37.8253886
          ],
          [
            -122.5280478,
            37.8152301
          ],
          [
            -122.6162066,
            37.8153638
          ]
        ]
      ]
    ]
  },
  "licence": "Data © OpenStreetMap contributors, ODbL 1.0. http://osm.org/copyright",
  "osm_type": "relation",
  "place_id": 324244721,
  "importance": 0.780971280931417,
  "place_rank": 12,
  "addresstype": "city",
  "boundingbox": [
    "37.6403143",
    "37.9296678",
    "-123.1738250",
    "-122.2814578"
  ],
  "center_point": {
    "latitude": 37.7879363,
    "longitude": -122.4075201
  },
  "display_name": "San Francisco, California, United States"
}