GeoJSON data not displaying in Python folium map

Question

I am trying to display the following geojson file in a folium map in Python but it just shows an empty map with none of the data.

Here are the steps I have tried:

Answer 1

Try this: m.add_child(folium.GeoJson(data = open("census_tracts_2010.geojson"))) and then call m.save() fun

Answer 2

That file is not a GeoJson it is a TopoJson. You need to use folium.TopoJson instead.

import folium

m = folium.Map(location=[40.66393072,-73.93827499], zoom_start=13)

folium.TopoJson(
    open('census_tracts_2010.geojson'),
    object_path='objects.nyct2010',
).add_to(m)

m

Answer 3

You need to open the geojson file.

    m.choropleth(open("census_tracts_2010.geojson"))

Take a look at the examples https://folium.readthedocs.io/en/latest/quickstart.html