title: Import Polygon Data from geojson files into PostGIS using GeoDjango
body: <p>Am using GeoDjango with PostGIS as Backend. I have few geojson files with features as following example. GeoDjango has provided information to import shape files and other formats but geojson formats. How do I import these geojson files into DB? </p>
  
  <pre><code>  "features": [
  { "type": "Feature", "properties": { "SubName": "X", "SubSubName": "A" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 70.693828, 37.074496 ], [ 70.693828, 37.074496 ] ] ] } }
  ,
  { "type": "Feature", "properties": { "SubName": "X", "SubSubName": "B" }, "geometry": { "type": "Polygon", "coordinates": [ [ [ 70.502913, 27.065997 ],  [ 70.502913, 27.065997 ] ] ] } }
  </code></pre>
  
  <p>I have two core requirements:</p>
  
  <ol>
  <li>Load the Subregion polygons on webportal using D3JS Map library</li>
  <li>When i have a lat-long, find in which polygon does this point exist and get the SubName &amp; SubSubName from the polygon properties.</li>
  </ol>
  
  <p>It would be great, if there is proper documentation on PostGIS usage &amp; import files for GeoDjango.</p>
  
  <p>Thanks in Advance.</p>