title: Google Maps API finding area by address
body: <p>In my application I want to group items addresses by areas, my items already use Google maps API to choose address and has Lat/Long coordinates. I want to group them by areas automatically.</p>
  
  <p>The example would be
  If we have address <a href="https://www.google.com/maps/place/Erfurto+g.+1,+Vilnius+04220,+Lietuva/@54.6765968,25.2102183,15.5z/data=!4m2!3m1!1s0x46dd9398506f84bd:0x6cc62f1d26bc6613" rel="nofollow">https://www.google.com/maps/place/Erfurto+g.+1,+Vilnius+04220,+Lietuva/@54.6765968,25.2102183,15.5z/data=!4m2!3m1!1s0x46dd9398506f84bd:0x6cc62f1d26bc6613</a></p>
  
  <p>It should automatically be assigned to area, marked here:
  <a href="https://www.google.com/maps/place/Lazdynai,+Vilnius,+Lietuva/@54.6702541,25.1870655,14z/data=!4m2!3m1!1s0x46dd93a6cc53ba05:0x2600d18d4c454331" rel="nofollow">https://www.google.com/maps/place/Lazdynai,+Vilnius,+Lietuva/@54.6702541,25.1870655,14z/data=!4m2!3m1!1s0x46dd93a6cc53ba05:0x2600d18d4c454331</a></p>
  
  <p>Areas should be also administered in my application.</p>
  
  <p>As I understand I should store all MultiPolygon coordinates in my back-end, and then use some algorithm to find if the coordinates of address belong to that polygon? Am I right? Or I can fetch that somehow using Google Map API?</p>