I have a problem with the function buffers in QGIS. I prepared a layer with bus stops and buffers for them (500 m). Then I joined layer with buffers and layer with density of population. I want to know the number of inhabitants living within 500 m from the bus stop. That's why I use join attributes by location. Everything came out well, but the problem is the overlapping buffers. "Connected people" are in two or three buffers at once. And I need to know the number of inhabitants outside of these buffers. Is there any possibility of division between buffers or converted, so as not counted them a few at a time?

Orange and brown spots are inhabitants.

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  • 2
    Union all the buffer areas into one geometry.
    – user30184
    Mar 7, 2016 at 10:10
  • 1
    Is your layer with density of population a point layer?
    – Joseph
    Mar 7, 2016 at 11:24
  • Thanks, of course it was very easy, but I not even thought about that :)
    – KarolinaC
    Mar 7, 2016 at 11:45

1 Answer 1


If you tick the dissolve results option when you run the buffer you won't have issues with overlapping zones and double counting.

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