The scariest part of Halloween night? Running out of candy for hungry trick-or-treaters.

Thanks to Census Mapper you can avoid this tragedy altogether thanks to this handy Trick-or-Treat Onslaught Estimator that’s been put together using data collected in both the 2006 and 2011 census.

See also

• 31 things to this Halloween in Calgary
• 10 horror films to watch on Netflix this Halloween
• 9 haunted houses in Calgary that will scare the crap out of you
• 5 things to do in Calgary today: Monday, October 31

This interactive Canada-wide map estimates the number of children of ‘prime trick-or-treat’ age per doorbell in various areas, aiming to give adults a heads up when it comes to the amount of candy they will need.

Trick-Or-Treat Onslaught Estimator/Canada Census Mapper

The darker the section the more children living in the area, and the more likely you are to get an onslaught of costume-clad kids at your door tonight. It looks like the most spooktacular area for trick-or-treaters in Calgary is estimated to be in Marda Loop and the neighbourhoods within the boundaries of 16th Avenue, Highway 8, and 69th Street.

Trick-Or-Treat Onslaught Estimator/Canada Census Mapper

Check out the stats in your neighbourhood and see if you need to make a last minute trip to stock up on candy – can’t say we didn’t warn you!

If you’re looking for the best neighbourhoods to go trick-or-treating in or you’re interested in finding haunted houses in your area, there are maps for that too.