the scientific consensus right now is that there are very high infection rates in most places (certainly much higher than reported), and this is variable on geography and connectivity. so, toronto would have much higher infection rates than moose jaw or swift current - for now.

how much higher? that's what we don't know yet.

we need to do antibody testing to put proper bounds on this, but the consensus is that it is many orders of magnitude greater than has been tested for directly, or ever could be - 50x, 80x, 100x.

certainly, 10% would be a lower bound for cities right now, based on data from sewage. but, just based on the death rate in ontario, which is about 900, infection rates around 20% are very easy to calculate with off the cuff calculations. this is the consensus opinion, and has been from the start, regardless of what your twitter feed says.