Enumerating Hoodies

Esteemed Mission writer @brittneyg asks an extremely important question about San Francisco:

How many hoodies do you think exist in this 49 square miles?—
brittney gilbert (@brittneyg) October 24, 2012

Esteemed journalist @alexismadrigal was initially skeptical that hoodies count be counted:

@brittneyg That would be like trying to count the stars in the sky. Or the grains of sand in the ocean.—
Alexis C. Madrigal (@alexismadrigal) October 24, 2012

I applied some quick order-of-magnitude guesstimation, and the impossible seemed within reach:

@alexismadrigal @brittneyg Assume 1/4 the population might actually wear hoodies, and those that do have 3… Easily half a million.—
  (@burritojustice) October 24, 2012

@burritojustice @brittneyg Seriously. We should figure this out. It would destroy the Internet.—
Alexis C. Madrigal (@alexismadrigal) October 24, 2012

@therealWBTC decided to collect DATA:

@burritojustice @alexismadrigal @brittneyg Data! surveymonkey.com/s/97N6TNS—
We Built This City (@TheRealWBTC) October 24, 2012

So take the survey! Do hoodies outnumber San Franciscans? Add you zip code and we can answer that and other eternal eternal questions, like how many dogs have hoodies? Who has more hoodies, the Mission or Outer Sunset? How many hoodies leave the city each day down 280 and 101?