Looking at the 2016 data, there are 203 registered dogs named Brooklyn. Curiously, only 90 of them live in Brooklyn.
Brooklyns: https://gist.github.com/yurivish/326f64c439176f6d55f8d5528f1...
You can find the full dataset here: https://data.cityofnewyork.us/Health/NYC-Dog-Licensing-Datas...