That map of every rat complaint called in to the city since 2011? Redditor Daniel Hadley has it for you right here.
As you can see, JP isn't the most rat-complaint-intensive area of Boston. Even so, some parts of the neighborhood have a thick density of reports.
If you do see a rat, you can call the city's non-emergency service line at 311 or the Mayor's Hotline at 617-635-4500 or use the Citizen Connect app on your mobile phone.
Hat tip to boston.com for uncovering the map.
Here's Hadley's original post on Reddit and here is the series of four maps: