RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4364 locations in the last 30 days (4550 reports) · Last sighting 11 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/22/20263737 N OTTAWA AVEDunning38Completed6 daysPhone CallCity 311
7/29/20257451 W FOREST PRESERVE AVEDunning38Completed9 daysAlderman's OfficeCity 311
8/19/20263200 N PARIS AVEDunning38Completed12 daysPhone CallCity 311
8/22/20263248 N NEWLAND AVEDunning36Completed11 daysInternetCity 311
8/10/20263328 N NAGLE AVEDunning38Completed15 daysMobile DeviceCity 311
4/6/20267448 W BARRY AVEDunning29Completed1 dayInternetCity 311
6/30/20263335 N NEW ENGLAND AVEDunning38Completed9 daysInternetCity 311
8/21/20263422 N NAGLE AVEDunning38Completed4 daysMobile DeviceCity 311
11/12/20256338 W NEWPORT AVEDunning30Completed1 dayInternetCity 311
4/7/20263939 N OCONTO AVEDunning38Completed1 dayInternetCity 311
4/6/20266100 W NEWPORT AVEDunning30Completed2 daysAlderman's OfficeCity 311
11/11/20256545 W ADDISON STDunning38Completed2 daysPhone CallCity 311
11/12/20257035 W HENDERSON STDunning38Completed1 dayInternetCity 311
11/12/20253239 N OSAGE AVEDunning38Completed1 dayPhone CallCity 311
7/13/20268240 W BELMONT AVEDunning38Completed9 daysPhone CallCity 311
9/20/20263400 N PARIS AVEDunning38Completed15 daysPhone CallCity 311
11/12/20257754 W BELMONT AVEDunning38Completed1 dayPhone CallCity 311
9/24/20266300 W PATTERSON AVEDunning38Completed12 daysPhone CallCity 311
7/29/20263714 N OLEANDER AVEDunning38Completed1 dayInternetCity 311
6/22/20263229 N PITTSBURGH AVEDunning38Completed3 daysInternetCity 311
8/21/20263440 N NATOMA AVEDunning38Completed12 daysPhone CallCity 311
5/30/20263709 N OSCEOLA AVEDunning38Completed5 daysMobile DeviceCity 311
9/14/20263720 N OSCEOLA AVEDunning38Completed14 daysInternetCity 311
8/2/20253729 N OLEANDER AVEDunning38Completed12 daysMobile DeviceCity 311
7/10/20268011 W IRVING PARK RDDunning38Completed11 daysInternetCity 311
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