RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4385 locations in the last 30 days (4540 reports) · Last sighting yesterday

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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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/1/20262547 W WILSON AVELincoln Square47Completed2 daysPhone CallCity 311
6/2/20264625 N HAMILTON AVELincoln Square47Completed1 dayPhone CallCity 311
9/5/20264900 N WINCHESTER AVELincoln Square47Completed11 daysMobile DeviceCity 311
9/1/20262426 W EASTWOOD AVELincoln Square47Completed1 dayPhone CallCity 311
5/26/20262420 W WINNEMAC AVELincoln Square40Completed6 daysMobile DeviceCity 311
8/27/20264835 N WINCHESTER AVELincoln Square47Completed13 daysMobile DeviceCity 311
5/27/20262566 W WINNEMAC AVELincoln Square40Completed5 daysMobile DeviceCity 311
9/24/20252300 W GIDDINGS STLincoln Square47Completed9 daysInternetCity 311
5/31/20262716 W RASCHER AVELincoln Square40Completed1 dayMobile DeviceCity 311
11/24/20252724 W RASCHER AVELincoln Square40Completed1 dayPhone CallCity 311
5/27/20262743 W RASCHER AVELincoln Square40Completed5 daysMobile DeviceCity 311
11/21/20252853 W FARRAGUT AVELincoln Square39Completed4 daysPhone CallCity 311
5/27/20262658 W BALMORAL AVELincoln Square40Completed5 daysMobile DeviceCity 311
5/26/20265345 N VIRGINIA AVELincoln Square39Completed1 dayPhone CallCity 311
9/24/20252210 W WILSON AVELincoln Square47Completed9 daysPhone CallCity 311
9/23/20264501 N ROCKWELL STLincoln Square47Open—Mobile DeviceCity 311
5/27/20262600 W BALMORAL AVELincoln Square40Completed5 daysMobile DeviceCity 311
3/9/20264410 N WOLCOTT AVELincoln Square47Completed1 dayInternetCity 311
6/3/20265241 N DAMEN AVELincoln Square40Completed2 daysPhone CallCity 311
9/24/20254819 N OAKLEY AVELincoln Square47Completed9 daysAlderman's OfficeCity 311
7/22/20262827 W BERWYN AVELincoln Square39Completed13 daysInternetCity 311
8/20/20264855 N WASHTENAW AVELincoln Square40Completed13 daysInternetCity 311
5/25/20265100 N WOLCOTT AVELincoln Square40Completed7 daysInternetCity 311
5/20/20264926 N WINCHESTER AVELincoln Square47Completed2 daysInternetCity 311
5/28/20265102 N WOLCOTT AVELincoln Square40Completed4 daysInternetCity 311
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