RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4349 locations in the last 30 days (4531 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/2/20262631 W POTOMAC AVEWest Town26Completed1 dayMobile DeviceCity 311
6/9/20262632 N SPAULDING AVELogan Square35Completed2 daysAlderman's OfficeCity 311
4/26/20262632 N SPRINGFIELD AVELogan Square35Completed2 daysInternetCity 311
4/6/20262632 S SPAULDING AVESouth Lawndale25Completed1 dayPhone CallCity 311
3/22/20262632 S SPAULDING AVESouth Lawndale25Completed2 daysInternetCity 311
7/29/20252632 W 23RD PLSouth Lawndale25Completed9 daysInternetCity 311
7/17/20262632 W EASTWOOD AVELincoln Square47Completed12 daysMobile DeviceCity 311
7/27/20262632 W EASTWOOD AVELincoln Square47Completed11 daysInternetCity 311
10/28/20252632 W EASTWOOD AVELincoln Square47Completed3 daysPhone CallCity 311
3/9/20262632 W EASTWOOD AVELincoln Square47Completed1 dayInternetCity 311
5/5/20262632 W MEDILL AVELogan Square1Completed1 dayPhone CallCity 311
3/11/20262633 S CHRISTIANA AVESouth Lawndale25Completed2 daysInternetCity 311
4/23/20262633 W 99TH STBeverly19Completed1 dayAlderman's OfficeCity 311
9/14/20252633 W BALMORAL AVELincoln Square40Completed8 daysInternetCity 311
1/13/20262633 W BALMORAL AVELincoln Square40Completed1 dayMobile DeviceCity 311
10/7/20262633 W BELDEN AVELogan Square1Completed15 daysPhone CallCity 311
4/17/20262633 W CARMEN AVELincoln Square40Completed0 daysInternetCity 311
4/15/20262633 W CORTEZ STWest Town36Completed5 daysMobile DeviceCity 311
1/9/20262633 W CORTEZ STWest Town36Completed3 daysMobile DeviceCity 311
11/20/20252633 W HIRSCH STWest Town26Completed1 dayPhone CallCity 311
10/26/20262633 W LUTHER STSouth Lawndale25Open—Mobile DeviceCity 311
4/18/20262634 N BURLING STLincoln Park43Completed2 daysMobile DeviceCity 311
10/5/20262634 N BURLING STLincoln Park43Completed15 daysMobile DeviceCity 311
9/19/20252634 N LAWNDALE AVELogan Square35Completed12 daysMobile DeviceCity 311
9/27/20252634 N NEW ENGLAND AVEMontclare36Completed6 daysInternetCity 311
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