RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4616 locations in the last 30 days (4770 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/27/20251940 W FARRAGUT AVELincoln Square40Completed13 daysInternetCity 311
8/27/20254044 W NELSON STAvondale31Completed13 daysAlderman's OfficeCity 311
8/27/20255751 S NOTTINGHAM AVEGarfield Ridge13Completed13 daysAlderman's OfficeCity 311
8/27/2025635 W WRIGHTWOOD AVELincoln Park43Completed8 daysAlderman's OfficeCity 311
8/27/20255056 N LONG AVEJefferson Park45Completed12 daysInternetCity 311
8/27/20251324 W SCHOOL STLake View44Completed13 daysInternetCity 311
8/27/20252100 N MOBILE AVEBelmont Cragin36Completed9 daysAlderman's OfficeCity 311
8/27/20252122 N LATROBE AVEBelmont Cragin36Completed7 daysPhone CallCity 311
8/27/20259016 S JUSTINE STWashington Heights21Completed8 daysInternetCity 311
8/27/202512020 S EMERALD AVEWest Pullman21Completed7 daysInternetCity 311
8/27/20255929 S INDIANA AVEWashington Park20Completed14 daysPhone CallCity 311
8/27/20259436 S VERNON AVERoseland8Completed6 daysPhone CallCity 311
8/27/20255551 W WARWICK AVEPortage Park30Completed9 daysAlderman's OfficeCity 311
8/27/20252336 N MOODY AVEBelmont Cragin36Completed9 daysPhone CallCity 311
8/27/20256130 S GREENWOOD AVEWoodlawn20Completed14 daysPhone CallCity 311
8/27/20254439 N MOBILE AVEPortage Park38Completed13 daysMobile DeviceCity 311
8/27/20251133 E 83RD STAvalon Park8Completed6 daysInternetCity 311
8/27/20252517 W BERWYN AVELincoln Square40Completed13 daysPhone CallCity 311
8/27/20252128 N KOSTNER AVEHermosa26Completed14 daysPhone CallCity 311
8/27/20252419 S HARDING AVESouth Lawndale22Completed9 daysAlderman's OfficeCity 311
8/27/20253619 N JANSSEN AVELake View44Completed13 daysInternetCity 311
8/27/20254113 N PAULINA STLake View47Completed12 daysMobile DeviceCity 311
8/27/20252837 N TALMAN AVEAvondale35Completed13 daysPhone CallCity 311
8/27/20254543 N LOWELL AVEIrving Park39Completed14 daysAlderman's OfficeCity 311
8/27/20255806 W EDDY STPortage Park30Completed9 daysPhone CallCity 311
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