RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4513 locations in the last 30 days (4668 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.

32080fewer → more

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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/20/20251807 N FAIRFIELD AVELogan Square1Completed14 daysMobile DeviceCity 311
7/27/20262628 W 38TH STBrighton Park12Completed14 daysPhone CallCity 311
8/27/20266608 S WINCHESTER AVEWest Englewood16Completed14 daysPhone CallCity 311
7/22/20263038 W MEDILL AVELogan Square35Completed14 daysAlderman's OfficeCity 311
9/9/20265642 N NAGLE AVENorwood Park41Completed14 daysPhone CallCity 311
8/27/20252128 N KOSTNER AVEHermosa26Completed14 daysPhone CallCity 311
8/10/20269500 S COMMERCIAL AVESouth Deering10Completed14 daysAlderman's OfficeCity 311
8/12/20261773 N CLYBOURN AVELincoln Park43Completed14 daysMobile DeviceCity 311
8/12/20264514 S CALUMET AVEGrand Boulevard3Completed14 daysMobile DeviceCity 311
8/20/20269606 S CLAREMONT AVEBeverly19Completed14 daysInternetCity 311
8/10/20265106 W MADISON STAustin28Completed14 daysMobile DeviceCity 311
7/28/20265824 N PAULINA STEdgewater40Completed14 daysPhone CallCity 311
7/27/20264141 S MAPLEWOOD AVEBrighton Park12Completed14 daysMobile DeviceCity 311
9/3/20265736 W MELROSE STPortage Park30Completed14 daysPhone CallCity 311
8/6/20262737 W CARMEN AVELincoln Square40Completed14 daysPhone CallCity 311
8/12/20252344 W 24TH PLLower West Side25Completed14 daysAlderman's OfficeCity 311
8/6/20266105 N FAIRFIELD AVEWest Ridge40Completed14 daysInternetCity 311
9/10/20267042 S ABERDEEN STEnglewood16Completed14 daysPhone CallCity 311
8/19/20251701 N MILWAUKEE AVEWest Town32Completed14 daysMobile DeviceCity 311
9/2/20262139 N BINGHAM STLogan Square1Completed14 daysInternetCity 311
8/13/20255748 S BLACKSTONE AVEHyde Park5Completed14 daysMobile DeviceCity 311
8/19/20251704 W NELSON STLake View32Completed14 daysInternetCity 311
8/20/20264951 W MELROSE STPortage Park31Completed14 daysPhone CallCity 311
9/11/20265649 W GRACE STPortage Park38Completed14 daysMobile DeviceCity 311
8/17/20264461 N HARDING AVEAlbany Park33Completed14 daysMobile DeviceCity 311
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