RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4709 locations in the last 30 days (4862 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/29/20268414 S CRANDON AVESouth Chicago8Open—Alderman's OfficeCity 311
9/29/20266507 N BELL AVEWest Ridge50Open—InternetCity 311
9/29/20262537 W 107TH STMorgan Park19Completed3 daysPhone CallCity 311
9/29/20264718 S KARLOV AVEArcher Heights14Open—Alderman's OfficeCity 311
9/29/20263124 S MAY STBridgeport11Open—Alderman's OfficeCity 311
9/29/20263643 W 56TH STWest Elsdon23Open—Phone CallCity 311
9/29/20262748 N RACINE AVELincoln Park32Open—Mobile DeviceCity 311
9/29/2026120 W 116TH STWest Pullman9Open—Phone CallCity 311
9/29/20262831 N HARLEM AVEMontclare29Completed3 daysAlderman's OfficeCity 311
9/29/20265200 N LONG AVEJefferson Park45Open—Phone CallCity 311
9/29/20265442 N SAWYER AVENorth Park39Open—Mobile DeviceCity 311
9/29/20265448 N SAWYER AVENorth Park39Open—Mobile DeviceCity 311
9/29/20262537 W 107TH STMorgan Park19Completed3 daysPhone CallCity 311
9/29/20265446 N SAWYER AVENorth Park39Open—Mobile DeviceCity 311
9/29/2026824 W WEBSTER AVELincoln Park43Open—InternetCity 311
9/29/20264231 N DAMEN AVENorth Center47Open—Mobile DeviceCity 311
9/29/20263515 N WILTON AVELake View44Open—Phone CallCity 311
9/29/20265700 W 64TH PLClearing13Open—Mobile DeviceCity 311
9/29/20261642 N SAWYER AVEHumboldt Park26Open—Phone CallCity 311
9/29/20265808 S SPAULDING AVEGage Park14Open—InternetCity 311
9/29/20263008 W BELDEN AVELogan Square35Open—InternetCity 311
9/29/202610149 S TALMAN AVEBeverly19Open—InternetCity 311
9/29/20262750 N FAIRFIELD AVELogan Square1Completed1 dayPhone CallCity 311
9/29/20267036 S CAMPBELL AVEChicago Lawn17Completed1 dayPhone CallCity 311
9/29/20268301 S LOOMIS STAuburn Gresham17Completed1 dayPhone CallCity 311
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