RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4547 locations in the last 30 days (4702 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20265135 S HARPER AVEHyde Park4Completed3 daysPhone CallCity 311
8/28/20265135 S HARPER AVEHyde Park4Completed3 daysPhone CallCity 311
8/28/20261926 S RACINE AVELower West Side25Completed14 daysMobile DeviceCity 311
8/28/20265249 W CARMEN AVEJefferson Park45Completed17 daysInternetCity 311
8/28/20265719 N OKETO AVENorwood Park41Completed13 daysAlderman's OfficeCity 311
8/28/202610500 S MAPLEWOOD AVEBeverly19Completed7 daysPhone CallCity 311
8/28/20262316 N KARLOV AVEHermosa35Completed13 daysMobile DeviceCity 311
8/28/20261729 N KEYSTONE AVEHumboldt Park26Completed13 daysPhone CallCity 311
8/28/20261758 N RUTHERFORD AVEAustin29Completed7 daysPhone CallCity 311
8/28/20265630 N LINCOLN AVEWest Ridge40Completed14 daysMobile DeviceCity 311
8/28/20267800 S JEFFERY BLVDSouth Shore8Completed6 daysPhone CallCity 311
8/28/20267700 S JEFFERY AVESouth Shore8Completed6 daysPhone CallCity 311
8/28/20267600 S JEFFERY AVESouth Shore8Completed6 daysPhone CallCity 311
8/28/20265856 W DAKIN STPortage Park38Completed12 daysInternetCity 311
8/28/20267820 S KEDVALE AVEAshburn18Completed7 daysMobile DeviceCity 311
8/28/20267845 S MORGAN STAuburn Gresham17Completed13 daysMobile DeviceCity 311
8/28/20264536 N MAGNOLIA AVEUptown46Completed13 daysMobile DeviceCity 311
8/28/20265736 S PRINCETON AVEEnglewood20Completed12 daysPhone CallCity 311
8/28/20265741 S PRINCETON AVEEnglewood20Completed12 daysPhone CallCity 311
8/28/20263530 N RETA AVELake View44Completed12 daysInternetCity 311
8/28/20269615 S YALE AVERoseland9Completed14 daysPhone CallCity 311
8/28/20262046 N ORLEANSLincoln Park43Completed11 daysSalesforce Mobile AppCity 311
8/28/20266251 N LENOX AVEForest Glen39Completed14 daysPhone CallCity 311
8/28/20263220 S ABERDEEN STBridgeport11Completed14 daysInternetCity 311
8/28/20267523 S GREEN STAuburn Gresham17Completed13 daysPhone CallCity 311
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