RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4572 locations in the last 30 days (4738 reports) · Last sighting 11 hours ago

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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

931 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/13/20261614 N KARLOV AVEHumboldt Park26Open—Phone CallCity 311
10/13/20262845 N WASHTENAW AVEAvondale35Open—Mobile DeviceCity 311
10/13/20266451 S LOCKWOOD AVEClearing13Open—InternetCity 311
10/13/20265741 S NEENAH AVEGarfield Ridge13Open—InternetCity 311
10/13/20261640 E 74TH PLSouth Shore8Open—Phone CallCity 311
10/13/20264740 S PRAIRIE AVEGrand Boulevard3Completed7 daysPhone CallCity 311
10/13/20261621 W GREGORY STEdgewater40Open—InternetCity 311
10/13/2026726 S OAKLEY BLVDNear West Side28Open—Phone CallCity 311
10/13/20266121 N FOREST GLEN AVEForest Glen39Open—Phone CallCity 311
10/13/2026937 W 31ST STBridgeport11Open—Phone CallCity 311
10/13/202610440 S WHIPPLE STMount Greenwood19Completed6 daysMobile DeviceCity 311
10/13/20267012 W NEWPORT AVEDunning38Open—InternetCity 311
10/13/2026142 E 120TH STWest Pullman9Open—Phone CallCity 311
10/13/202610048 S YATES AVESouth Deering7Completed2 daysPhone CallCity 311
10/13/20262323 N ORCHARDLincoln Park43Open—Salesforce Mobile AppCity 311
10/13/20261700 S LOOMIS STLower West Side25Open—Mobile DeviceCity 311
10/13/20263149 N HONORE STNorth Center32Open—Mobile DeviceCity 311
10/13/2026535 N WELLS STNear North Side42Open—Mobile DeviceCity 311
10/13/20262041 W BERWYN AVELincoln Square40Open—InternetCity 311
10/13/20265063 N MANGO AVEJefferson Park45Open—Phone CallCity 311
10/13/20262157 N KEYSTONEHermosa35Open—Salesforce Mobile AppCity 311
10/13/20263225 W 83RD STAshburn18Open—Phone CallCity 311
10/13/20265414 W IOWA STAustin37Open—Phone CallCity 311
10/13/20263138 W DIVERSEY AVEAvondale35Open—InternetCity 311
10/13/20261527 N SPRINGFIELD AVEHumboldt Park26Open—Phone CallCity 311
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