RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4553 locations in the last 30 days (4700 reports) · Last sighting 21 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/5/20261714 W FARWELL AVERogers Park49Completed11 daysPhone CallCity 311
9/14/20263757 W 34TH STSouth Lawndale22Completed11 daysPhone CallCity 311
8/15/20252337 W MONTANA STLogan Square32Completed11 daysMobile DeviceCity 311
8/7/20254517 N KNOX AVEIrving Park39Completed11 daysPhone CallCity 311
10/9/20254900 W FLETCHER STBelmont Cragin31Completed11 daysAlderman's OfficeCity 311
9/21/20253624 N PAULINA STLake View47Completed11 daysPhone CallCity 311
8/8/202510511 S PULASKI RDMount Greenwood19Completed11 daysPhone CallCity 311
9/3/20262063 N LOCKWOOD AVEBelmont Cragin36Completed11 daysAlderman's OfficeCity 311
8/10/20262606 N MCVICKER AVEBelmont Cragin30Completed11 daysPhone CallCity 311
8/13/20264409 W MONTANA STHermosa31Completed11 daysAlderman's OfficeCity 311
9/11/20264553 N WOLCOTT AVELincoln Square47Completed11 daysPhone CallCity 311
9/19/20259546 S GREEN STWashington Heights21Completed11 daysPhone CallCity 311
9/18/20265223 S BISHOP STNew City16Completed11 daysPhone CallCity 311
8/30/20251223 N GREENVIEW AVEWest Town1Completed11 daysMobile DeviceCity 311
9/10/20261023 W DAKIN STLake View46Completed11 daysPhone CallCity 311
9/18/20255629 S KOLIN AVEWest Elsdon13Completed11 daysAlderman's OfficeCity 311
9/24/20267133 W 63RD PLClearing13Completed11 daysPhone CallCity 311
7/30/20264111 S CAMPBELL AVEBrighton Park12Completed11 daysAlderman's OfficeCity 311
9/19/20253324 W MAYPOLE AVEEast Garfield Park28Completed11 daysMobile DeviceCity 311
9/8/20255653 S MASON AVEGarfield Ridge13Completed11 daysAlderman's OfficeCity 311
7/9/20263400 N HARDING AVEAvondale30Completed11 daysAlderman's OfficeCity 311
9/18/20253047 W CORTLAND STLogan Square26Completed11 daysMobile DeviceCity 311
9/6/20252453 N NEW ENGLAND AVEMontclare36Completed11 daysInternetCity 311
7/24/20256443 N WHIPPLE STWest Ridge50Completed11 daysPhone CallCity 311
9/19/20256839 N MINNETONKA AVEForest Glen45Completed11 daysMobile DeviceCity 311
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