RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4489 locations in the last 30 days (4638 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/2026745 W 87TH STAuburn Gresham21Completed9 daysAlderman's OfficeCity 311
8/24/20262853 S HARDING AVESouth Lawndale22Completed10 daysAlderman's OfficeCity 311
8/24/20264305 W 47TH STArcher Heights14Completed8 daysInternetCity 311
8/24/2026801 W DIVERSEY AVELincoln Park43Completed10 daysMobile DeviceCity 311
8/24/20265228 N CAMPBELL AVELincoln Square40Completed9 daysInternetCity 311
8/24/20267318 N GREENVIEW AVERogers Park49Completed16 daysInternetCity 311
8/24/20267120 W BERWYN AVENorwood Park41Completed2 daysPhone CallCity 311
8/24/20262421 W GRENSHAW STNear West Side28Completed10 daysMobile DeviceCity 311
8/24/20265759 N OCTAVIA AVENorwood Park41Completed8 daysInternetCity 311
8/24/20263515 N MARSHFIELD AVELake View47Completed15 daysInternetCity 311
8/24/20263800 W 84TH STAshburn18Completed10 daysInternetCity 311
8/24/20266101 W PATTERSON AVEDunning38Completed1 dayMobile DeviceCity 311
8/24/20265126 W 63RD PLClearing13Completed11 daysInternetCity 311
8/24/20262127 N SEMINARY AVELincoln Park43Completed10 daysInternetCity 311
8/24/20262240 N KENMORE AVELincoln Park43Completed10 daysInternetCity 311
8/24/20267513 N WINCHESTER AVERogers Park49Completed16 daysInternetCity 311
8/24/20264548 W MAYPOLE AVEWest Garfield Park28Completed10 daysPhone CallCity 311
8/24/20261509 W SHERWIN AVERogers Park49Completed16 daysInternetCity 311
8/24/20265332 S LATROBE AVEGarfield Ridge23Completed1 dayPhone CallCity 311
8/24/20265224 S LONG AVEGarfield Ridge23Completed1 dayPhone CallCity 311
8/24/2026345 W 42ND PLFuller Park3Completed1 dayPhone CallCity 311
8/24/20263673 N ELSTON AVEIrving Park33Completed15 daysInternetCity 311
8/24/20263350 N NARRAGANSETT AVEDunning36Completed10 daysMobile DeviceCity 311
8/24/20261446 W HIGHLAND AVEEdgewater48Completed1 dayPhone CallCity 311
8/24/20262602 N MCVICKER AVEBelmont Cragin30Completed9 daysInternetCity 311
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