RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4616 locations in the last 30 days (4770 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/202611545 S LOOMIS STWest Pullman21Completed17 daysAlderman's OfficeCity 311
8/24/20266161 N HAMILTON AVEWest Ridge40Completed15 daysMobile DeviceCity 311
8/24/202664 E ELM STNear North Side2Completed8 daysPhone CallCity 311
8/24/20262636 W FARRAGUT AVELincoln Square40Completed9 daysAlderman's OfficeCity 311
8/24/20265937 W EDDY STPortage Park30Completed15 daysAlderman's OfficeCity 311
8/24/20265937 W EDDY STPortage Park30Completed15 daysPhone CallCity 311
8/24/20265252 N CALIFORNIA AVELincoln Square39Completed15 daysAlderman's OfficeCity 311
8/24/20265128 N AUSTIN AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/24/20262110 N KEYSTONE AVEHermosa35Completed11 daysAlderman's OfficeCity 311
8/24/20262615 W 25TH STSouth Lawndale25Completed15 daysPhone CallCity 311
8/24/20263221 W 51ST STGage Park14Completed8 daysPhone CallCity 311
8/24/20265924 W WRIGHTWOOD AVEBelmont Cragin30Completed8 daysPhone CallCity 311
8/24/20265923 N CAMPBELL AVEWest Ridge40Completed9 daysPhone CallCity 311
8/24/20262891 S ARCHER AVEBridgeport11Completed10 daysAlderman's OfficeCity 311
8/24/20263721 W 111TH STMount Greenwood19Completed10 daysMobile DeviceCity 311
8/24/20266629 W 63RD STClearing13Completed17 daysInternetCity 311
8/24/20266159 S NASHVILLE AVEClearing13Completed17 daysInternetCity 311
8/24/20264130 N BERNARD STIrving Park33Completed15 daysMobile DeviceCity 311
8/24/20266242 S NORMANDY AVEClearing13Completed11 daysInternetCity 311
8/24/20266150 S RUTHERFORD AVEClearing13Completed11 daysInternetCity 311
8/24/20263349 S LITUANICA AVEBridgeport11Completed9 daysPhone CallCity 311
8/24/20266314 S AUSTIN AVEClearing13Completed11 daysInternetCity 311
8/24/20266243 S PARKSIDE AVEClearing13Completed11 daysInternetCity 311
8/24/20266343 S LAMON AVEClearing13Completed11 daysInternetCity 311
8/24/20266518 S KNOX AVEClearing13Completed11 daysInternetCity 311
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