RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4610 locations in the last 30 days (4762 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/16/2025831 W CORNELIA AVELake View44Completed7 daysInternetCity 311
9/16/20252442 W CORTLAND STLogan Square1Completed9 daysInternetCity 311
9/16/20252318 N HARDING AVELogan Square35Completed10 daysPhone CallCity 311
9/16/20254932 W CORTEZ STAustin37Completed9 daysPhone CallCity 311
9/16/2025713 N CHRISTIANA AVEHumboldt Park27Completed13 daysPhone CallCity 311
9/16/20259704 S COMMERCIAL AVESouth Deering10Completed3 daysInternetCity 311
9/16/20252101 S MICHIGAN AVENear South Side3Completed2 daysPhone CallCity 311
9/16/202511511 S GEast Side10Completed3 daysInternetCity 311
9/16/20258929 S EXCHANGE AVESouth Chicago10Completed3 daysInternetCity 311
9/16/20256618 S BISHOP STWest Englewood16Completed7 daysAlderman's OfficeCity 311
9/16/202510650 S GREEN BAY AVEEast Side10Completed3 daysInternetCity 311
9/16/20255555 N WASHTENAW AVELincoln Square40Completed9 daysPhone CallCity 311
9/16/20256016 W BERENICE AVEDunning38Completed9 daysMobile DeviceCity 311
9/16/20251420 S MILLARD AVENorth Lawndale24Completed9 daysPhone CallCity 311
9/16/20253827 W MAYPOLE AVEWest Garfield Park28Completed9 daysMobile DeviceCity 311
9/16/20257545 W HIGGINS AVENorwood Park41Completed9 daysPhone CallCity 311
9/16/20252815 W FULLERTON AVELogan Square1Completed9 daysMobile DeviceCity 311
9/16/20258522 S BISHOP STAuburn Gresham21Completed9 daysPhone CallCity 311
9/16/20253431W W HARRISON STEast Garfield Park24Completed13 daysMobile DeviceCity 311
9/16/20252112 N SPRINGFIELD AVELogan Square35Completed9 daysPhone CallCity 311
9/16/20251422 S MILLARD AVENorth Lawndale24Completed6 daysPhone CallCity 311
9/16/20255116 W NELSON STBelmont Cragin31Completed9 daysInternetCity 311
9/16/20256353 W HYACINTH STNorwood Park39Completed8 daysAlderman's OfficeCity 311
9/16/2025935 W 116TH STWest Pullman21Completed7 daysInternetCity 311
9/16/20254205 S LOWE AVENew City11Completed8 daysInternetCity 311
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