RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4618 locations in the last 30 days (4772 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
8/27/20255818 N KINGSDALE AVEForest Glen39Completed13 daysPhone CallCity 311
8/27/20252015 S MARSHALL BLVDSouth Lawndale25Completed12 daysMobile DeviceCity 311
8/27/20254133 N LARAMIE AVEPortage Park38Completed7 daysInternetCity 311
8/27/20251045 N LAWNDALE AVEHumboldt Park27Completed13 daysMobile DeviceCity 311
8/27/20252855 W 40TH PLBrighton Park12Completed9 daysPhone CallCity 311
8/27/20251144 N MAYFIELD AVEAustin29Completed13 daysPhone CallCity 311
8/27/20256607 S MARSHFIELD AVEWest Englewood16Completed13 daysMobile DeviceCity 311
8/27/20253642 N OAKLEY AVENorth Center47Completed12 daysPhone CallCity 311
8/27/20252800 W LAWRENCE AVELincoln Square40Completed13 daysMobile DeviceCity 311
8/27/20251614 W GREGORY STEdgewater40Completed13 daysInternetCity 311
8/27/20251037 W 97TH PLWashington Heights21Completed8 daysPhone CallCity 311
8/27/20251455 W RASCHER AVEEdgewater48Completed6 daysInternetCity 311
8/27/20251429 W OLIVE AVEWest Town1Completed13 daysPhone CallCity 311
8/27/20251429 W OLIVE AVEWest Town1Completed15 daysPhone CallCity 311
8/27/20253914 W GLADYS AVEWest Garfield Park28Completed13 daysPhone CallCity 311
8/27/20258120 S ADA STAuburn Gresham17Completed13 daysAlderman's OfficeCity 311
8/27/20255735 S LOOMIS STWest Englewood16Completed13 daysAlderman's OfficeCity 311
8/27/20253639 W 69TH STWest Lawn23Completed8 daysPhone CallCity 311
8/27/20255012 N NOTTINGHAM AVENorwood Park41Completed9 daysInternetCity 311
8/27/20255233 W OHIO STAustin37Completed12 daysPhone CallCity 311
8/27/20255646 S FAIRFIELD AVEGage Park15Completed13 daysInternetCity 311
8/27/20256432 W ARCHER AVEGarfield Ridge23Completed14 daysInternetCity 311
8/27/20251349 W CORNELIA AVELake View44Completed6 daysMobile DeviceCity 311
8/27/20255545 S SAYRE AVEGarfield Ridge13Completed13 daysAlderman's OfficeCity 311
8/27/20251343 W CORNELIA AVELake View44Completed8 daysMobile DeviceCity 311
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