RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4556 locations in the last 30 days (4711 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/13/20257278 W MYRTLE AVENorwood Park41Completed9 daysAlderman's OfficeCity 311
8/13/20255009 W BYRON STPortage Park30Completed8 daysPhone CallCity 311
8/13/20254119 N CLAREMONT AVENorth Center47Completed14 daysInternetCity 311
8/13/20258715 S HERMITAGE AVEAuburn Gresham18Completed6 daysMobile DeviceCity 311
8/13/20255845 W ROSCOE STPortage Park30Completed8 daysAlderman's OfficeCity 311
8/13/20254659 S DREXEL BLVDKenwood4Completed5 daysInternetCity 311
8/13/20255742 N ORIOLE AVENorwood Park41Completed9 daysPhone CallCity 311
8/13/20256118 S WOODLAWN AVEWoodlawn20Completed5 daysMobile DeviceCity 311
8/13/20252544 W 115TH PLMorgan Park19Completed15 daysMobile DeviceCity 311
8/13/20252254 S KILDARE AVENorth Lawndale22Completed8 daysAlderman's OfficeCity 311
8/13/20259740 S WINSTON AVEWashington Heights21Completed9 daysPhone CallCity 311
8/13/20252254 N KILDARE AVEHermosa35Completed13 daysAlderman's OfficeCity 311
8/13/20252252 N KILDARE AVEHermosa35Completed13 daysAlderman's OfficeCity 311
8/13/20252255 N LOWELL AVEHermosa35Completed13 daysAlderman's OfficeCity 311
8/13/20256708 N BOSWORTH AVERogers Park49Completed13 daysInternetCity 311
8/13/20256314 W FLETCHER STBelmont Cragin30Completed9 daysAlderman's OfficeCity 311
8/13/20257433 S WOODLAWN AVEGreater Grand Crossing5Completed1 dayInternetCity 311
8/13/2025832 W ALTGELD STLincoln Park43Completed9 daysInternetCity 311
8/13/20254846 W WASHINGTON BLVDAustin28Completed14 daysAlderman's OfficeCity 311
8/13/20256741 S SANGAMON STEnglewood16Completed2 daysInternetCity 311
8/13/202510507 S EMERALD AVERoseland21Completed9 daysPhone CallCity 311
8/13/2025212 S OAKLEY BLVDNear West Side27Completed13 daysMobile DeviceCity 311
8/13/20251803 W BELMONT AVENorth Center32Completed12 daysInternetCity 311
8/13/20257100 S JEFFERY BLVDSouth Shore5Completed1 dayPhone CallCity 311
8/13/20254748 S KARLOV AVEArcher Heights14Completed9 daysMobile DeviceCity 311
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