RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4249 locations in the last 30 days (4406 reports) · Last sighting 22 hours ago

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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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/27/20265616 S KARLOV AVEWest Elsdon13Completed11 daysInternetCity 311
7/27/20267200 W LUNT AVEEdison Park41Completed8 daysMobile DeviceCity 311
7/27/20262523 S THROOP STBridgeport11Completed9 daysInternetCity 311
7/27/20265717 S MOODY AVEGarfield Ridge13Completed9 daysAlderman's OfficeCity 311
7/27/20265148 W 63RD PLClearing13Completed8 daysInternetCity 311
7/27/20261620 N AVERS AVEHumboldt Park26Completed11 daysAlderman's OfficeCity 311
7/27/20261345 N KARLOV AVEHumboldt Park36Completed11 daysMobile DeviceCity 311
7/27/20264537 N CAMPBELL AVELincoln Square47Completed11 daysInternetCity 311
7/27/20264053 W HIRSCH STHumboldt Park36Completed10 daysMobile DeviceCity 311
7/27/20264057 W HIRSCH STHumboldt Park36Completed10 daysMobile DeviceCity 311
7/27/20264051 W HIRSCH STHumboldt Park36Completed10 daysMobile DeviceCity 311
7/27/20263230 W OLIVE AVENorth Park39Completed10 daysAlderman's OfficeCity 311
7/27/20265212 S CORNELL AVEHyde Park5Completed1 dayInternetCity 311
7/27/20261618 N AVERS AVEHumboldt Park26Completed11 daysPhone CallCity 311
7/27/20262939 W HOWARD STWest Ridge50Completed9 daysInternetCity 311
7/27/20262524 W FARRAGUT AVELincoln Square40Completed1 dayPhone CallCity 311
7/27/20262628 W 38TH STBrighton Park12Completed14 daysPhone CallCity 311
7/27/20262632 W EASTWOOD AVELincoln Square47Completed11 daysInternetCity 311
7/27/202610032 S EXCHANGE AVESouth Deering10Completed7 daysInternetCity 311
7/27/20262605 W 103RD STBeverly19Completed9 daysPhone CallCity 311
7/27/202610520 S LAWNDALE AVEMount Greenwood19Completed1 dayPhone CallCity 311
7/27/20264417 W JACKSON BLVDWest Garfield Park28Completed1 dayPhone CallCity 311
7/27/20262829 W FARRAGUT AVELincoln Square39Completed10 daysPhone CallCity 311
7/27/20262409 N SPAULDING AVELogan Square35Completed14 daysInternetCity 311
7/27/20261546 N HOMAN AVEHumboldt Park26Completed11 daysInternetCity 311
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