RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4468 locations in the last 30 days (4628 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/11/20266927 S ADA STWest Englewood17Completed12 daysPhone CallCity 311
9/11/20262872 S LOOMISBridgeport11Completed12 daysSalesforce Mobile AppCity 311
9/11/20262335 W HADDON AVEWest Town1Completed12 daysMobile DeviceCity 311
9/11/20263526 S MAPLEWOOD AVEBrighton Park12Completed13 daysMobile DeviceCity 311
9/11/20268037 S GREEN STAuburn Gresham17Completed12 daysPhone CallCity 311
9/11/20261349 N RIDGEWAY AVEHumboldt Park36Completed12 daysInternetCity 311
9/11/20263417 W MELROSE STAvondale35Completed13 daysPhone CallCity 311
9/11/20263027 W PALMER BLVDLogan Square1Completed12 daysAlderman's OfficeCity 311
9/11/20263140 N DAMEN AVENorth Center32Completed12 daysPhone CallCity 311
9/11/20263640 N ARTESIAN AVENorth Center47Completed11 daysInternetCity 311
9/11/20263636 N ARTESIAN AVENorth Center47Completed11 daysInternetCity 311
9/11/20265449 N NATOMA AVENorwood Park41Completed12 daysPhone CallCity 311
9/11/20261416 W IRVING PARK RDLake View47Completed11 daysInternetCity 311
9/11/2026338 W 29TH PLArmour Square11Completed7 daysAlderman's OfficeCity 311
9/11/20267555 N ROGERS AVERogers Park49Completed10 daysAlderman's OfficeCity 311
9/11/20261084 N HERMITAGE AVEWest Town1Completed12 daysInternetCity 311
9/11/20265600 N CENTRAL AVEJefferson Park45Completed12 daysPhone CallCity 311
9/11/20261932 W OHIO STWest Town36Completed13 daysPhone CallCity 311
9/11/20267916 S JUSTINE STAuburn Gresham17Completed12 daysMobile DeviceCity 311
9/11/20261513 S HARDING AVENorth Lawndale24Completed12 daysPhone CallCity 311
9/11/20261512 S HARDING AVENorth Lawndale24Completed12 daysPhone CallCity 311
9/11/20262775 N KENMORE AVELincoln Park43Completed10 daysMobile DeviceCity 311
9/11/20261801 W GRAND AVEWest Town27Completed7 daysMobile DeviceCity 311
9/11/20264343 S CALIFORNIA AVEBrighton Park12Completed13 daysInternetCity 311
9/11/20263700 N SPAULDING AVEIrving Park33Completed13 daysInternetCity 311
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