RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4469 locations in the last 30 days (4642 reports) · Last sighting 21 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/28/20252814 W 21ST STSouth Lawndale25Completed3 daysInternetCity 311
10/28/20255054 N PARKSIDE AVEJefferson Park45Completed2 daysPhone CallCity 311
10/28/20256655 S KENNETH AVEWest Lawn13Completed2 daysPhone CallCity 311
10/28/20252832 S KOMENSKY AVESouth Lawndale22Completed6 daysAlderman's OfficeCity 311
10/28/20252832 S KOMENSKY AVESouth Lawndale22Completed2 daysPhone CallCity 311
10/28/20252720 W FOSTER AVELincoln Square40Completed6 daysMobile DeviceCity 311
10/28/20257345 N DAMEN AVERogers Park49Completed2 daysPhone CallCity 311
10/28/20255202 W 54TH STGarfield Ridge23Completed2 daysInternetCity 311
10/28/20251346 N KEDZIE AVEHumboldt Park26Completed2 daysInternetCity 311
10/28/20258251 W IRVING PARK RDDunning38Completed3 daysMobile DeviceCity 311
10/28/20251724 W SCHOOL STLake View32Completed2 daysInternetCity 311
10/28/20258422 S KNOX AVEAshburn18Completed2 daysInternetCity 311
10/28/20254712 N RACINE AVEUptown46Completed3 daysMobile DeviceCity 311
10/28/20256951 S EMERALD AVEEnglewood6Completed6 daysInternetCity 311
10/28/20254504 S WASHTENAW AVEBrighton Park12Completed3 daysInternetCity 311
10/28/20253367 S KING M L JR DRDouglas4Completed3 daysPhone CallCity 311
10/28/20253010 W 55TH STGage Park14Completed3 daysPhone CallCity 311
10/28/20251442 N LOTUS AVEAustin37Completed2 daysPhone CallCity 311
10/28/20253457 N PACIFIC AVEDunning38Completed3 daysMobile DeviceCity 311
10/28/20255519 W 64TH STClearing13Completed2 daysInternetCity 311
10/28/20255517 W 64TH STClearing13Completed2 daysInternetCity 311
10/28/20253359 N AUSTIN AVEPortage Park30Completed6 daysInternetCity 311
10/28/20253324 W DOUGLAS BLVDNorth Lawndale24Completed2 daysInternetCity 311
10/28/20251708 N LAKE SHORE DR SBLincoln Park43Completed3 daysInternetCity 311
10/28/20256555 N NORTHWEST HWYEdison Park41Completed2 daysInternetCity 311
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