RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4526 locations in the last 30 days (4690 reports) · Last sighting 9 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.

32080fewer → more

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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/11/20261417 W CULLERTON STLower West Side25Completed11 daysInternetCity 311
9/11/20262010 S LOOMIS STLower West Side25Completed11 daysInternetCity 311
9/11/20262008 S LOOMIS STLower West Side25Completed11 daysInternetCity 311
9/11/20262006 S LOOMIS STLower West Side25Completed11 daysInternetCity 311
9/11/20261415 W CULLERTON STLower West Side25Completed11 daysInternetCity 311
9/11/20263235 N WILTON AVELake View44Completed13 daysInternetCity 311
9/11/20262004 S LOOMIS STLower West Side25Completed11 daysInternetCity 311
9/11/20264819 S PRINCETONFuller Park20Completed13 daysSalesforce Mobile AppCity 311
9/11/20262000 S LOOMIS STLower West Side25Completed11 daysInternetCity 311
9/11/20263104 S ABERDEEN STBridgeport11Completed12 daysAlderman's OfficeCity 311
9/11/202669 E BELLEVUE PLNear North Side42Completed3 daysInternetCity 311
9/11/20262913 N SACRAMENTO AVEAvondale35Completed13 daysInternetCity 311
9/11/20265125 S TALMAN AVEGage Park14Completed11 daysInternetCity 311
9/11/202610105 S CALIFORNIA AVEBeverly19Completed12 daysInternetCity 311
9/11/20262438 W HADDON AVEWest Town36Completed11 daysMobile DeviceCity 311
9/11/20261648 W TOUHY AVERogers Park49Completed10 daysPhone CallCity 311
9/11/20262432 S DRAKE AVESouth Lawndale22Completed5 daysPhone CallCity 311
9/11/20261428 N CAMPBELL AVEWest Town1Completed12 daysPhone CallCity 311
9/11/20262848 N LOWELL AVEHermosa31Completed12 daysInternetCity 311
9/11/20261249 W DICKENS AVELincoln Park2Completed6 daysInternetCity 311
9/11/20264553 N WOLCOTT AVELincoln Square47Completed11 daysPhone CallCity 311
9/11/20261337 W NEWPORT AVELake View44Completed10 daysPhone CallCity 311
9/11/20264509 N KENNETH AVEIrving Park39Completed14 daysMobile DeviceCity 311
9/11/20263942 N HAMILTON AVENorth Center47Completed11 daysPhone CallCity 311
9/11/20265801 N MOBILE AVENorwood Park45Completed12 daysMobile DeviceCity 311
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