RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4449 locations in the last 30 days (4635 reports) · Last sighting 13 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/29/202611303 S STEWART AVERoseland21Completed3 daysInternetCity 311
6/27/202611115 S BISHOP STMorgan Park21Completed5 daysPhone CallCity 311
10/7/202611350 S UNION AVERoseland21Completed12 daysMobile DeviceCity 311
10/3/202611527 S EGGLESTON AVEWest Pullman21Completed13 daysPhone CallCity 311
7/7/20261473 W 114TH PLMorgan Park21Completed8 daysInternetCity 311
10/3/20259960 S THROOP STWashington Heights21Completed5 daysPhone CallCity 311
3/26/20269900 S PEORIA STWashington Heights21Completed1 dayPhone CallCity 311
4/16/202611159 S GREEN STMorgan Park21Completed1 dayPhone CallCity 311
9/8/202511320 S STEWART AVERoseland21Completed10 daysPhone CallCity 311
10/3/202612026 S WALLACE STWest Pullman21Completed13 daysInternetCity 311
9/8/20258553 S LOOMISAuburn Gresham21Completed10 daysSalesforce Mobile AppCity 311
3/13/202611027 S VINCENNES AVEMorgan Park21Completed3 daysPhone CallCity 311
8/29/2025448 W 118TH STWest Pullman21Completed6 daysAlderman's OfficeCity 311
7/7/20261473 W 114TH PLMorgan Park21Completed8 daysInternetCity 311
7/6/20268831 S LAFLIN STAuburn Gresham21Completed1 dayInternetCity 311
8/28/202511353 S WALLACE STRoseland21Completed7 daysPhone CallCity 311
9/16/20258522 S BISHOP STAuburn Gresham21Completed9 daysPhone CallCity 311
10/22/20258915 S ABERDEEN STWashington Heights21Completed6 daysPhone CallCity 311
8/29/202510328 S WALLACE STRoseland21Completed6 daysPhone CallCity 311
7/7/20261401 W 110TH STMorgan Park21Completed8 daysInternetCity 311
3/26/202610332 S UNION AVERoseland21Completed1 dayMobile DeviceCity 311
8/23/2025546 W 88TH STAuburn Gresham21Completed12 daysMobile DeviceCity 311
9/9/20251427 W 109TH PLMorgan Park21Completed9 daysPhone CallCity 311
10/22/20258716 S MAY STAuburn Gresham21Completed6 daysPhone CallCity 311
8/25/20258918 S CARPENTER STWashington Heights21Completed10 daysPhone CallCity 311
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