RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4630 locations in the last 30 days (4780 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20252634 W LE MOYNE STWest Town26Completed13 daysPhone CallCity 311
9/2/20252131 N LARAMIE AVEBelmont Cragin26Completed13 daysPhone CallCity 311
9/2/20252127 W CHARLESTON STLogan Square32Completed9 daysAlderman's OfficeCity 311
9/2/20252315 W 19TH STLower West Side25Completed6 daysAlderman's OfficeCity 311
9/2/20252238 W OAKDALE AVENorth Center32Completed9 daysInternetCity 311
9/2/20251444 N AVERS AVEHumboldt Park26Completed13 daysMobile DeviceCity 311
9/2/20257041 S YALE AVEGreater Grand Crossing6Completed7 daysPhone CallCity 311
9/2/20255601 S NOTTINGHAM AVEGarfield Ridge13Completed14 daysAlderman's OfficeCity 311
9/2/20251866 N SHEFFIELD AVELincoln Park43Completed10 daysInternetCity 311
9/2/20253942 W 64TH STWest Lawn23Completed13 daysPhone CallCity 311
9/2/20251865 N MAUD AVELincoln Park43Completed10 daysMobile DeviceCity 311
9/2/20255630 S MOODY AVEGarfield Ridge13Completed14 daysPhone CallCity 311
9/2/20257139 S HARDING AVEWest Lawn23Completed13 daysPhone CallCity 311
9/2/20254522 S KNOX AVEGarfield Ridge22Completed10 daysInternetCity 311
9/2/20257139 S HARDING AVEWest Lawn23Completed13 daysPhone CallCity 311
9/2/20251846 N DAMEN AVELogan Square32Completed9 daysMobile DeviceCity 311
9/2/20257938 W ADDISON STDunning38Completed13 daysAlderman's OfficeCity 311
9/2/20251747 W 38TH STMcKinley Park12Completed9 daysInternetCity 311
9/2/20253432 W 107TH STMount Greenwood19Completed9 daysInternetCity 311
9/2/20258430 W GREGORY STO'Hare41Completed10 daysAlderman's OfficeCity 311
9/2/20251866 N SHEFFIELD AVELincoln Park43Completed10 daysMobile DeviceCity 311
9/2/20251847 W WELLINGTON AVENorth Center32Completed10 daysInternetCity 311
9/2/20252519 N ROCKWELL STLogan Square1Completed8 daysPhone CallCity 311
9/2/20252515 N ROCKWELL STLogan Square1Completed8 daysPhone CallCity 311
9/2/20256035 W SCHOOL STDunning30Completed13 daysAlderman's OfficeCity 311
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