RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4340 locations in the last 30 days (4504 reports) · Last sighting 23 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/24/20256102 S HERMITAGE AVEWest Englewood15Completed7 daysAlderman's OfficeCity 311
10/24/20256624 S TROY STChicago Lawn14Completed3 daysPhone CallCity 311
10/24/20252537 W 107TH STMorgan Park19Completed6 daysAlderman's OfficeCity 311
10/24/20259804 S MUSKEGON AVESouth Deering10Completed3 daysPhone CallCity 311
10/24/20256808 S RACINE AVEWest Englewood17Completed4 daysPhone CallCity 311
10/24/20251446 W DIVERSEY AVELake View32Completed5 daysPhone CallCity 311
10/24/20257612 S HOYNE AVEAuburn Gresham18Completed6 daysPhone CallCity 311
10/24/20255700 W SCHOOL STPortage Park30Completed3 daysPhone CallCity 311
10/24/20253851 W 68TH STWest Lawn23Completed6 daysMobile DeviceCity 311
10/24/20253412 W 66TH STChicago Lawn14Completed3 daysPhone CallCity 311
10/24/2025841 W OAKDALE AVELake View44Completed6 daysPhone CallCity 311
10/24/20258545 W BRYN MAWR AVEO'Hare41Completed5 daysInternetCity 311
10/24/20253516 W 85TH PLAshburn18Completed6 daysPhone CallCity 311
10/24/20253336 N HOYNE AVENorth Center32Completed5 daysPhone CallCity 311
10/24/202510829 S FAIRFIELD AVEMorgan Park19Completed6 daysInternetCity 311
10/24/20257250 S DORCHESTER AVESouth Shore8Completed3 daysMobile DeviceCity 311
10/24/20251327 E 72ND STSouth Shore8Completed3 daysMobile DeviceCity 311
10/24/20254252 W WRIGHTWOOD AVEHermosa31Completed7 daysPhone CallCity 311
10/24/20252513 W 71ST STChicago Lawn17Completed4 daysMobile DeviceCity 311
10/24/20255306 S MERRIMAC AVEGarfield Ridge23Completed3 daysMobile DeviceCity 311
10/24/20254252 W WRIGHTWOOD AVEHermosa31Completed6 daysAlderman's OfficeCity 311
10/24/20252839 W SHERWIN AVEWest Ridge50Completed7 daysInternetCity 311
10/24/20251009 N CALIFORNIA AVEWest Town26Completed4 daysInternetCity 311
10/24/20255620 S NEW ENGLAND AVEGarfield Ridge13Completed3 daysPhone CallCity 311
10/24/20255615 S NEW ENGLAND AVEGarfield Ridge13Completed5 daysPhone CallCity 311
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