RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4390 locations in the last 30 days (4556 reports) · Last sighting 16 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/22/20251318 N CAMPBELL AVEWest Town26Completed6 daysInternetCity 311
10/22/20256104 W CORNELIA AVEDunning30Completed7 daysMobile DeviceCity 311
10/22/20252439 W CULLOM AVENorth Center47Completed8 daysMobile DeviceCity 311
10/22/20258716 S MAY STAuburn Gresham21Completed6 daysPhone CallCity 311
10/22/20253089 S BONFIELD STBridgeport11Completed6 daysPhone CallCity 311
10/22/20257518 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing6Completed1 dayInternetCity 311
10/22/20258030 S SAGINAW AVESouth Chicago7Completed5 daysMobile DeviceCity 311
10/22/20252418 W THOMAS STWest Town36Completed5 daysInternetCity 311
10/22/20253522 N ASHLAND AVELake View47Completed2 daysInternetCity 311
10/22/20251550 S LUMBER STNear West Side28Completed7 daysInternetCity 311
10/22/20255169 S MICHIGAN AVEWashington Park3Completed5 daysMobile DeviceCity 311
10/22/20251939 N LA CROSSE AVEBelmont Cragin36Completed5 daysInternetCity 311
10/22/20256250 N KENMORE AVEEdgewater48Completed8 daysMobile DeviceCity 311
10/22/20256128 S CHAMPLAIN AVEWoodlawn20Completed5 daysMobile DeviceCity 311
10/22/20255911 S PRINCETON AVEEnglewood20Completed5 daysPhone CallCity 311
10/22/2025427 N LAWLER AVEAustin37Completed8 daysMobile DeviceCity 311
10/22/20253056 N RACINE AVELake View32Completed6 daysPhone CallCity 311
10/22/20254321 W WILCOX STWest Garfield Park28Completed6 daysInternetCity 311
10/22/20255834 W MELROSE STPortage Park30Completed6 daysMobile DeviceCity 311
10/22/202510521 S WALLACE STRoseland21Completed6 daysPhone CallCity 311
10/23/20251012 W 19TH STLower West Side25Completed5 daysMobile DeviceCity 311
10/23/20251543 N WESTERN AVEWest Town1Completed6 daysInternetCity 311
10/23/20255942 W 60TH STClearing13Completed6 daysMobile DeviceCity 311
10/23/20255058 W SCHOOL STPortage Park31Completed6 daysPhone CallCity 311
10/23/20251529 W PEARSON STWest Town1Completed5 daysMobile DeviceCity 311
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