RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4612 locations in the last 30 days (4757 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.

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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/13/202557 W ERIE STNear North Side42Completed1 dayPhone CallCity 311
11/21/2025712 N RUSH STNear North Side2Completed0 daysInternetCity 311
6/29/2026317 N CLARK STNear North Side42Completed10 daysMobile DeviceCity 311
10/27/2025221 W GOETHE STNear North Side2Completed3 daysPhone CallCity 311
11/9/202537 W PEARSON STNear North Side42Completed1 dayInternetCity 311
3/2/20261535 N WELLSNear North Side2Completed2 daysSalesforce Mobile AppCity 311
11/9/202525 W GRAND AVENear North Side42Completed1 dayInternetCity 311
7/7/20261447 N WELLS STNear North Side2Completed2 daysPhone CallCity 311
11/20/2025715 N ST CLAIR STNear North Side2Completed1 dayAlderman's OfficeCity 311
8/28/20261422 N ORLEANS STNear North Side27Completed7 daysMobile DeviceCity 311
3/23/202633 E BELLEVUE PLNear North Side42Completed2 daysInternetCity 311
11/20/2025726 N ST CLAIR STNear North Side2Completed1 dayAlderman's OfficeCity 311
9/22/2025830 N MICHIGAN AVENear North Side42Completed4 daysMobile DeviceCity 311
11/3/20251220 N LASALLE DRNear North Side2Completed2 daysInternetCity 311
9/18/20251216 N LA SALLE DRNear North Side2Completed1 dayPhone CallCity 311
3/23/2026425 W EVERGREEN AVENear North Side27Completed1 dayPhone CallCity 311
10/22/20251537 N CLEVELAND AVENear North Side2Completed7 daysMobile DeviceCity 311
3/3/202633 E OAK STNear North Side42Completed0 daysMobile DeviceCity 311
11/12/202542 E SUPERIOR STNear North Side2Completed2 daysInternetCity 311
4/8/20261512 N FREMONT STNear North Side27Completed1 dayInternetCity 311
9/19/2025806 N RUSH STNear North Side42Completed0 daysInternetCity 311
2/22/202649 E CEDAR STNear North Side42Completed2 daysPhone CallCity 311
7/2/2026737 N LA SALLE STNear North Side42Completed6 daysInternetCity 311
2/19/202625 E DIVISION STNear North Side2Completed5 daysMobile DeviceCity 311
3/30/20261365 N MOHAWK STNear North Side2Completed2 daysInternetCity 311
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