RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4615 locations in the last 30 days (4760 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
5/26/20264600 S WASHTENAW AVEBrighton Park12Completed1 dayInternetCity 311
2/25/20262842 S TROY STSouth Lawndale25Completed1 dayInternetCity 311
8/7/20252927 N KOSTNER AVEHermosa31Completed1 dayPhone CallCity 311
2/18/20262148 W WEBSTER AVELogan Square32Completed1 dayPhone CallCity 311
11/17/2025432 W GRANT PLLincoln Park43Completed1 dayPhone CallCity 311
2/15/20261452 N FAIRFIELD AVEWest Town26Completed1 dayInternetCity 311
9/22/20264831 W QUINCY STAustin28Completed1 dayPhone CallCity 311
11/24/20252705 W CARMEN AVELincoln Square40Completed1 dayPhone CallCity 311
11/19/202510905 S EMERALD AVERoseland21Completed1 dayPhone CallCity 311
3/16/20265400 N NATOMA AVENorwood Park41Completed1 dayPhone CallCity 311
3/12/20261856 W 21STLower West Side25Completed1 daySalesforce Mobile AppCity 311
3/26/20263415 W PALMER STLogan Square35Completed1 dayAlderman's OfficeCity 311
3/4/20267015 W SUMMERDALE AVENorwood Park41Completed1 dayPhone CallCity 311
10/6/20251455 W RASCHER AVEEdgewater48Completed1 dayPhone CallCity 311
6/29/20268450 S GREEN STAuburn Gresham17Completed1 dayInternetCity 311
5/27/20263521 N FREMONT STLake View44Completed1 dayPhone CallCity 311
11/19/20255740 W ROSCOE STPortage Park30Completed1 dayPhone CallCity 311
8/12/20262142 W CERMAK RDLower West Side25Completed1 dayPhone CallCity 311
5/26/20265900 N CHRISTIANA AVENorth Park39Completed1 dayPhone CallCity 311
10/1/20251215 N MASON AVEAustin29Completed1 dayPhone CallCity 311
11/17/20253505 W SHAKESPEARE AVELogan Square35Completed1 dayPhone CallCity 311
12/23/20256943 S DAMEN AVEWest Englewood17Completed1 dayPhone CallCity 311
9/29/20251720 W ERIE STWest Town1Completed1 dayPhone CallCity 311
9/13/20262215 W MELROSE STNorth Center32Completed1 dayInternetCity 311
2/9/20262950 N SEELEY AVENorth Center32Completed1 dayInternetCity 311
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