RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4716 locations in the last 30 days (4873 reports) · Last sighting 12 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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/5/20266111 W BERENICE AVEDunning38Open—InternetCity 311
10/5/20261514 S KILBOURN AVENorth Lawndale24Open—Mobile DeviceCity 311
10/5/20266306 N LENOX AVEForest Glen39Completed4 daysPhone CallCity 311
10/5/20263235 W OLIVE AVENorth Park39Completed4 daysPhone CallCity 311
10/5/20265532 S MASON AVEGarfield Ridge13Open—InternetCity 311
10/5/20264419 N BERNARD STAlbany Park33Completed1 dayPhone CallCity 311
10/5/20268054 S JEFFERY BLVDSouth Chicago8Open—Phone CallCity 311
10/5/20263736 N SHEFFIELD AVELake View44Open—InternetCity 311
10/5/20262134 S WASHTENAW AVESouth Lawndale25Open—Phone CallCity 311
10/5/202611039 S AVENUE NEast Side10Completed8 daysWalk-inCity 311
10/5/202610516 S EGGLESTON AVERoseland21Completed1 dayPhone CallCity 311
10/5/20269741 S HALSTED STWashington Heights21Completed1 dayPhone CallCity 311
10/5/20267456 N GREENVIEW AVERogers Park49Completed8 daysAlderman's OfficeCity 311
10/5/20263829 N LAKEWOOD AVELake View44Open—Phone CallCity 311
10/5/20265932 N OZANAM AVENorwood Park41Open—Phone CallCity 311
10/5/20263250 N DAMEN AVENorth Center32Completed1 dayPhone CallCity 311
10/5/20262308 N MEADE AVEBelmont Cragin36Open—Phone CallCity 311
10/5/20263326 S NORMAL AVEBridgeport11Completed1 dayPhone CallCity 311
10/5/20264453 W AINSLIE STAlbany Park39Completed4 daysPhone CallCity 311
10/5/20264762 N KARLOV AVEAlbany Park39Open—Phone CallCity 311
10/5/202610838 S EGGLESTON AVERoseland21Open—Phone CallCity 311
10/5/20262914 N GRESHAM AVEAvondale35Open—Phone CallCity 311
10/5/20267220 S EBERHART AVEGreater Grand Crossing6Open—InternetCity 311
10/5/20264735 N LAPORTE AVEPortage Park45Open—Alderman's OfficeCity 311
10/5/20262130 N KEELERHermosa35Open—Salesforce Mobile AppCity 311
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