RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4533 locations in the last 30 days (4681 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.

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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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20263349 N CLIFTON AVELake View44Open—Phone CallCity 311
10/2/20262546 W MEDILL AVELogan Square1Open—InternetCity 311
10/2/2026852 W FULTON MARKETNear West Side27Open—InternetCity 311
10/2/20266551 S KEDVALE AVEWest Lawn13Open—InternetCity 311
10/2/20264016 N CLARK STLake View46Open—InternetCity 311
10/2/20264001 S ARTESIAN AVEBrighton Park12Open—Mobile DeviceCity 311
10/2/20264330 N KIMBALL AVEIrving Park33Open—Mobile DeviceCity 311
10/2/20264331 N BERNARD STIrving Park33Open—Mobile DeviceCity 311
10/2/20267110 S VERNON AVEGreater Grand Crossing6Open—Phone CallCity 311
10/2/20264326 W THOMAS STHumboldt Park37Open—Mobile DeviceCity 311
10/2/20261951 N HALSTED STLincoln Park43Open—Mobile DeviceCity 311
10/2/2026369 N AVERS AVEWest Garfield Park37Open—Phone CallCity 311
10/2/20263521 W 82ND PLAshburn18Open—Phone CallCity 311
10/2/202610800 S HAMLIN AVEMount Greenwood19Open—Phone CallCity 311
10/2/20264722 W MONROE STAustin28Open—Phone CallCity 311
10/2/20263826 W GLADYS AVEWest Garfield Park28Open—Phone CallCity 311
10/2/20264609 S EMERALD AVENew City15Open—Phone CallCity 311
10/2/20266707 S CHAPPEL AVESouth Shore5Open—InternetCity 311
10/2/20264047 N MELVINA AVEPortage Park38Open—Phone CallCity 311
10/2/20261228 W DIVERSEY AVELake View32Open—Phone CallCity 311
10/2/20263725 W 83RD PLAshburn18Open—Mobile DeviceCity 311
10/2/20262157 N DAMEN AVELogan Square32Open—Mobile DeviceCity 311
10/2/20266200 W BELMONT AVEDunning30Open—Phone CallCity 311
10/2/20269853 S COMMERCIAL AVESouth Deering10Open—Alderman's OfficeCity 311
10/2/20264828 N NEW ENGLAND AVENorwood Park41Open—InternetCity 311
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