RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4513 locations in the last 30 days (4668 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

1,046 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/2026755 W CORNELIA AVELake View44Open—Mobile DeviceCity 311
9/21/20267113 S CHAMPLAIN AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
9/21/20267115 S CHAMPLAIN AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
9/21/20261215 W GARFIELD BLVDWest Englewood16Open—Alderman's OfficeCity 311
9/21/20263000 S PRINCETON AVEArmour Square11Completed2 daysAlderman's OfficeCity 311
9/21/20261738 W CHASE AVERogers Park49Open—Phone CallCity 311
9/21/20263044 S KARLOV AVESouth Lawndale22Open—Phone CallCity 311
9/21/20265349 W DRUMMOND PLBelmont Cragin31Open—InternetCity 311
9/21/20264819 W BLOOMINGDALE AVEAustin37Open—InternetCity 311
9/21/2026849 N PAULINA STWest Town1Open—InternetCity 311
9/21/20264831 N KEDVALE AVEAlbany Park39Open—Phone CallCity 311
9/21/20266201 S NARRAGANSETT AVEClearing13Open—InternetCity 311
9/21/20266503 N NEVA AVENorwood Park41Open—Alderman's OfficeCity 311
9/21/20265300 S GREENWOOD AVEHyde Park5Open—Phone CallCity 311
9/21/20266431 S ARTESIAN AVEChicago Lawn16Open—Alderman's OfficeCity 311
9/21/20267048 S HARPER AVESouth Shore5Open—Phone CallCity 311
9/21/20262341 W SUPERIOR STWest Town36Open—Phone CallCity 311
9/21/20261524 W 110TH STMorgan Park21Completed4 daysMobile DeviceCity 311
9/21/20264345 N MONITOR AVEPortage Park38Open—Mobile DeviceCity 311
9/21/20266133 N FOREST GLEN AVEForest Glen39Completed1 dayPhone CallCity 311
9/21/20265244 S MEADE AVEGarfield Ridge23Open—Phone CallCity 311
9/21/20262332 W EASTWOOD AVELincoln Square47Open—Mobile DeviceCity 311
9/21/20264337 W ROSCOE STIrving Park30Open—Phone CallCity 311
9/21/202610000 S HALSTED STWashington Heights21Completed7 daysPhone CallCity 311
9/21/20266994 N TONTY AVEForest Glen45Open—InternetCity 311
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