RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4408 locations in the last 30 days (4571 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

931 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/13/20266104 W CORNELIA AVEDunning30Open—Mobile DeviceCity 311
10/13/20262018 W 23RD STLower West Side25Open—Mobile DeviceCity 311
10/13/20262651 W RASCHER AVELincoln Square40Open—Mobile DeviceCity 311
10/13/20265419 N WASHTENAW AVELincoln Square40Open—Mobile DeviceCity 311
10/13/20267400 S INDIANA AVEGreater Grand Crossing6Open—Phone CallCity 311
10/13/20263900 W 57TH STWest Elsdon23Open—Phone CallCity 311
10/13/20265644 W 64TH STClearing13Open—InternetCity 311
10/13/20261848 W WASHINGTON BLVDNear West Side27Open—InternetCity 311
10/13/20263620 N NORA AVEDunning38Open—Mobile DeviceCity 311
10/13/20262800 N SEMINARY AVELake View44Open—Mobile DeviceCity 311
10/13/20261420 W JARVIS AVERogers Park49Open—InternetCity 311
10/13/202610532 S INDIANA AVERoseland9Open—Phone CallCity 311
10/13/20269514 S GREEN STWashington Heights21Open—InternetCity 311
10/13/20262454 N SEMINARY AVELincoln Park43Open—Phone CallCity 311
10/13/20262241 W GREENLEAF AVEWest Ridge50Open—Mobile DeviceCity 311
10/13/20264117 W BERTEAU AVEIrving Park39Open—InternetCity 311
10/13/20264334 N HAZEL STUptown46Open—Phone CallCity 311
10/13/20264837 S HOYNE AVENew City15Open—Mobile DeviceCity 311
10/13/20262033 N CLEVELAND AVELincoln Park43Open—Mobile DeviceCity 311
10/13/20264337 N ALBANY AVEIrving Park33Open—InternetCity 311
10/13/20264316 W WRIGHTWOOD AVEHermosa31Open—Phone CallCity 311
10/13/20267609 S MORGAN STAuburn Gresham17Open—Mobile DeviceCity 311
10/13/20264823 W EDDY STPortage Park31Open—Mobile DeviceCity 311
10/13/20262237 N ORCHARD STLincoln Park43Open—Phone CallCity 311
10/13/2026617 W CORNELIA AVELake View46Open—Mobile DeviceCity 311
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