RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4383 locations in the last 30 days (4545 reports) · Last sighting 22 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/9/20265804 W SCHOOL STPortage Park30Completed15 daysAlderman's OfficeCity 311
9/9/20261417 W ARDMORE AVEEdgewater48Completed16 daysPhone CallCity 311
9/9/20266417 N GLENWOOD AVERogers Park49Completed12 daysPhone CallCity 311
9/9/20263945 N NEWCASTLE AVEDunning38Completed13 daysMobile DeviceCity 311
9/9/20263201 W BERWYN AVENorth Park39Completed15 daysPhone CallCity 311
9/9/20262854 N AVERS AVEAvondale31Completed12 daysPhone CallCity 311
9/9/20269635 S LA SALLE STRoseland9Completed12 daysPhone CallCity 311
9/9/202610435 S WENTWORTH AVERoseland9Completed12 daysPhone CallCity 311
9/9/20264801 S CALUMET AVEGrand Boulevard3Completed14 daysPhone CallCity 311
9/9/20265922 W WARWICK AVEPortage Park38Completed1 dayInternetCity 311
9/9/20265926 W WAVELAND AVEPortage Park38Completed1 dayInternetCity 311
9/9/20267616 N MARSHFIELD AVERogers Park49Completed7 daysPhone CallCity 311
9/9/2026301 E 113TH STRoseland9Completed12 daysAlderman's OfficeCity 311
9/9/2026307 E 113TH STRoseland9Completed12 daysPhone CallCity 311
9/9/20266400 N WAYNE AVERogers Park49Completed12 daysPhone CallCity 311
9/9/20269742 S HOYNE AVEBeverly19Completed14 daysAlderman's OfficeCity 311
9/9/20263608 S UNION AVEBridgeport11Completed9 daysAlderman's OfficeCity 311
9/9/20266959 S INDIANA AVEGreater Grand Crossing6Completed14 daysPhone CallCity 311
9/9/20266812 S EAST END AVESouth Shore5Completed13 daysPhone CallCity 311
9/9/20266810 S EAST END AVESouth Shore5Completed13 daysPhone CallCity 311
9/9/20266809 S EAST END AVESouth Shore5Completed13 daysPhone CallCity 311
9/9/20266808 S EAST END AVESouth Shore5Completed13 daysPhone CallCity 311
9/9/20269560 S GREEN STWashington Heights21Completed14 daysPhone CallCity 311
9/9/20263555 N NORMANDY AVEDunning38Completed13 daysInternetCity 311
9/9/20266800 S DANTE AVESouth Shore5Completed13 daysPhone CallCity 311
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