RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4699 locations in the last 30 days (4852 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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/25/2025919 W WRIGHTWOOD AVELincoln Park43Completed1 dayPhone CallCity 311
8/25/20254553 N WOLCOTT AVELincoln Square47Completed14 daysPhone CallCity 311
8/25/20253621 N PAULINA STLake View47Completed1 dayPhone CallCity 311
8/25/20251511 W HOLLYWOOD AVEEdgewater48Completed8 daysInternetCity 311
8/25/20257221 N WASHTENAW AVEWest Ridge50Completed1 dayPhone CallCity 311
8/25/20255630 N LINCOLN AVEWest Ridge40Completed10 daysMobile DeviceCity 311
8/25/20257748 S ESSEX AVESouth Shore7Completed8 daysPhone CallCity 311
8/25/20256243 N TALMAN AVEWest Ridge50Completed1 dayPhone CallCity 311
8/25/20251621 W NORTH SHORE AVERogers Park49Completed9 daysInternetCity 311
8/25/20253621 W WOLFRAM STAvondale35Completed9 daysInternetCity 311
8/25/20259416 S BURNSIDE AVERoseland8Completed8 daysPhone CallCity 311
8/25/20252339 N KARLOV AVEHermosa35Completed11 daysMobile DeviceCity 311
8/25/20256635 N ARTESIAN AVEWest Ridge50Completed10 daysPhone CallCity 311
8/25/20253014 S BROAD STBridgeport11Completed11 daysInternetCity 311
8/25/20255127 S GREENWOOD AVEHyde Park5Completed2 daysMobile DeviceCity 311
8/25/20259540 S PERRY AVERoseland9Completed9 daysPhone CallCity 311
8/25/20254640 N DOVER STUptown46Completed8 daysMobile DeviceCity 311
8/25/20254411 N HERMITAGE AVEUptown47Completed11 daysMobile DeviceCity 311
8/25/20251523 W JACKSON BLVDNear West Side34Completed1 dayMobile DeviceCity 311
8/25/20257341 S HONORE STWest Englewood17Completed15 daysPhone CallCity 311
8/25/20251513 W JACKSON BLVDNear West Side34Completed1 dayMobile DeviceCity 311
8/25/2025828 W 35TH STBridgeport11Completed9 daysMobile DeviceCity 311
8/25/20257108 S EMERALD AVEEnglewood6Completed2 daysInternetCity 311
8/25/202511042 S HARDING AVEMount Greenwood19Completed10 daysInternetCity 311
8/25/20257247 W PALATINE AVENorwood Park41Completed11 daysMobile DeviceCity 311
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