RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4554 locations in the last 30 days (4702 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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/23/20253742 N ASHLAND AVELake View47Completed12 daysInternetCity 311
8/23/20255314 W WINNEMAC AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/23/20255042 N LOCKWOOD AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/23/20257755 W ARDMORE AVENorwood Park41Completed5 daysMobile DeviceCity 311
8/23/2025822 W LILL AVELincoln Park43Completed11 daysInternetCity 311
8/23/20256531 S OAKLEY AVEChicago Lawn16Completed10 daysPhone CallCity 311
8/23/20252634 S WELLS STArmour Square11Completed13 daysInternetCity 311
8/23/2025515 W BARRY AVELake View44Completed12 daysPhone CallCity 311
8/23/20251812 W MELROSE STNorth Center32Completed13 daysInternetCity 311
8/23/20252235 N CLYBOURN AVELincoln Park2Completed5 daysInternetCity 311
8/23/20254106 W CERMAK RDNorth Lawndale24Completed5 daysPhone CallCity 311
8/23/20258526 S KILDARE AVEAshburn18Completed12 daysMobile DeviceCity 311
8/23/20259869 S PROSPECT AVEBeverly19Completed11 daysMobile DeviceCity 311
8/23/20251313 N CAMPBELL AVEWest Town26Completed12 daysPhone CallCity 311
8/23/20251318 N ASTOR STNear North Side43Completed12 daysPhone CallCity 311
8/23/20252616 W EVERGREEN AVEWest Town26Completed12 daysMobile DeviceCity 311
8/23/20255729 N LANSING AVEForest Glen39Completed13 daysPhone CallCity 311
8/23/20255109 W ALTGELD STBelmont Cragin31Completed12 daysMobile DeviceCity 311
8/23/20257211 W SUMMERDALE AVENorwood Park41Completed5 daysInternetCity 311
8/23/20254541 S LAMON AVEGarfield Ridge22Completed5 daysPhone CallCity 311
8/23/2025909 E 52ND STHyde Park20Completed5 daysInternetCity 311
8/23/20251823 S TROY STNorth Lawndale24Completed5 daysPhone CallCity 311
8/23/20255545 S KENNETH AVEWest Elsdon13Completed12 daysPhone CallCity 311
8/23/20251637 N OAK PARK AVEAustin29Completed11 daysInternetCity 311
8/23/20257041 W FARRAGUT AVENorwood Park41Completed5 daysMobile DeviceCity 311
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