RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4448 locations in the last 30 days (4611 reports) · Last sighting 20 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/9/20257753 S GREENWOOD AVEGreater Grand Crossing8Completed11 daysInternetCity 311
10/9/20252029 N RACINE AVELincoln Park43Completed6 daysInternetCity 311
10/9/2025910 S COLUMBUS DRLoop4Completed1 dayInternetCity 311
10/9/20251960 W BERWYN AVELincoln Square40Completed6 daysMobile DeviceCity 311
10/9/20251132 N AVERS AVEHumboldt Park37Completed6 daysPhone CallCity 311
10/9/20256453 N GLENWOOD AVERogers Park49Completed11 daysInternetCity 311
10/9/20252512 N MENARD AVEBelmont Cragin30Completed7 daysAlderman's OfficeCity 311
10/9/20256611 S ROCKWELL STChicago Lawn16Completed8 daysPhone CallCity 311
10/9/20255155 W BARRY AVEBelmont Cragin31Completed11 daysInternetCity 311
10/9/20253414 W EVERGREEN AVEHumboldt Park26Completed8 daysAlderman's OfficeCity 311
10/9/20256441 S KOLIN AVEWest Lawn13Completed6 daysAlderman's OfficeCity 311
10/9/20254740 N SAWYER AVEAlbany Park33Completed12 daysAlderman's OfficeCity 311
10/9/20256435 S LA CROSSE AVEClearing13Completed11 daysAlderman's OfficeCity 311
10/9/20256336 S LA CROSSE AVEClearing13Completed6 daysAlderman's OfficeCity 311
10/9/20251240 W GRACE STLake View44Completed6 daysInternetCity 311
10/9/20256331 S LAMON AVEClearing13Completed6 daysAlderman's OfficeCity 311
10/9/20255125 S GREENWOOD AVEHyde Park5Completed8 daysPhone CallCity 311
10/9/20253700 W GRENSHAW STNorth Lawndale24Completed8 daysPhone CallCity 311
10/9/20256340 W BELMONT AVEDunning30Completed7 daysPhone CallCity 311
10/9/20252020 N ORLEANS STLincoln Park43Completed6 daysMobile DeviceCity 311
10/9/20256241 N NAPER AVENorwood Park45Completed11 daysInternetCity 311
10/9/20251530 N ARTESIAN AVEWest Town1Completed8 daysInternetCity 311
10/9/20252207 N MAPLEWOOD AVELogan Square1Completed8 daysPhone CallCity 311
10/9/20253906 N SAWYER AVEIrving Park33Completed12 daysPhone CallCity 311
10/9/20252811 S KARLOV AVESouth Lawndale22Completed11 daysPhone CallCity 311
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