RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4285 locations in the last 30 days (4469 reports) · Last sighting 18 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/4/20262801 N KIMBALL AVEAvondale35Completed16 daysMobile DeviceCity 311
6/15/20262801 N KIMBALL AVEAvondale35Completed3 daysMobile DeviceCity 311
10/16/20262801 S KEDZIE AVESouth Lawndale25Open—InternetCity 311
9/1/20262801 S KOSTNER AVESouth Lawndale22Completed15 daysMobile DeviceCity 311
5/7/20262801 W 55TH STGage Park15Completed1 dayAlderman's OfficeCity 311
9/9/20252801 W DEVON AVEWest Ridge50Completed13 daysMobile DeviceCity 311
10/14/20252801 W DEVON AVEWest Ridge50Completed8 daysMobile DeviceCity 311
5/12/20262801 W FARGO AVEWest Ridge50Completed2 daysPhone CallCity 311
8/28/20252801 W FULLERTON AVELogan Square1Completed14 daysInternetCity 311
4/20/20262801 W FULLERTON AVELogan Square1Completed2 daysInternetCity 311
6/17/20262801 W FULLERTON AVELogan Square1Completed5 daysMobile DeviceCity 311
8/11/20252801 W IRVING PARK RDIrving Park35Completed11 daysInternetCity 311
8/24/20252802 N WOLCOTT AVENorth Center32Completed12 daysMobile DeviceCity 311
8/29/20252802 N WOLCOTT AVENorth Center32Completed7 daysInternetCity 311
9/19/20252802 N WOLCOTT AVENorth Center32Completed3 daysPhone CallCity 311
7/29/20262802 S MILLARD AVESouth Lawndale22Completed9 daysPhone CallCity 311
11/13/20252802 S WENTWORTH AVEArmour Square11Completed1 dayMobile DeviceCity 311
8/19/20262802 W 21ST STSouth Lawndale25Completed14 daysInternetCity 311
8/14/20262802 W CHICAGO AVEWest Town36Completed12 daysInternetCity 311
8/24/20262802 W FARRAGUT AVELincoln Square39Completed15 daysPhone CallCity 311
6/29/20262803 E 83RD STSouth Chicago7Completed9 daysInternetCity 311
9/4/20262803 N MOZART STAvondale35Completed12 daysMobile DeviceCity 311
10/17/20252803 N RIDGEWAY AVEAvondale35Completed5 daysInternetCity 311
5/20/20262803 S KILDARE AVESouth Lawndale22Completed1 dayMobile DeviceCity 311
10/1/20262803 W BIRCHWOOD AVEWest Ridge50Completed14 daysPhone CallCity 311
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