RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4630 locations in the last 30 days (4798 reports) · Last sighting 10 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.

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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/19/2026917 W WEBSTER AVELincoln Park43Completed2 daysInternetCity 311
12/12/2025917 W RANDOLPH STNear West Side27Completed3 daysInternetCity 311
7/22/2026917 W LAKESIDE PLUptown46Completed7 daysMobile DeviceCity 311
9/14/2025917 W EASTWOOD AVEUptown46Completed9 daysPhone CallCity 311
8/16/2026917 W EASTWOOD AVEUptown46Completed16 daysMobile DeviceCity 311
8/8/2026917 W EASTWOOD AVEUptown46Completed16 daysPhone CallCity 311
11/24/2025917 W 59TH STEnglewood16Completed1 dayPhone CallCity 311
5/23/2026917 W 34TH STBridgeport11Completed4 daysPhone CallCity 311
4/3/2026917 W 34TH PLBridgeport11Completed4 daysPhone CallCity 311
8/18/2026917 S MILLER STNear West Side34Completed6 daysInternetCity 311
6/12/2026917 N RIDGEWAY AVEHumboldt Park27Completed4 daysInternetCity 311
2/23/2026917 N RIDGEWAY AVEHumboldt Park27Completed2 daysPhone CallCity 311
8/9/2025917 N RIDGEWAY AVEHumboldt Park27Completed11 daysMobile DeviceCity 311
7/6/2026917 N LEAMINGTON AVEAustin37Completed8 daysAlderman's OfficeCity 311
8/20/2026917 N LEAMINGTON AVEAustin37Completed13 daysPhone CallCity 311
7/20/2026917 N LEAMINGTON AVEAustin37Completed1 dayPhone CallCity 311
9/17/2026917 N LEAMINGTON AVEAustin37Completed0 daysPhone CallCity 311
3/17/2026917 N HARDING AVEHumboldt Park37Completed1 dayPhone CallCity 311
3/21/2026917 N HARDING AVEHumboldt Park37Completed2 daysMobile DeviceCity 311
11/30/2025917 N HARDING AVEHumboldt Park37Completed1 dayPhone CallCity 311
2/2/2026916 W BELMONT AVELake View44Completed1 dayInternetCity 311
1/13/2026916 W BELMONT AVELake View44Completed1 dayInternetCity 311
2/23/2026916 W BELMONT AVELake View44Completed2 daysInternetCity 311
7/27/2025916 W BARRY AVELake View44Completed8 daysInternetCity 311
8/10/2026916 W ARMITAGE AVELincoln Park43Completed15 daysInternetCity 311
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