RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4444 locations in the last 30 days (4622 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.

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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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/28/20265230 S CORNELL AVEHyde Park5Completed9 daysInternetCity 311
7/28/20265474 S GREENWOOD AVEHyde Park5Completed9 daysInternetCity 311
7/15/20265319 S WOODLAWN AVEHyde Park5Completed13 daysMobile DeviceCity 311
7/28/20261418 E 55TH STHyde Park5Completed9 daysPhone CallCity 311
7/23/20251501 E 56TH STHyde Park5Completed12 daysMobile DeviceCity 311
7/29/20255146 S KENWOOD AVEHyde Park5Completed6 daysMobile DeviceCity 311
7/31/20255237 S INGLESIDE AVEHyde Park5Completed4 daysPhone CallCity 311
7/30/20251137 E HYDE PARK BLVDHyde Park5Completed5 daysPhone CallCity 311
8/17/20265236 S WOODLAWN AVEHyde Park5Completed2 daysPhone CallCity 311
8/2/20255130 S ELLIS AVEHyde Park5Completed11 daysMobile DeviceCity 311
8/9/20265423 S KENWOOD AVEHyde Park5Completed10 daysMobile DeviceCity 311
8/11/2025833 E DREXEL SQUARE DRHyde Park20Completed4 daysMobile DeviceCity 311
8/5/20255220 S KENWOOD AVEHyde Park4Completed7 daysInternetCity 311
8/9/20255220 S KENWOOD AVEHyde Park4Completed3 daysMobile DeviceCity 311
9/13/20265319 S ELLIS AVEHyde Park5Completed9 daysInternetCity 311
8/2/20251554 E 55TH STHyde Park5Completed11 daysPhone CallCity 311
8/28/20265126 S KIMBARK AVEHyde Park4Completed3 daysInternetCity 311
8/28/20265135 S HARPER AVEHyde Park4Completed3 daysPhone CallCity 311
8/28/20265135 S HARPER AVEHyde Park4Completed3 daysPhone CallCity 311
7/31/20265600 S LAKE PARK AVEHyde Park5Completed19 daysMobile DeviceCity 311
8/20/20265131 S GREENWOOD AVEHyde Park5Completed11 daysPhone CallCity 311
8/20/20265401 S CORNELL AVEHyde Park5Completed11 daysInternetCity 311
8/21/20265140 S HYDE PARK BLVDHyde Park5Completed10 daysPhone CallCity 311
8/21/20261015 E HYDE PARK BLVDHyde Park5Completed10 daysMobile DeviceCity 311
8/23/20261018 E 54TH STHyde Park5Completed8 daysMobile DeviceCity 311
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