RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4526 locations in the last 30 days (4692 reports) · Last sighting 12 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

57,418 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20262300 W 48TH STNew City15Completed19 daysAlderman's OfficeCity 311
1/23/20262300 W 48TH STNew City15Completed3 daysPhone CallCity 311
1/23/20262300 W 50TH PLGage Park15Completed3 daysPhone CallCity 311
6/29/20262300 W 50TH STGage Park15Completed7 daysPhone CallCity 311
7/31/20262300 W 50TH STGage Park15Completed19 daysAlderman's OfficeCity 311
7/31/20262300 W 51ST STGage Park15Completed19 daysAlderman's OfficeCity 311
6/29/20262300 W 51ST STGage Park15Completed7 daysPhone CallCity 311
1/23/20262300 W 51ST STGage Park15Completed4 daysPhone CallCity 311
1/23/20262300 W 51ST STGage Park15Completed3 daysPhone CallCity 311
7/10/20262300 W CHICAGO AVEWest Town36Completed6 daysPhone CallCity 311
9/24/20252300 W GIDDINGS STLincoln Square47Completed9 daysInternetCity 311
5/14/20262300 W GRANVILLE AVEWest Ridge50Completed0 daysPhone CallCity 311
8/24/20262300 W JACKSON BLVDNear West Side27Completed8 daysPhone CallCity 311
10/4/20262300 W LUNT AVEWest Ridge50Completed11 daysMobile DeviceCity 311
10/25/20252300 W LUNT AVEWest Ridge50Completed6 daysMobile DeviceCity 311
2/28/20262300 W MELROSE STNorth Center32Completed3 daysMobile DeviceCity 311
12/22/20252300 W WALTON STWest Town36Completed2 daysPhone CallCity 311
8/12/20262300 W WASHINGTON BLVDNear West Side27Completed13 daysPhone CallCity 311
8/3/20252300 W WASHINGTON BLVDNear West Side27Completed3 daysPhone CallCity 311
9/3/20252301 E 79TH STSouth Chicago7Completed9 daysPhone CallCity 311
8/6/20252301 N BOSWORTH AVELincoln Park2Completed13 daysAlderman's OfficeCity 311
3/27/20262301 N KARLOVHermosa35Completed3 daysSalesforce Mobile AppCity 311
2/10/20262301 N KARLOVHermosa35Completed1 daySalesforce Mobile AppCity 311
5/21/20262301 N KNOX AVEBelmont Cragin31Completed6 daysMobile DeviceCity 311
2/12/20262301 N KNOX AVEBelmont Cragin31Completed1 dayInternetCity 311
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