RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4255 locations in the last 30 days (4437 reports) · Last sighting 24 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/12/20262816 W 36TH PLBrighton Park12Completed1 dayMobile DeviceCity 311
9/18/20252816 W 36TH PLBrighton Park12Completed11 daysMobile DeviceCity 311
8/15/20262816 W 36TH PLBrighton Park12Completed5 daysMobile DeviceCity 311
4/8/20262816 W 66TH STChicago Lawn15Completed1 dayMobile DeviceCity 311
3/12/20262816 W 66TH STChicago Lawn15Completed0 daysInternetCity 311
9/22/20252816 W 83RD PLAshburn18Completed1 dayPhone CallCity 311
9/2/20252816 W 83RD PLAshburn18Completed9 daysPhone CallCity 311
9/4/20252816 W DICKENS AVELogan Square1Completed1 dayPhone CallCity 311
11/23/20252816 W PALMER STLogan Square1Completed3 daysPhone CallCity 311
8/14/20252816 W SUMMERDALE AVELincoln Square39Completed12 daysPhone CallCity 311
9/5/20252817 N HARDING AVEAvondale31Completed13 daysMobile DeviceCity 311
8/11/20252817 N KENNETH AVEHermosa31Completed10 daysAlderman's OfficeCity 311
5/4/20262817 N LAKEWOOD AVELake View32Completed3 daysInternetCity 311
4/28/20262817 N MELVINA AVEBelmont Cragin30Completed1 dayInternetCity 311
8/11/20252817 N MOBILE AVEBelmont Cragin30Completed11 daysInternetCity 311
8/12/20252817 N MOBILE AVEBelmont Cragin30Completed10 daysPhone CallCity 311
11/6/20252817 N MOBILE AVEBelmont Cragin30Completed4 daysPhone CallCity 311
10/20/20252817 N MOZART STAvondale35Completed7 daysInternetCity 311
10/4/20252817 N MOZART STAvondale35Completed10 daysInternetCity 311
6/22/20262817 N OAK PARK AVEMontclare36Completed4 daysPhone CallCity 311
10/13/20252817 N RICHMOND STAvondale35Completed8 daysMobile DeviceCity 311
8/11/20262817 N RICHMOND STAvondale35Completed14 daysMobile DeviceCity 311
10/24/20262817 N TALMAN AVEAvondale35Open—InternetCity 311
10/4/20262817 N TALMAN AVEAvondale35Completed16 daysPhone CallCity 311
9/12/20252817 S UNION AVEBridgeport11Completed7 daysMobile DeviceCity 311
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