RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4615 locations in the last 30 days (4767 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/4/20251905 N KOSTNER AVEHermosa26Completed1 dayInternetCity 311
5/14/20266007 S SACRAMENTO AVEChicago Lawn15Completed1 dayInternetCity 311
11/4/20252911 N MASON AVEBelmont Cragin30Completed1 dayPhone CallCity 311
5/6/20265238 W BLOOMINGDALE AVEAustin37Completed1 dayPhone CallCity 311
8/12/20251758 N OAK PARK AVEAustin29Completed1 dayPhone CallCity 311
6/22/20265901 W 64TH STClearing13Completed1 dayPhone CallCity 311
6/29/20263506 W 60TH STChicago Lawn14Completed1 dayPhone CallCity 311
6/23/2026304 W 31ST STArmour Square11Completed1 dayPhone CallCity 311
11/6/20258440 S ELIZABETH STAuburn Gresham17Completed1 dayMobile DeviceCity 311
3/2/20261531 W FRY STWest Town1Completed1 dayInternetCity 311
5/18/20263808 N HAMLIN AVEIrving Park30Completed1 dayMobile DeviceCity 311
4/20/20265158 S HAMLIN AVEWest Elsdon23Completed1 dayPhone CallCity 311
11/30/20253620 N HERMITAGE AVELake View47Completed1 dayMobile DeviceCity 311
2/9/20265420 S NAGLE AVEGarfield Ridge23Completed1 dayInternetCity 311
11/2/20257845 S KINGSTON AVESouth Shore7Completed1 dayMobile DeviceCity 311
10/30/20251100 S COLUMBUS DRLoop4Completed1 dayInternetCity 311
5/21/20263328 LITHUANICA AVEBridgeport11Completed1 dayPhone CallCity 311
6/22/20265511 W EDDY STPortage Park30Completed1 dayPhone CallCity 311
5/4/20263926 W 102ND STMount Greenwood19Completed1 dayPhone CallCity 311
6/9/20266243 W GRACE STDunning38Completed1 dayInternetCity 311
2/18/20263724 N NORA AVEDunning38Completed1 dayMobile DeviceCity 311
4/23/20265237 W SCHOOL STPortage Park31Completed1 dayMobile DeviceCity 311
2/10/20266842 S TALMAN AVEChicago Lawn16Completed1 dayPhone CallCity 311
6/2/20262615 S ST LOUIS AVESouth Lawndale22Completed1 dayPhone CallCity 311
2/8/20266426 N RIDGE AVEWest Ridge50Completed1 dayMobile DeviceCity 311
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