RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4426 locations in the last 30 days (4587 reports) · Last sighting 16 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/14/20261644 W RASCHER AVEEdgewater40Completed1 dayInternetCity 311
11/20/20255732 S KENWOOD AVEHyde Park5Completed1 dayInternetCity 311
3/4/20262411 W FARGO AVEWest Ridge50Completed1 dayInternetCity 311
5/4/20267649 W GREGORY STNorwood Park41Completed1 dayMobile DeviceCity 311
5/4/2026476 W DEMINGLincoln Park43Completed1 daySalesforce Mobile AppCity 311
4/22/20266512 S KARLOV AVEWest Lawn13Completed1 dayInternetCity 311
4/1/20263346 S WESTERN AVEMcKinley Park12Completed1 dayPhone CallCity 311
11/12/20253707 W 83RD STAshburn18Completed1 dayInternetCity 311
12/18/20256652 W 64TH STClearing13Completed1 dayInternetCity 311
2/1/20264968 N KOLMAR AVEAlbany Park39Completed1 dayInternetCity 311
11/5/20256134 N HAMILTON AVEWest Ridge40Completed1 dayMobile DeviceCity 311
9/17/20255153 W NELSON STBelmont Cragin31Completed1 dayPhone CallCity 311
10/30/20252019 S THROOP STLower West Side25Completed1 dayPhone CallCity 311
4/7/2026711 W JACKSON BLVDNear West Side34Completed1 dayInternetCity 311
1/12/20266336 W BELMONT AVEDunning30Completed1 dayAlderman's OfficeCity 311
2/2/20261055 W BELDEN AVELincoln Park43Completed1 dayAlderman's OfficeCity 311
6/3/20261942 N CALIFORNIA AVELogan Square1Completed1 dayMobile DeviceCity 311
3/5/20265238 S MOBILE AVEGarfield Ridge23Completed1 dayInternetCity 311
2/9/20268543 W BRYN MAWR AVEO'Hare41Completed1 dayInternetCity 311
1/29/20264124 W GEORGE STAvondale31Completed1 dayAlderman's OfficeCity 311
11/6/202524 W 103RD STRoseland9Completed1 dayInternetCity 311
10/29/20254254 N KIMBALLIrving Park33Completed1 daySalesforce Mobile AppCity 311
2/2/20261055 W BELDEN AVELincoln Park43Completed1 dayAlderman's OfficeCity 311
3/31/20264704 W PATTERSON AVEPortage Park30Completed1 dayMobile DeviceCity 311
1/6/20261215 W GRANVILLE AVEEdgewater48Completed1 dayInternetCity 311
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