RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4589 locations in the last 30 days (4745 reports) · Last sighting 23 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/26/20262021 N SEMINARY AVELincoln Park43Completed8 daysMobile DeviceCity 311
8/26/20265841 W SUPERIOR STAustin29Completed6 daysPhone CallCity 311
8/26/20264215 S CAMPBELL AVEBrighton Park12Completed9 daysPhone CallCity 311
8/26/20264854 W IOWA STAustin37Completed1 dayPhone CallCity 311
8/26/20261303 W WELLINGTON AVELake View32Completed1 dayPhone CallCity 311
8/26/20265100 N MONITOR AVEJefferson Park45Completed7 daysAlderman's OfficeCity 311
8/26/202611246 S HOMEWOOD AVEMorgan Park19Completed9 daysPhone CallCity 311
8/26/20262229 S WOOD STLower West Side25Completed1 dayPhone CallCity 311
8/26/20263665 N ELSTON AVEIrving Park33Completed13 daysInternetCity 311
8/26/20263934 W 86TH STAshburn18Completed1 dayPhone CallCity 311
8/26/20262913 N BURLING STLake View44Completed8 daysMobile DeviceCity 311
8/26/20267646 S EUCLID AVESouth Shore8Completed1 dayPhone CallCity 311
8/26/20262228 W 19TH STLower West Side25Completed13 daysInternetCity 311
8/26/20263926 W MONROE STWest Garfield Park28Completed8 daysPhone CallCity 311
8/26/20266460 W HIGGINS AVENorwood Park41Completed15 daysPhone CallCity 311
8/26/20263901 W 47TH STArcher Heights14Completed13 daysPhone CallCity 311
8/26/20261616 W BALMORAL AVEEdgewater40Completed14 daysMobile DeviceCity 311
8/26/20264243 N KEYSTONE AVEIrving Park39Completed16 daysAlderman's OfficeCity 311
8/26/20263606 W 115TH STMount Greenwood19Completed1 dayMobile DeviceCity 311
8/26/20265118 S UNION AVENew City20Completed8 daysPhone CallCity 311
8/26/20266535 S BISHOP STWest Englewood16Completed14 daysPhone CallCity 311
8/26/20266714 W DIVERSEY AVEMontclare36Completed8 daysPhone CallCity 311
8/26/20266039 N ELSTON AVENorwood Park39Completed14 daysPhone CallCity 311
8/26/2026116 N ABERDEEN STNear West Side27Completed9 daysInternetCity 311
8/26/20264212 S INDIANA AVEGrand Boulevard3Completed1 dayMobile DeviceCity 311
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