RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4610 locations in the last 30 days (4762 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
10/14/20255142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
10/2/20253428 W 54TH PLGage Park14Completed13 daysInternetCity 311
10/2/20254750 S KOMENSKY AVEArcher Heights14Completed13 daysPhone CallCity 311
10/14/20254746 S HAMLIN AVEArcher Heights14Completed1 dayPhone CallCity 311
8/18/20254358 S KARLOV AVEArcher Heights14Completed1 dayPhone CallCity 311
5/20/20264737 S HARDING AVEArcher Heights14Completed5 daysPhone CallCity 311
12/16/20255817 S ST LOUIS AVEGage Park14Completed1 dayMobile DeviceCity 311
9/10/20263326 W 60TH STChicago Lawn14Completed12 daysPhone CallCity 311
12/1/20255303 S FRANCISCO AVEGage Park14Completed1 dayPhone CallCity 311
12/17/20254603 S KEDZIE AVEBrighton Park14Completed1 dayInternetCity 311
12/18/20255836 S ALBANY AVEGage Park14Completed0 daysMobile DeviceCity 311
8/7/20254713 S TRIPP AVEArcher Heights14Completed12 daysPhone CallCity 311
10/1/20254526 S KOLMAR AVEArcher Heights14Completed14 daysAlderman's OfficeCity 311
9/10/20264700 S KEDZIE AVEBrighton Park14Completed12 daysMobile DeviceCity 311
12/18/20254409 S KOMENSKY AVEArcher Heights14Completed1 dayPhone CallCity 311
8/7/20254946 S KOSTNER AVEArcher Heights14Completed12 daysMobile DeviceCity 311
9/10/20265201 S SACRAMENTO AVEGage Park14Completed12 daysInternetCity 311
8/21/20254910 S KEDVALE AVEArcher Heights14Completed7 daysPhone CallCity 311
8/7/20255024 S KNOX AVEGarfield Ridge14Completed12 daysPhone CallCity 311
12/20/20255424 S MOZART STGage Park14Completed1 dayPhone CallCity 311
12/21/20255142 S HOMAN AVEGage Park14Completed1 dayPhone CallCity 311
12/21/20253811 W 46TH STArcher Heights14Completed1 dayPhone CallCity 311
8/22/20254819 S KOSTNER AVEArcher Heights14Completed6 daysInternetCity 311
9/10/20263128 W 54TH STGage Park14Completed11 daysMobile DeviceCity 311
9/29/20255329 S CAMPBELL AVEGage Park14Completed4 daysInternetCity 311
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