RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4580 locations in the last 30 days (4745 reports) · Last sighting 11 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.

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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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20261601 W 43RD STNew City15Completed18 daysAlderman's OfficeCity 311
8/14/20265406 N ORIOLE AVENorwood Park41Completed18 daysInternetCity 311
8/14/20265511 N NORMANDY AVENorwood Park41Completed18 daysInternetCity 311
7/31/20261908 W BERWYN AVELincoln Square40Completed18 daysInternetCity 311
7/31/20262501 W 50TH STGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20262500 W 50TH STGage Park15Completed18 daysAlderman's OfficeCity 311
8/1/20253408 N KILDARE AVEIrving Park30Completed18 daysInternetCity 311
7/31/20265001 S ARTESIAN AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20265001 S CAMPBELL AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20265001 S MAPLEWOOD AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20265001 S ROCKWELL STGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20265001 S TALMAN AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20265001 S WASHTENAW AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/30/20265514 W HUTCHINSON STPortage Park38Completed18 daysMobile DeviceCity 311
7/31/20255743 N DRAKE AVENorth Park39Completed18 daysInternetCity 311
7/31/20265001 S FAIRFIELD AVEGage Park15Completed18 daysPhone CallCity 311
7/31/20265001 S CALIFORNIA AVEGage Park15Completed18 daysAlderman's OfficeCity 311
8/14/20265255 N OLEANDER AVENorwood Park41Completed18 daysPhone CallCity 311
7/30/20265356 W BELLE PLAINE AVEPortage Park38Completed18 daysInternetCity 311
7/31/20264931 S ARTESIAN AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20264901 S MAPLEWOOD AVEGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20264701 S MAPLEWOOD AVEBrighton Park15Completed18 daysAlderman's OfficeCity 311
7/31/20264901 S ROCKWELL STGage Park15Completed18 daysAlderman's OfficeCity 311
7/31/20264701 S TALMAN AVEBrighton Park15Completed18 daysAlderman's OfficeCity 311
7/31/20264701 S CALIFORNIA AVEBrighton Park15Completed18 daysAlderman's OfficeCity 311
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