RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4423 locations in the last 30 days (4577 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/5/20266059 S KILPATRICK AVEClearing13Completed0 daysMobile DeviceCity 311
4/1/20266059 S KILDARE AVEWest Lawn13Completed0 daysMobile DeviceCity 311
9/15/20266058 W WELLINGTON AVEBelmont Cragin30Completed14 daysMobile DeviceCity 311
10/15/20256058 W WAVELAND AVEDunning38Completed6 daysInternetCity 311
5/26/20266058 W EASTWOOD AVEPortage Park45Completed2 daysPhone CallCity 311
3/20/20266058 W BYRON STDunning38Completed3 daysPhone CallCity 311
6/30/20266058 W BERENICE AVEDunning38Completed9 daysInternetCity 311
7/9/20266058 W BERENICE AVEDunning38Completed7 daysInternetCity 311
9/30/20266058 S TROY STChicago Lawn14Completed13 daysAlderman's OfficeCity 311
9/18/20256058 S NASHVILLE AVEClearing13Completed12 daysInternetCity 311
9/18/20256058 S MEADE AVEClearing13Completed13 daysInternetCity 311
5/10/20266058 S MEADE AVEClearing13Completed2 daysInternetCity 311
10/7/20266058 S HONORE STWest Englewood15Open—Alderman's OfficeCity 311
2/18/20266058 S CENTRAL AVEClearing13Completed1 dayPhone CallCity 311
10/20/20256058 S ALBANY AVEChicago Lawn14Completed7 daysPhone CallCity 311
7/16/20266058 N CAMPBELL AVEWest Ridge40Completed8 daysMobile DeviceCity 311
8/27/20266056 W MELROSE STDunning30Completed12 daysPhone CallCity 311
9/14/20266056 W EDDY STDunning30Completed14 daysPhone CallCity 311
2/23/20266056 S WOLCOTT AVEWest Englewood16Completed1 dayInternetCity 311
3/22/20266055 W PETERSON AVENorwood Park45Completed2 daysMobile DeviceCity 311
2/26/20266055 W FLETCHER STBelmont Cragin30Completed1 dayPhone CallCity 311
11/6/20256055 W FLETCHER STBelmont Cragin30Completed4 daysPhone CallCity 311
8/11/20266055 W DAKIN STDunning38Completed14 daysMobile DeviceCity 311
10/10/20266055 W BARRY AVEBelmont Cragin30Open—Phone CallCity 311
10/6/20256055 S PARKSIDE AVEClearing13Completed9 daysAlderman's OfficeCity 311
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