RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4393 locations in the last 30 days (4555 reports) · Last sighting 20 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/30/20258252 W IRVING PARK RDDunning38Completed1 dayPhone CallCity 311
9/26/20258252 W IRVING PARK RDDunning38Completed3 daysPhone CallCity 311
12/4/20258252 S ADA STAuburn Gresham17Completed1 dayPhone CallCity 311
4/27/20268252 S ADA STAuburn Gresham17Completed2 daysPhone CallCity 311
7/24/20268251 W IRVING PARK RDDunning38Completed5 daysMobile DeviceCity 311
1/13/20268251 W IRVING PARK RDDunning38Completed1 dayMobile DeviceCity 311
10/28/20258251 W IRVING PARK RDDunning38Completed3 daysMobile DeviceCity 311
10/10/20258251 S PULASKI RDAshburn18Completed11 daysAlderman's OfficeCity 311
10/23/20258251 S PULASKI RDAshburn18Completed7 daysPhone CallCity 311
7/30/20268250 W BELMONT AVEDunning38Completed13 daysPhone CallCity 311
7/2/20268250 W BELMONT AVEDunning38Completed11 daysPhone CallCity 311
8/1/20268250 W BELMONT AVEDunning38Completed11 daysPhone CallCity 311
6/23/20268250 W BELMONT AVEDunning38Completed1 dayPhone CallCity 311
6/30/20268250 W BELMONT AVEDunning38Completed9 daysPhone CallCity 311
8/3/20268250 S WHIPPLE STAshburn18Completed10 daysPhone CallCity 311
11/1/20258250 S KENWOOD AVEAvalon Park8Completed2 daysMobile DeviceCity 311
9/18/2026824 W WEBSTER AVELincoln Park43Open—InternetCity 311
7/8/2026824 W WEBSTER AVELincoln Park43Completed6 daysInternetCity 311
8/15/2026824 W WEBSTER AVELincoln Park43Completed12 daysInternetCity 311
4/19/2026824 W NEWPORT AVELake View44Completed1 dayInternetCity 311
8/7/2025824 W NEWPORT AVELake View44Completed13 daysInternetCity 311
7/15/2026824 W NEWPORT AVELake View44Completed7 daysInternetCity 311
10/10/2025824 W DAKIN STLake View46Completed10 daysInternetCity 311
8/1/2025824 W DAKIN STLake View46Completed11 daysPhone CallCity 311
4/9/2026824 W ARMITAGE AVELincoln Park43Completed1 dayPhone CallCity 311
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