RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4385 locations in the last 30 days (4569 reports) · Last sighting 19 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/25/20266232 W GRACE STDunning38Completed10 daysInternetCity 311
8/25/20266526 W IRVING PARK RDDunning38Completed9 daysInternetCity 311
3/22/20267421 W IRVING PARK RDDunning38Completed1 dayInternetCity 311
6/28/20266241 W GRACE STDunning38Completed8 daysInternetCity 311
8/4/20263624 N PIONEER AVEDunning38Completed8 daysInternetCity 311
3/2/20266125 W CORNELIA AVEDunning30Completed1 dayMobile DeviceCity 311
9/3/20263525 N OTTAWA AVEDunning38Completed13 daysPhone CallCity 311
10/9/20256340 W BELMONT AVEDunning30Completed7 daysPhone CallCity 311
8/20/20263719 N NOTTINGHAM AVEDunning38Completed13 daysMobile DeviceCity 311
1/10/20263932 N NOTTINGHAM AVEDunning38Completed2 daysInternetCity 311
7/31/20263525 N NORMANDY AVEDunning38Completed18 daysPhone CallCity 311
6/29/20263242 N NATCHEZ AVEDunning38Completed7 daysMobile DeviceCity 311
8/9/20264141 N PITTSBURGH AVEDunning38Completed3 daysMobile DeviceCity 311
9/1/20263632 N NEVA AVEDunning38Completed14 daysPhone CallCity 311
8/19/20267548 W ADDISON STDunning38Completed12 daysInternetCity 311
10/12/20253307 N OZANAM AVEDunning38Completed8 daysPhone CallCity 311
7/30/20253909 N NEVA AVEDunning38Completed8 daysAlderman's OfficeCity 311
9/16/20253916 N ODELL AVEDunning38Completed9 daysInternetCity 311
7/25/20263401 N OCONTO AVEDunning38Completed17 daysMobile DeviceCity 311
7/25/20263534 N OCTAVIA AVEDunning38Completed17 daysInternetCity 311
8/21/20263855 N NOTTINGHAM AVEDunning38Completed12 daysPhone CallCity 311
10/9/20263625 N OCTAVIA AVEDunning38Completed4 daysPhone CallCity 311
8/17/20263817 N PITTSBURGH AVEDunning38Completed10 daysInternetCity 311
11/2/20257710 W BELMONT AVEDunning38Completed1 dayInternetCity 311
11/9/20253113 N OLEANDER AVEDunning29Completed3 daysPhone CallCity 311
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