RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4286 locations in the last 30 days (4470 reports) · Last sighting 18 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/10/20266245 W GRACE STDunning38Completed1 dayInternetCity 311
2/18/20263724 N NORA AVEDunning38Completed1 dayMobile DeviceCity 311
2/18/20263019 N OCONTO AVEDunning29Completed1 dayInternetCity 311
5/16/20263225 N NEWLAND AVEDunning36Completed4 daysMobile DeviceCity 311
9/23/20266059 W ROSCOE STDunning30Completed13 daysAlderman's OfficeCity 311
5/14/20263229 N NEWLAND AVEDunning36Completed6 daysInternetCity 311
7/27/20256212 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
6/7/20263225 N NEENAH AVEDunning38Completed4 daysPhone CallCity 311
7/24/20267025 W IRVING PARK RDDunning38Completed17 daysPhone CallCity 311
7/29/20267009 W CORNELIA AVEDunning38Completed16 daysAlderman's OfficeCity 311
8/20/20266316 W SCHOOL STDunning30Completed12 daysAlderman's OfficeCity 311
7/27/20256210 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
7/27/20256204 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
7/28/20257504 W ADDISON STDunning38Completed9 daysInternetCity 311
7/24/20263920 N NORA AVEDunning38Completed18 daysMobile DeviceCity 311
5/11/20266200 W MELROSE STDunning30Completed2 daysAlderman's OfficeCity 311
8/7/20263754 N NOTTINGHAM AVEDunning38Completed14 daysPhone CallCity 311
9/3/20263534 N NATCHEZ AVEDunning38Completed13 daysMobile DeviceCity 311
8/6/20263733 N SAYRE AVEDunning38Completed15 daysPhone CallCity 311
9/11/20263522 N OSCEOLA AVEDunning38Completed11 daysPhone CallCity 311
10/4/20266341 W SCHOOL STDunning30Completed12 daysMobile DeviceCity 311
6/18/20267235 W BELMONT AVEDunning29Completed7 daysAlderman's OfficeCity 311
10/4/20263629 N OCTAVIA AVEDunning38Completed12 daysPhone CallCity 311
9/4/20267238 W BELMONT AVEDunning29Completed13 daysMobile DeviceCity 311
10/5/20266111 W BERENICE AVEDunning38Completed16 daysInternetCity 311
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