RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4391 locations in the last 30 days (4575 reports) · Last sighting 18 hours ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/17/20263510 N OZANAM AVEDunning38Completed12 daysInternetCity 311
2/18/20266016 W BERENICE AVEDunning38Completed1 dayMobile DeviceCity 311
9/3/20266137 W ADDISON STDunning30Completed14 daysMobile DeviceCity 311
1/13/20263425 N HARLEMDunning38Completed1 daySalesforce Mobile AppCity 311
8/9/20267141 W ADDISON STDunning38Completed3 daysInternetCity 311
10/17/20253239 N OSAGE AVEDunning38Completed3 daysPhone CallCity 311
5/16/20263904 N NORDICA AVEDunning38Completed4 daysInternetCity 311
8/24/20266101 W PATTERSON AVEDunning38Completed1 dayMobile DeviceCity 311
1/22/20263500 N OZARK AVEDunning38Completed1 dayPhone CallCity 311
9/1/20263632 N NEVA AVEDunning38Completed14 daysPhone CallCity 311
9/1/20263632 N NEVA AVEDunning38Completed14 daysPhone CallCity 311
10/14/20253542 N OSCEOLA AVEDunning38Completed6 daysMobile DeviceCity 311
10/14/20253643 N ODELL AVEDunning38Completed6 daysAlderman's OfficeCity 311
5/15/20264250 N OAK PARK AVEDunning38Completed5 daysInternetCity 311
2/3/20263912 N NORA AVEDunning38Completed1 dayAlderman's OfficeCity 311
6/18/20263949 N OCONTO AVEDunning38Completed6 daysPhone CallCity 311
5/21/20263339 N NAGLE AVEDunning36Completed1 dayPhone CallCity 311
6/20/20263919 N OLEANDER AVEDunning38Completed4 daysMobile DeviceCity 311
10/11/20253525 N NEVA AVEDunning38Completed9 daysInternetCity 311
6/18/20263327 N NEW ENGLAND AVEDunning38Completed6 daysPhone CallCity 311
6/18/20267800 W BELMONT AVEDunning38Completed6 daysPhone CallCity 311
9/25/20253225 N NATCHEZ AVEDunning38Completed10 daysInternetCity 311
6/22/20267912 W BELMONT AVEDunning38Completed2 daysMobile DeviceCity 311
10/5/20253944 N NEW ENGLAND AVEDunning38Completed11 daysMobile DeviceCity 311
8/31/20263225 N NATCHEZ AVEDunning38Completed15 daysInternetCity 311
Page 823 of 2,333
PreviousNext