RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4404 locations in the last 30 days (4571 reports) · Last sighting 11 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/27/20256021 W IRVING PARK RDDunning38Completed3 daysPhone CallCity 311
10/27/20251736 W WELLINGTON AVELake View32Completed2 daysMobile DeviceCity 311
10/27/20253609 N AUSTIN AVEPortage Park38Completed3 daysPhone CallCity 311
10/27/20255306 N LIEB AVEJefferson Park45Completed3 daysPhone CallCity 311
10/27/2025650 W GRACE STLake View46Completed4 daysPhone CallCity 311
10/27/20255200 N LIEB AVEJefferson Park45Completed4 daysPhone CallCity 311
10/27/20255400 N LIEB AVEJefferson Park45Completed4 daysPhone CallCity 311
10/27/20253312 N OAKLEY AVENorth Center32Completed2 daysInternetCity 311
10/27/20252927 W FITCH AVEWest Ridge50Completed4 daysInternetCity 311
10/27/20251716 N LAWNDALE AVEHumboldt Park26Completed2 daysAlderman's OfficeCity 311
10/27/20253704 N OAK PARK AVEDunning38Completed3 daysInternetCity 311
10/27/20258039 S PRINCETON AVEChatham17Completed7 daysAlderman's OfficeCity 311
10/27/20256829 S CORNELL AVESouth Shore5Completed2 daysPhone CallCity 311
10/27/202569 E 16TH STNear South Side3Completed2 daysMobile DeviceCity 311
10/27/20252315 N MCVICKER AVEBelmont Cragin36Completed3 daysMobile DeviceCity 311
10/27/20254900 W SUPERIOR STAustin37Completed2 daysPhone CallCity 311
10/27/20252217 W SCHOOL STNorth Center32Completed2 daysInternetCity 311
10/27/20252225 W MEDILL AVELogan Square32Completed2 daysMobile DeviceCity 311
10/27/20252242 W BERWYN AVELincoln Square40Completed4 daysMobile DeviceCity 311
10/27/20251640 W GRACE STLake View47Completed3 daysMobile DeviceCity 311
10/27/20252741 S HARDING AVESouth Lawndale22Completed3 daysInternetCity 311
10/27/20258111 S ELIZABETH STAuburn Gresham17Completed7 daysPhone CallCity 311
10/27/20257749 S PAULINA STAuburn Gresham17Completed7 daysPhone CallCity 311
10/27/20258300 W FOREST PRESERVE AVEDunning38Completed7 daysInternetCity 311
10/27/20252155 N LATROBE AVEBelmont Cragin26Completed2 daysMobile DeviceCity 311
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