RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4690 locations in the last 30 days (4841 reports) · Last sighting 17 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20261637 N MONITOR AVEAustin29Completed3 daysMobile DeviceCity 311
3/21/20261637 N MOZART STWest Town26Completed2 daysMobile DeviceCity 311
5/26/20261637 N OAKLEY AVEWest Town32Completed2 daysInternetCity 311
8/23/20251637 N OAK PARK AVEAustin29Completed11 daysInternetCity 311
8/10/20261637 N ROCKWELL STWest Town1Completed9 daysInternetCity 311
2/22/20261637 W 89TH STWashington Heights18Completed1 dayInternetCity 311
6/20/20261637 W BERWYN AVEEdgewater40Completed6 daysMobile DeviceCity 311
8/19/20261637 W BERWYN AVEEdgewater40Completed2 daysMobile DeviceCity 311
8/1/20251637 W MONTROSE AVELake View47Completed12 daysAlderman's OfficeCity 311
7/14/20261638 E 92ND PLCalumet Heights8Completed13 daysPhone CallCity 311
7/23/20261638 E 92ND PLCalumet Heights8Completed4 daysPhone CallCity 311
9/12/20251638 N HAMLIN AVEHumboldt Park26Completed13 daysPhone CallCity 311
4/10/20261638 N MOZART STWest Town26Completed3 daysInternetCity 311
5/8/20261638 N MOZART STWest Town26Completed3 daysInternetCity 311
11/25/20251638 N TALMAN AVEWest Town26Completed3 daysInternetCity 311
8/23/20261638 S ADA STLower West Side25Completed10 daysMobile DeviceCity 311
5/13/20261638 S ALLPORT STLower West Side25Completed6 daysInternetCity 311
3/6/20261638 S RIDGEWAYNorth Lawndale24Completed3 daysSalesforce Mobile AppCity 311
4/30/20261638 W 21ST PLLower West Side25Completed4 daysMobile DeviceCity 311
8/30/20261638 W CATALPA AVEEdgewater40Completed12 daysMobile DeviceCity 311
2/11/20261638 W CERMAK RDLower West Side25Completed0 daysInternetCity 311
5/30/20261638 W CERMAK RDLower West Side25Completed2 daysInternetCity 311
10/26/20251638 W CERMAK RDLower West Side25Completed4 daysInternetCity 311
10/21/20251639 N LOREL AVEAustin37Completed6 daysPhone CallCity 311
4/19/20261639 N NORTH PARK AVELincoln Park2Completed1 dayInternetCity 311
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