RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4384 locations in the last 30 days (4539 reports) · Last sighting yesterday

📰 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/30/20263806 N SAWYER AVEIrving Park33Completed1 dayPhone CallCity 311
12/15/20256312 N LAKEWOOD AVEEdgewater48Completed1 dayInternetCity 311
4/15/20265200 W WAVELAND AVEPortage Park30Completed1 dayAlderman's OfficeCity 311
6/24/20269349 S MICHIGAN AVERoseland6Completed1 dayMobile DeviceCity 311
1/29/20264033 W WELLINGTON AVEAvondale31Completed1 dayAlderman's OfficeCity 311
1/8/20266538 N HARLEM AVEEdison Park41Completed1 dayPhone CallCity 311
1/6/20265415 W NORTHAustin37Completed1 daySalesforce Mobile AppCity 311
2/23/20266641 S MARQUETTE RDWoodlawn20Completed1 dayInternetCity 311
2/3/20261813 N DAYTON STLincoln Park43Completed1 dayInternetCity 311
11/13/202510551 S SANGAMON STWashington Heights21Completed1 dayPhone CallCity 311
4/28/20264432 N WOLCOTT AVELincoln Square47Completed1 dayMobile DeviceCity 311
4/8/20267428 N OAKLEY AVEWest Ridge50Completed1 dayInternetCity 311
6/14/20261931 N BISSELL STLincoln Park43Completed1 dayMobile DeviceCity 311
12/8/202511452 S LONGWOOD DRMorgan Park19Completed1 dayMobile DeviceCity 311
12/11/20258205 S PEORIA STAuburn Gresham17Completed1 dayPhone CallCity 311
5/5/202669 W WASHINGTON STLoop34Completed1 dayInternetCity 311
2/15/2026523 E 79TH STChatham6Completed1 dayInternetCity 311
7/27/20265230 S CORNELL AVEHyde Park5Completed1 dayInternetCity 311
11/18/20256810 N ALGONQUIN AVEForest Glen45Completed1 dayPhone CallCity 311
3/5/20265232 W IRVING PARK RDPortage Park38Completed1 dayPhone CallCity 311
9/9/20265142 S SACRAMENTO AVEGage Park14Completed1 dayPhone CallCity 311
11/19/20255918 S PARKSIDE AVEClearing13Completed1 dayInternetCity 311
4/26/20262239 W GREENLEAF AVEWest Ridge50Completed1 dayMobile DeviceCity 311
3/25/20265838 W 63RD PLClearing13Completed1 dayAlderman's OfficeCity 311
4/9/2026713 S LOOMIS STNear West Side34Completed1 dayPhone CallCity 311
Page 149 of 2,134
PreviousNext