RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4790 locations in the last 30 days (4949 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.

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
8/28/2025753 E 47TH STKenwood4Completed12 daysPhone CallCity 311
9/11/202510520 S LAWNDALE AVEMount Greenwood19Completed12 daysAlderman's OfficeCity 311
8/13/20261149 W ERIE STWest Town27Completed12 daysMobile DeviceCity 311
7/31/20264911 W MONTANA STBelmont Cragin31Completed12 daysMobile DeviceCity 311
9/17/20265902 W GRACE STPortage Park38Completed12 daysInternetCity 311
7/31/20267823 S ABERDEEN STAuburn Gresham17Completed12 daysPhone CallCity 311
7/31/2026849 N DEARBORN STNear North Side42Completed12 daysMobile DeviceCity 311
9/24/20265657 N MERRIMAC AVENorwood Park45Completed12 daysPhone CallCity 311
9/4/20263335 S HALSTED STBridgeport11Completed12 daysAlderman's OfficeCity 311
7/29/20266100 S HERMITAGE AVEWest Englewood15Completed12 daysAlderman's OfficeCity 311
7/31/20264044 W NELSON STAvondale31Completed12 daysPhone CallCity 311
9/25/20256046 S NORMANDY AVEClearing13Completed12 daysAlderman's OfficeCity 311
9/18/20255640 S KOLIN AVEWest Elsdon13Completed12 daysInternetCity 311
9/6/20257649 S MORGAN STAuburn Gresham17Completed12 daysInternetCity 311
9/17/20261632 W BLACKHAWK STWest Town1Completed12 daysInternetCity 311
8/14/20253815 N ALBANY AVEIrving Park33Completed12 daysInternetCity 311
9/12/20266566 W BARRY AVEMontclare36Completed12 daysInternetCity 311
8/7/202510445 S STATE STRoseland9Completed12 daysInternetCity 311
7/31/20267729 S HONORE STAuburn Gresham17Completed12 daysPhone CallCity 311
9/12/20254300 N HAMLIN AVEIrving Park33Completed12 daysAlderman's OfficeCity 311
9/4/202610608 S SAWYER AVEMount Greenwood19Completed12 daysAlderman's OfficeCity 311
9/24/20265842 S NEWCASTLE AVEGarfield Ridge13Completed12 daysInternetCity 311
8/22/202511114 S SAWYER AVEMount Greenwood19Completed12 daysAlderman's OfficeCity 311
8/14/20264341 S PRAIRIE AVEGrand Boulevard3Completed12 daysInternetCity 311
8/20/20266158 W ROSCOE STDunning30Completed12 daysMobile DeviceCity 311
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