RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4669 locations in the last 30 days (4819 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/24/20265417 S NEWLAND AVEGarfield Ridge23Completed1 dayInternetCity 311
2/10/20268758 S MICHIGAN AVEChatham6Completed1 dayInternetCity 311
2/3/20264825 S UNION AVENew City15Completed1 dayPhone CallCity 311
9/15/20252847 W DIVISION STWest Town26Completed1 dayPhone CallCity 311
2/25/20261717 N WESTERN AVEWest Town32Completed1 dayInternetCity 311
8/13/20253609 N KEDVALE AVEIrving Park30Completed1 dayPhone CallCity 311
3/25/20265742 W 59TH STGarfield Ridge13Completed1 dayPhone CallCity 311
2/16/20268300 S COTTAGE GROVE AVEChatham6Completed1 dayInternetCity 311
11/13/20255100 W WARWICK AVEPortage Park30Completed1 dayAlderman's OfficeCity 311
2/23/20264618 S SAWYER AVEBrighton Park12Completed1 dayPhone CallCity 311
9/29/202510889 S RACINE AVEMorgan Park21Completed1 dayPhone CallCity 311
7/22/2026206 N LATROBE AVEAustin37Completed1 dayInternetCity 311
11/18/20255300 S NATCHEZ AVEGarfield Ridge23Completed1 dayPhone CallCity 311
2/3/20264016 W CRYSTAL STHumboldt Park37Completed1 dayInternetCity 311
12/17/20252616 W EVERGREEN AVEWest Town26Completed1 dayMobile DeviceCity 311
1/19/20261633 E 74TH STSouth Shore8Completed1 dayPhone CallCity 311
5/28/20261322 W 112TH STMorgan Park21Completed1 dayPhone CallCity 311
12/28/202511421 S PARNELL AVERoseland21Completed1 dayMobile DeviceCity 311
11/17/20257031 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing6Completed1 dayPhone CallCity 311
4/27/20262963 N LAWNDALE AVEAvondale35Completed1 dayInternetCity 311
3/16/20261427 W BYRON STLake View46Completed1 dayInternetCity 311
11/19/20255800 W HENDERSON STPortage Park30Completed1 dayAlderman's OfficeCity 311
10/30/2025470 W DEMING PLLincoln Park43Completed1 dayPhone CallCity 311
3/24/20264240 W HENDERSON STIrving Park30Completed1 dayMobile DeviceCity 311
10/9/2025914 W VAN BUREN STNear West Side34Completed1 dayInternetCity 311
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