RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4475 locations in the last 30 days (4648 reports) · Last sighting 21 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/19/20252444 N OAK PARK AVEMontclare36Completed2 daysPhone CallCity 311
8/24/20251851 W IOWA STWest Town36Completed15 daysMobile DeviceCity 311
8/23/20252013 W IOWA STWest Town36Completed16 daysMobile DeviceCity 311
11/18/20252642 W SUPERIOR STWest Town36Completed1 dayPhone CallCity 311
8/11/20252155 N LOCKWOOD AVEBelmont Cragin36Completed10 daysPhone CallCity 311
10/25/20252055 N NATCHEZ AVEBelmont Cragin36Completed3 daysMobile DeviceCity 311
11/5/20252723 W AUGUSTA BLVDWest Town36Completed1 dayInternetCity 311
3/24/20262107 N MARMORA AVEBelmont Cragin36Completed1 dayMobile DeviceCity 311
8/13/20252510 W IOWA STWest Town36Completed8 daysInternetCity 311
11/6/20253227 N NEWLAND AVEDunning36Completed4 daysPhone CallCity 311
10/30/20252424 W IOWA STWest Town36Completed4 daysPhone CallCity 311
9/19/20251143 N LAWNDALE AVEHumboldt Park36Completed12 daysPhone CallCity 311
8/24/20252617 W IOWA STWest Town36Completed15 daysMobile DeviceCity 311
8/16/20252528 W WALTON STWest Town36Completed9 daysPhone CallCity 311
8/5/20252438 W HADDON AVEWest Town36Completed17 daysMobile DeviceCity 311
9/10/20251935 W RACE AVEWest Town36Completed13 daysInternetCity 311
8/6/20252701 W HADDON AVEWest Town36Completed16 daysInternetCity 311
8/6/20252701 W HADDON AVEWest Town36Completed16 daysPhone CallCity 311
8/14/20251300 N HARDING AVEHumboldt Park36Completed8 daysPhone CallCity 311
9/15/20251930 W ERIE STWest Town36Completed8 daysInternetCity 311
8/10/20252751 W AUGUSTA BLVDWest Town36Completed12 daysMobile DeviceCity 311
8/28/2025736 N WOLCOTT AVEWest Town36Completed11 daysMobile DeviceCity 311
9/8/2025918 N OAKLEY BLVDWest Town36Completed9 daysInternetCity 311
9/15/20252000 W LEE PLWest Town36Completed8 daysAlderman's OfficeCity 311
10/28/20252636 W THOMAS STWest Town36Completed6 daysPhone CallCity 311
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