RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4513 locations in the last 30 days (4686 reports) · Last sighting 14 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.

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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
10/9/20253906 N SAWYER AVEIrving Park33Completed12 daysPhone CallCity 311
7/29/20264043 N BERNARD STIrving Park33Completed13 daysPhone CallCity 311
6/17/20263715 N MOZART STIrving Park35Completed1 dayMobile DeviceCity 311
8/7/20263855 N LAWNDALE AVEIrving Park30Completed14 daysInternetCity 311
1/9/20263665 N ELSTON AVEIrving Park33Completed3 daysInternetCity 311
5/28/20264614 N LOWELL AVEIrving Park39Completed4 daysInternetCity 311
8/10/20264553 N KENNETH AVEIrving Park39Completed7 daysPhone CallCity 311
7/14/20263645 N ST LOUIS AVEIrving Park35Completed10 daysInternetCity 311
1/14/20263222 W GRACE STIrving Park33Completed1 dayInternetCity 311
8/31/20253501 N KENTON AVEIrving Park30Completed12 daysInternetCity 311
9/14/20263712 N ALBANY AVEIrving Park33Completed10 daysAlderman's OfficeCity 311
7/12/20264335 N WHIPPLE STIrving Park33Completed9 daysMobile DeviceCity 311
9/23/20263942 N FRANCISCO AVEIrving Park33Completed12 daysInternetCity 311
9/26/20263816 N SAWYER AVEIrving Park33Completed12 daysMobile DeviceCity 311
10/10/20263702 N MOZART STIrving Park35Completed16 daysInternetCity 311
5/16/20263661 N ELSTON AVEIrving Park33Completed2 daysMobile DeviceCity 311
6/20/20263856 N KENNETH AVEIrving Park30Completed4 daysMobile DeviceCity 311
7/12/20264332 N SACRAMENTO AVEIrving Park33Completed9 daysMobile DeviceCity 311
8/4/20253700 N SPAULDING AVEIrving Park33Completed10 daysMobile DeviceCity 311
6/25/20263350 W WARNER AVEIrving Park33Completed4 daysPhone CallCity 311
5/14/20263315 W CUYLER AVEIrving Park33Completed1 dayInternetCity 311
7/25/20263710 N SACRAMENTO AVEIrving Park35Completed12 daysInternetCity 311
9/18/20263673 N ELSTON AVEIrving Park33Completed14 daysInternetCity 311
1/12/20263924 N WHIPPLE STIrving Park33Completed1 dayInternetCity 311
2/10/20263600 N BERNARD STIrving Park35Completed1 dayPhone CallCity 311
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