RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4408 locations in the last 30 days (4577 reports) · Last sighting 10 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/17/20262415 W BELLE PLAINE AVENorth Center47Completed7 daysMobile DeviceCity 311
5/11/20262415 W COYLE AVEWest Ridge40Completed3 daysPhone CallCity 311
10/6/20252415 W CUYLER AVENorth Center47Completed9 daysInternetCity 311
7/14/20262415 W HADDON AVEWest Town36Completed9 daysMobile DeviceCity 311
6/27/20262415 W HADDON AVEWest Town36Completed2 daysInternetCity 311
8/24/20262415 W HADDON AVEWest Town36Completed10 daysMobile DeviceCity 311
9/29/20262415 W HADDON AVEWest Town36Completed14 daysMobile DeviceCity 311
5/5/20262415 W HADDON AVEWest Town36Completed1 dayInternetCity 311
12/26/20252415 W HADDON AVEWest Town36Completed4 daysInternetCity 311
10/4/20262415 W LAWRENCE AVELincoln Square40Completed12 daysInternetCity 311
9/15/20252415 W LUNT AVEWest Ridge40Completed8 daysInternetCity 311
8/4/20252415 W MORSE AVEWest Ridge40Completed10 daysPhone CallCity 311
8/27/20262415 W PALMER STLogan Square1Completed14 daysAlderman's OfficeCity 311
10/13/20252415 W WARNER AVENorth Center47Completed3 daysInternetCity 311
11/17/20252416 N SEMINARY AVELincoln Park43Completed1 dayMobile DeviceCity 311
7/28/20262416 S AVERS AVESouth Lawndale22Completed10 daysPhone CallCity 311
9/15/20262416 S AVERS AVESouth Lawndale22Completed14 daysMobile DeviceCity 311
9/17/20262416 S AVERS AVESouth Lawndale22Completed12 daysAlderman's OfficeCity 311
7/27/20262416 S AVERS AVESouth Lawndale22Completed10 daysMobile DeviceCity 311
9/15/20262416 S AVERS AVESouth Lawndale22Completed14 daysPhone CallCity 311
5/6/20262416 S AVERS AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
10/1/20262416 W BELLE PLAINE AVENorth Center47Completed18 daysInternetCity 311
5/17/20262416 W BERTEAU AVENorth Center47Completed3 daysMobile DeviceCity 311
9/2/20252416 W CERMAK RDLower West Side28Completed9 daysAlderman's OfficeCity 311
9/15/20262416 W CORTEZ STWest Town36Completed9 daysInternetCity 311
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