RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4327 locations in the last 30 days (4517 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/24/20253330 W DICKENS AVELogan Square35Completed1 dayPhone CallCity 311
2/25/20262809 N CAMPBELL AVEAvondale35Completed1 dayInternetCity 311
8/25/20253300 W PALMER STLogan Square35Completed11 daysInternetCity 311
9/22/20254118 W PALMERHermosa35Completed9 daysSalesforce Mobile AppCity 311
10/31/20263418 W MEDILL AVELogan Square35Open—InternetCity 311
10/7/20252206 N KEDVALE AVEHermosa35Completed1 dayPhone CallCity 311
8/12/20253140 N SPAULDING AVEAvondale35Completed10 daysPhone CallCity 311
4/14/20262322 N LAWNDALE AVELogan Square35Completed3 daysMobile DeviceCity 311
8/25/20252505 N ST LOUIS AVELogan Square35Completed9 daysPhone CallCity 311
8/26/20252130 N KEDZIE AVELogan Square35Completed10 daysAlderman's OfficeCity 311
2/26/20262413 N SPAULDING AVELogan Square35Completed1 dayMobile DeviceCity 311
3/3/20262247 N SPAULDING AVELogan Square35Completed2 daysPhone CallCity 311
1/2/20262206 N LOWELL AVEHermosa35Completed3 daysInternetCity 311
9/23/20252130 N KEDZIE AVELogan Square35Completed10 daysAlderman's OfficeCity 311
4/13/20262848 N ELSTON AVEAvondale35Completed2 daysInternetCity 311
3/24/20263149 W DIVERSEY AVELogan Square35Completed0 daysMobile DeviceCity 311
9/24/20253252 N DRAKE AVEAvondale35Completed9 daysMobile DeviceCity 311
6/29/20264347 W SHAKESPEARE AVEHermosa35Completed8 daysMobile DeviceCity 311
12/13/20253555 W MEDILL AVELogan Square35Completed2 daysMobile DeviceCity 311
12/30/20253638 W WRIGHTWOOD AVELogan Square35Completed1 dayMobile DeviceCity 311
12/26/20252105 N TRIPP AVEHermosa35Completed3 daysPhone CallCity 311
9/12/20262857 N CENTRAL PARK AVEAvondale35Completed12 daysMobile DeviceCity 311
12/30/20253634 W WRIGHTWOOD AVELogan Square35Completed1 dayMobile DeviceCity 311
9/18/20253614 W GEORGEAvondale35Completed12 daysSalesforce Mobile AppCity 311
9/25/20253526 W DICKENSLogan Square35Completed8 daysSalesforce Mobile AppCity 311
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