RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4407 locations in the last 30 days (4571 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/23/20252020 W IRVING PARK RDNorth Center47Completed10 daysInternetCity 311
7/13/20261614 W WILSON AVEUptown47Completed9 daysInternetCity 311
9/21/20253624 N PAULINA STLake View47Completed11 daysPhone CallCity 311
9/20/20253449 N MARSHFIELD AVELake View47Completed12 daysPhone CallCity 311
9/21/20254709 N LINCOLN AVELincoln Square47Completed11 daysInternetCity 311
2/9/20263710 N HOYNE AVENorth Center47Completed1 dayPhone CallCity 311
5/9/20263746 N ASHLAND AVELake View47Completed2 daysInternetCity 311
6/26/20264819 N OAKLEY AVELincoln Square47Completed3 daysPhone CallCity 311
9/10/20254733 N LINCOLN AVELincoln Square47Completed9 daysAlderman's OfficeCity 311
9/9/20262550 W SUNNYSIDE AVELincoln Square47Completed5 daysInternetCity 311
9/20/20253453 N MARSHFIELD AVELake View47Completed12 daysPhone CallCity 311
8/27/20262448 W CUYLER AVENorth Center47Completed13 daysPhone CallCity 311
10/16/20254513 N PAULINA STUptown47Completed4 daysInternetCity 311
9/9/20254430 N ARTESIAN AVELincoln Square47Completed9 daysMobile DeviceCity 311
9/25/20253453 N MARSHFIELD AVELake View47Completed6 daysPhone CallCity 311
6/18/20262443 W LELAND AVELincoln Square47Completed6 daysPhone CallCity 311
7/13/20263843 N CLAREMONT AVENorth Center47Completed11 daysInternetCity 311
9/9/20252148 W EASTWOOD AVELincoln Square47Completed10 daysInternetCity 311
8/29/20262459 W BERENICE AVENorth Center47Completed16 daysMobile DeviceCity 311
7/27/20253801 N HAMILTON AVENorth Center47Completed9 daysInternetCity 311
9/1/20262423 W BYRON STNorth Center47Completed13 daysMobile DeviceCity 311
9/13/20263614 N HOYNE AVENorth Center47Completed1 dayMobile DeviceCity 311
7/27/20252112 W CUYLER AVENorth Center47Completed9 daysInternetCity 311
1/13/20261739 W NEWPORT AVELake View47Completed0 daysInternetCity 311
8/21/20264024 N LINCOLN AVENorth Center47Completed13 daysInternetCity 311
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