RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4342 locations in the last 30 days (4498 reports) · Last sighting yesterday

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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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/8/20262466 W BERWYN AVELincoln Square40Open—InternetCity 311
8/20/20264855 N WASHTENAW AVELincoln Square40Completed13 daysInternetCity 311
7/29/20265040 N LEAVITT STLincoln Square40Completed13 daysInternetCity 311
7/28/20252743 W RASCHER AVELincoln Square40Completed8 daysMobile DeviceCity 311
9/23/20262111 W GRANVILLEWest Ridge40Completed12 daysSalesforce Mobile AppCity 311
8/21/20262940 W EASTWOOD AVEAlbany Park40Completed12 daysInternetCity 311
8/13/20265819 N HERMITAGE AVEEdgewater40Completed12 daysInternetCity 311
9/27/20262451 W AINSLIE STLincoln Square40Completed11 daysInternetCity 311
10/8/20266113 N WOLCOTTWest Ridge40Open—Salesforce Mobile AppCity 311
8/20/20266149 N ROCKWELL STWest Ridge40Completed13 daysInternetCity 311
10/5/20265627 N FAIRFIELD AVEWest Ridge40Open—InternetCity 311
8/13/20265952 N HERMITAGE AVEEdgewater40Completed12 daysMobile DeviceCity 311
9/2/20262719 W RASCHER AVELincoln Square40Completed12 daysPhone CallCity 311
8/3/20266145 N TALMAN AVEWest Ridge40Completed9 daysInternetCity 311
7/20/20262520 W GUNNISON STLincoln Square40Completed8 daysInternetCity 311
7/21/20266051 N TALMANWest Ridge40Completed13 daysSalesforce Mobile AppCity 311
7/23/20264817 N CALIFORNIA AVELincoln Square40Completed11 daysInternetCity 311
9/7/20265007 N WESTERN AVELincoln Square40Completed10 daysMobile DeviceCity 311
8/16/20262752 W GIDDINGS STLincoln Square40Completed12 daysMobile DeviceCity 311
7/28/20261926 W WINNEMAC AVELincoln Square40Completed2 daysMobile DeviceCity 311
10/6/20266108 N HERMITAGEEdgewater40Open—Salesforce Mobile AppCity 311
8/19/20262743 W RASCHER AVELincoln Square40Completed14 daysMobile DeviceCity 311
8/13/20261835 W SUMMERDALE AVELincoln Square40Completed11 daysMobile DeviceCity 311
9/24/20262545 W GUNNISON STLincoln Square40Completed11 daysPhone CallCity 311
7/28/20252460 W BERWYN AVELincoln Square40Completed8 daysInternetCity 311
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