RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4644 locations in the last 30 days (4801 reports) · Last sighting 15 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/16/20261901 W IRVING PARK RDNorth Center47Completed4 daysPhone CallCity 311
4/16/20261901 W WINONA STLincoln Square40Completed1 dayMobile DeviceCity 311
8/12/20261902 N DEAN STWest Town1Completed12 daysMobile DeviceCity 311
1/10/20261902 W 17TH STLower West Side25Completed2 daysMobile DeviceCity 311
5/3/20261902 W SCHOOL STNorth Center32Completed1 dayMobile DeviceCity 311
7/28/20251903 N LEAVITT STLogan Square32Completed8 daysInternetCity 311
9/8/20261903 N LINCOLN PARK WESTLincoln Park43Completed15 daysInternetCity 311
6/3/20261903 N LINCOLN PARK WESTLincoln Park43Completed2 daysInternetCity 311
7/8/20261903 N LINCOLN PARK WESTLincoln Park43Completed6 daysInternetCity 311
11/26/20251903 N TRIPP AVEHermosa26Completed5 daysInternetCity 311
3/3/20261903 S MAY STLower West Side25Completed1 dayPhone CallCity 311
2/26/20261903 S RACINE AVELower West Side25Completed1 dayMobile DeviceCity 311
7/19/20261903 S TROY STNorth Lawndale24Completed8 daysPhone CallCity 311
5/21/20261903 W DIVERSEY AVELincoln Park32Completed1 dayPhone CallCity 311
1/8/20261903 W DIVERSEY PKWYLincoln Park32Completed0 daysInternetCity 311
7/16/20261903 W DIVERSEY PKWYLincoln Park32Completed11 daysInternetCity 311
3/17/20261903 W GARFIELD BLVDWest Englewood16Completed2 daysPhone CallCity 311
4/9/20261903 W LARCHMONT AVENorth Center47Completed1 dayInternetCity 311
9/1/20261903 W LARCHMONT AVENorth Center47Completed14 daysInternetCity 311
10/7/20251904 N HARDING AVEHermosa26Completed9 daysPhone CallCity 311
7/10/20261904 N KEELER AVEHermosa26Completed10 daysAlderman's OfficeCity 311
7/8/20261904 W NELSON STNorth Center32Completed6 daysInternetCity 311
6/28/20261904 W NELSON STNorth Center32Completed3 daysInternetCity 311
4/13/20261904 W NELSON STNorth Center32Completed1 dayInternetCity 311
10/5/20251905 N ALBANY AVELogan Square26Completed10 daysInternetCity 311
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