RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4635 locations in the last 30 days (4790 reports) · Last sighting 19 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/2/20261836 S TROY STNorth Lawndale24Completed1 dayAlderman's OfficeCity 311
8/6/20251836 W AUGUSTA BLVDWest Town1Completed9 daysInternetCity 311
5/27/20261836 W BYRON STNorth Center47Completed2 daysMobile DeviceCity 311
10/21/20251836 W CORTLAND STLogan Square32Completed7 daysMobile DeviceCity 311
5/26/20261837 N FREMONT STLincoln Park43Completed3 daysInternetCity 311
3/18/20261837 N HARDING AVEHermosa26Completed1 dayMobile DeviceCity 311
8/17/20251837 N HARDING AVEHermosa26Completed8 daysInternetCity 311
9/21/20251837 N KARLOV AVEHermosa26Completed12 daysInternetCity 311
8/2/20251837 N KARLOV AVEHermosa26Completed6 daysMobile DeviceCity 311
5/7/20261837 N SPRINGFIELD AVEHermosa26Completed4 daysInternetCity 311
5/12/20261837 S LAFLIN STLower West Side25Completed6 daysPhone CallCity 311
7/8/20261837 S MILLARD AVENorth Lawndale24Completed9 daysPhone CallCity 311
7/16/20261837 S MILLARD AVENorth Lawndale24Completed1 dayPhone CallCity 311
8/17/20261837 W 34TH PLMcKinley Park11Completed11 daysInternetCity 311
6/6/20261837 W BELLE PLAINE AVENorth Center47Completed3 daysMobile DeviceCity 311
9/11/20261837 W CUYLER AVENorth Center47Completed13 daysMobile DeviceCity 311
5/26/20261837 W LARCHMONT AVENorth Center47Completed2 daysInternetCity 311
3/10/20261837 W ROSCOE STNorth Center32Completed0 daysMobile DeviceCity 311
10/1/20251838 N DAMEN AVELogan Square32Completed7 daysMobile DeviceCity 311
8/31/20251838 N DAMEN AVELogan Square32Completed8 daysMobile DeviceCity 311
10/1/20251838 N DAMEN AVELogan Square32Completed7 daysInternetCity 311
9/23/20261838 N MAUD AVELincoln Park43Completed12 daysInternetCity 311
10/3/20251838 N MONTICELLO AVELogan Square26Completed7 daysInternetCity 311
7/14/20261838 N MONTICELLO AVELogan Square26Completed10 daysInternetCity 311
3/3/20261838 N RICHMOND STLogan Square26Completed6 daysInternetCity 311
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