RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4547 locations in the last 30 days (4694 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.

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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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/22/20261824 N RICHMOND STLogan Square26Completed8 daysAlderman's OfficeCity 311
8/10/20251824 N WOLCOTT AVELogan Square32Completed15 daysInternetCity 311
7/19/20261824 S BISHOP STLower West Side25Completed9 daysInternetCity 311
6/6/20261824 S DESPLAINES STLower West Side25Completed4 daysMobile DeviceCity 311
10/1/20261824 S SAWYER AVENorth Lawndale24Open—Mobile DeviceCity 311
4/6/20261824 W BELLE PLAINE AVENorth Center47Completed1 dayPhone CallCity 311
8/13/20251824 W LARCHMONT AVENorth Center47Completed1 dayPhone CallCity 311
8/23/20261824 W LARCHMONT AVENorth Center47Completed12 daysPhone CallCity 311
4/1/20261824 W LARCHMONT AVENorth Center47Completed1 dayPhone CallCity 311
5/14/20261824 W LARCHMONT AVENorth Center47Completed4 daysPhone CallCity 311
8/29/20251824 W LARCHMONT AVENorth Center47Completed14 daysPhone CallCity 311
5/7/20261824 W LARCHMONT AVENorth Center47Completed1 dayPhone CallCity 311
8/23/20261824 W LARCHMONT AVENorth Center47Completed12 daysPhone CallCity 311
8/22/20261825 E 72ND STSouth Shore7Completed10 daysInternetCity 311
9/3/20251825 N AUSTIN AVEAustin29Completed8 daysPhone CallCity 311
9/24/20251825 N MOZART STLogan Square26Completed1 dayPhone CallCity 311
8/19/20261825 N SAWYER AVELogan Square26Completed13 daysMobile DeviceCity 311
10/10/20251825 N WHIPPLE STLogan Square26Completed7 daysInternetCity 311
8/25/20261825 S ASHLAND AVELower West Side25Completed14 daysInternetCity 311
9/20/20261825 S BLUE ISLAND AVELower West Side25Completed15 daysMobile DeviceCity 311
6/30/20261825 S CENTRAL PARK AVENorth Lawndale24Completed8 daysPhone CallCity 311
10/1/20261825 S CHRISTIANA AVENorth Lawndale24Open—Mobile DeviceCity 311
9/16/20261825 S KEELER AVENorth Lawndale24Completed13 daysPhone CallCity 311
9/6/20251825 W BALMORAL AVELincoln Square40Completed11 daysInternetCity 311
10/21/20251825 W HURON STWest Town36Completed6 daysMobile DeviceCity 311
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