RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4431 locations in the last 30 days (4586 reports) · Last sighting 23 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.

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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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/26/20261944 N HALSTED STLincoln Park43Completed6 daysInternetCity 311
10/30/20251944 N MAUD AVELincoln Park43Completed1 dayInternetCity 311
8/27/20261944 N MAUD AVELincoln Park43Completed12 daysInternetCity 311
7/28/20261944 N MOZART STLogan Square26Completed14 daysPhone CallCity 311
9/7/20251944 N RIDGEWAY AVELogan Square26Completed12 daysPhone CallCity 311
4/28/20261944 N STOCKTON DRLincoln Park43Completed3 daysInternetCity 311
9/5/20251944 N WOOD STLogan Square32Completed11 daysInternetCity 311
5/14/20261944 S RACINE AVELower West Side25Completed5 daysMobile DeviceCity 311
1/12/20261944 W BELLE PLAINE AVENorth Center47Completed1 dayMobile DeviceCity 311
3/4/20261944 W BELLE PLAINE AVENorth Center47Completed1 dayMobile DeviceCity 311
1/3/20261944 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
12/20/20251944 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
1/7/20261944 W BELLE PLAINE AVENorth Center47Completed1 dayMobile DeviceCity 311
7/29/20261944 W BERWYN AVELincoln Square40Completed13 daysInternetCity 311
8/1/20251944 W FARRAGUT AVELincoln Square40Completed4 daysInternetCity 311
9/30/20261945 N CALIFORNIA AVELogan Square1Completed13 daysInternetCity 311
8/26/20251945 N DAMEN AVELogan Square32Completed13 daysAlderman's OfficeCity 311
8/4/20251945 N HONORE STLogan Square32Completed9 daysMobile DeviceCity 311
9/1/20251945 S AVERS AVENorth Lawndale24Completed9 daysPhone CallCity 311
5/12/20261945 S DRAKE AVENorth Lawndale24Completed0 daysMobile DeviceCity 311
1/12/20261945 S DRAKE AVENorth Lawndale24Completed1 dayInternetCity 311
8/26/20261945 W CHICAGO AVEWest Town36Completed13 daysInternetCity 311
8/3/20251945 W FARRAGUT AVELincoln Square40Completed9 daysInternetCity 311
6/13/20261945 W ROSCOE STNorth Center32Completed4 daysMobile DeviceCity 311
10/7/20261945 W THOMAS STWest Town1Open—Alderman's OfficeCity 311
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