RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4696 locations in the last 30 days (4849 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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/20251535 W BARRY AVELake View32Completed6 daysMobile DeviceCity 311
6/9/20261535 W BARRY AVELake View32Completed1 dayMobile DeviceCity 311
12/18/20251535 W BARRY AVELake View32Completed1 dayMobile DeviceCity 311
6/4/20261535 W BARRY AVELake View32Completed1 dayPhone CallCity 311
5/30/20261535 W BARRY AVELake View32Completed5 daysMobile DeviceCity 311
9/11/20251535 W BARRY AVELake View32Completed11 daysMobile DeviceCity 311
9/26/20251535 W BARRY AVELake View32Completed6 daysMobile DeviceCity 311
9/12/20251535 W CHESTNUT STWest Town1Completed11 daysPhone CallCity 311
3/18/20261535 W HADDON AVEWest Town1Completed1 dayMobile DeviceCity 311
5/4/20261535 W PEARSON STWest Town1Completed2 daysAlderman's OfficeCity 311
5/20/20261535 W PEARSON STWest Town1Completed6 daysInternetCity 311
8/6/20251536 N ARTESIAN AVEWest Town1Completed8 daysMobile DeviceCity 311
1/23/20261536 N CAMPBELLWest Town1Completed0 daysSalesforce Mobile AppCity 311
6/7/20261536 N CLAREMONT AVEWest Town1Completed3 daysInternetCity 311
12/29/20251536 N LARAMIE AVEAustin37Completed1 dayInternetCity 311
9/11/20261536 N TALMAN AVEWest Town26Completed11 daysInternetCity 311
9/26/20251536 N TALMAN AVEWest Town26Completed10 daysInternetCity 311
7/15/20261536 S HOMAN AVENorth Lawndale24Completed2 daysInternetCity 311
11/18/20251536 S HOMAN AVENorth Lawndale24Completed1 dayInternetCity 311
8/25/20261536 W 19TH STLower West Side25Completed14 daysInternetCity 311
1/13/20261536 W NORTH AVEWest Town32Completed0 daysInternetCity 311
9/30/20251536 W WELLINGTON AVELake View32Completed2 daysInternetCity 311
10/28/20251537 E 73RD STSouth Shore7Completed6 daysPhone CallCity 311
10/21/20251537 E 84TH STAvalon Park8Completed3 daysInternetCity 311
6/2/20261537 N BOSWORTH AVEWest Town1Completed2 daysInternetCity 311
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