RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4703 locations in the last 30 days (4856 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/5/20261633 W NORTH SHORE AVERogers Park49Open—Phone CallCity 311
10/6/20261634 N AVERS AVEHumboldt Park26Open—Phone CallCity 311
4/27/20261634 N KARLOV AVEHumboldt Park26Completed2 daysInternetCity 311
5/27/20261634 N LOTUS AVEAustin37Completed1 dayPhone CallCity 311
5/19/20261634 N LOTUS AVEAustin37Completed3 daysPhone CallCity 311
9/3/20261634 N MCVICKER AVEAustin29Completed14 daysAlderman's OfficeCity 311
2/24/20261634 N MEADE AVEAustin29Completed1 dayMobile DeviceCity 311
5/20/20261634 N SAWYER AVEHumboldt Park26Completed6 daysInternetCity 311
10/21/20251634 S ADA STLower West Side25Completed7 daysInternetCity 311
8/28/20251634 W GARFIELD BLVDNew City16Completed11 daysInternetCity 311
12/29/20251634 W GARFIELD BLVDNew City16Completed1 dayInternetCity 311
9/10/20261634 W MORSE AVERogers Park49Completed11 daysPhone CallCity 311
10/8/20261634 W MORSE AVERogers Park49Open—Phone CallCity 311
7/12/20261634 W NORTH SHORE AVERogers Park49Completed10 daysPhone CallCity 311
8/23/20251634 W ROSCOE STLake View47Completed12 daysInternetCity 311
6/16/20261635 E 53RD STHyde Park5Completed2 daysInternetCity 311
1/28/20261635 E 72ND STSouth Shore7Completed1 dayPhone CallCity 311
8/27/20251635 N KILDARE AVEHumboldt Park26Completed14 daysAlderman's OfficeCity 311
9/26/20251635 N LARAMIE AVEAustin37Completed3 daysPhone CallCity 311
9/29/20251635 N LOTUS AVEAustin37Completed3 daysMobile DeviceCity 311
12/31/20251635 N MOZART STWest Town26Completed2 daysMobile DeviceCity 311
8/23/20251635 N NASHVILLE AVEAustin29Completed11 daysInternetCity 311
8/10/20261635 S CHRISTIANA AVENorth Lawndale24Completed9 daysPhone CallCity 311
10/10/20251635 S HOMAN AVENorth Lawndale24Completed12 daysMobile DeviceCity 311
7/25/20251635 S HOMAN AVENorth Lawndale24Completed11 daysMobile DeviceCity 311
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