RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4400 locations in the last 30 days (4555 reports) · Last sighting 21 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

53,341 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/2/202511611 S JUSTINE STWest Pullman21Completed0 daysInternetCity 311
12/30/202511612 S LAFLIN STWest Pullman21Completed1 dayMobile DeviceCity 311
9/16/202611622 S AVENUE NHegewisch10Open—Alderman's OfficeCity 311
9/4/202611622 S AVENUE NHegewisch10Completed13 daysAlderman's OfficeCity 311
7/24/202511622 S AVENUE NHegewisch10Completed11 daysAlderman's OfficeCity 311
2/17/202611627 S AVENUE JHegewisch10Completed1 dayPhone CallCity 311
4/7/20261163 W 18TH STLower West Side25Completed1 dayPhone CallCity 311
9/21/202611642 S CAMPBELL AVEMorgan Park19Open—Phone CallCity 311
6/20/202611642 S LHegewisch10Completed4 daysMobile DeviceCity 311
8/11/202611646 S WALLACE STWest Pullman21Completed6 daysPhone CallCity 311
9/11/202511647 S MORGAN STWest Pullman21Completed11 daysPhone CallCity 311
8/22/20261164 W DIVERSEY AVELake View44Completed11 daysMobile DeviceCity 311
4/7/202611656 S NHegewisch10Completed0 daysMobile DeviceCity 311
9/25/202611657 S AVENUE NHegewisch10Open—Phone CallCity 311
8/3/202511657 S M AVEHegewisch10Completed15 daysMobile DeviceCity 311
8/3/202511657 S NHegewisch10Completed15 daysMobile DeviceCity 311
7/30/202611658 S AVENUE MHegewisch10Completed4 daysPhone CallCity 311
7/30/202611658 S AVENUE NHegewisch10Completed4 daysPhone CallCity 311
9/4/202611658 S AVENUE NHegewisch10Completed13 daysPhone CallCity 311
7/30/202611659 S AVENUE LHegewisch10Completed4 daysPhone CallCity 311
7/30/202611659 S EWING AVEHegewisch10Completed4 daysPhone CallCity 311
9/14/20261167 N STATE STNear North Side2Completed1 dayAlderman's OfficeCity 311
4/26/20261168 N LA SALLE DRNear North Side27Completed2 daysInternetCity 311
5/9/20261169 N STATE STNear North Side2Completed3 daysMobile DeviceCity 311
2/17/20261169 N STATE STNear North Side2Completed1 dayAlderman's OfficeCity 311
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