RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4302 locations in the last 30 days (4461 reports) · Last sighting 16 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20254649 N ELSTON AVEAlbany Park39Completed9 daysInternetCity 311
8/14/20256012 N MASON AVEJefferson Park39Completed6 daysInternetCity 311
10/8/20256330 W HOLBROOK STNorwood Park39Completed6 daysAlderman's OfficeCity 311
12/5/20255022 W CATALPA AVEForest Glen39Completed4 daysMobile DeviceCity 311
8/26/20254450 N KENTON AVEIrving Park39Completed13 daysAlderman's OfficeCity 311
8/26/20254446 N KENTON AVEIrving Park39Completed13 daysAlderman's OfficeCity 311
9/8/20266270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
8/26/20254442 N KENTON AVEIrving Park39Completed13 daysAlderman's OfficeCity 311
9/1/20254935 N HAMLIN AVEAlbany Park39Completed9 daysMobile DeviceCity 311
9/23/20256147 N LEGETT AVEForest Glen39Completed7 daysPhone CallCity 311
12/19/20254719 N KOSTNER AVEAlbany Park39Completed3 daysPhone CallCity 311
10/8/20256232 N PULASKI RDForest Glen39Completed6 daysAlderman's OfficeCity 311
12/21/20255755 N CHRISTIANA AVENorth Park39Completed1 dayInternetCity 311
8/13/20255614 N KENNETH AVEForest Glen39Completed7 daysAlderman's OfficeCity 311
4/18/20266351 W HERMIONE STNorwood Park39Completed4 daysPhone CallCity 311
11/26/20256019 N AUSTIN AVEJefferson Park39Completed6 daysInternetCity 311
4/17/20263515 W BRYN MAWR AVENorth Park39Completed3 daysMobile DeviceCity 311
4/15/20265040 N ST LOUIS AVENorth Park39Completed5 daysAlderman's OfficeCity 311
8/21/20254844 N KOSTNER AVEAlbany Park39Completed12 daysMobile DeviceCity 311
4/16/20264431 N KEYSTONE AVEAlbany Park39Completed4 daysAlderman's OfficeCity 311
9/27/20253215 W OLIVE AVENorth Park39Completed6 daysInternetCity 311
8/26/20254854 N AVERS AVEAlbany Park39Completed13 daysPhone CallCity 311
11/27/20253905 W MONTROSE AVEIrving Park39Completed5 daysInternetCity 311
12/7/20255321 N SAWYER AVENorth Park39Completed2 daysInternetCity 311
9/28/20254839 N KEDVALE AVEAlbany Park39Completed5 daysPhone CallCity 311
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