RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4221 locations in the last 30 days (4374 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.

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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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/29/20254744 N KENNETH AVEIrving Park39Completed6 daysAlderman's OfficeCity 311
7/24/20254547 N KASSON AVEAlbany Park39Completed8 daysMobile DeviceCity 311
10/6/20264434 N TRIPP AVEIrving Park39Open—Phone CallCity 311
8/9/20264924 N KEELER AVEAlbany Park39Completed8 daysMobile DeviceCity 311
7/21/20263201 W BERWYN AVENorth Park39Completed14 daysAlderman's OfficeCity 311
9/21/20266133 N FOREST GLEN AVEForest Glen39Completed1 dayPhone CallCity 311
8/14/20265357 W DEVON AVEForest Glen39Completed12 daysPhone CallCity 311
8/21/20264550 N LOWELL AVEIrving Park39Completed12 daysPhone CallCity 311
9/29/20265448 N SAWYER AVENorth Park39Completed15 daysMobile DeviceCity 311
8/22/20264968 N KOLMAR AVEAlbany Park39Completed11 daysInternetCity 311
10/6/20262921 W FARRAGUT AVELincoln Square39Completed3 daysPhone CallCity 311
6/27/20265351 N BERNARD STNorth Park39Completed4 daysInternetCity 311
9/28/20264324 N HARDING AVEIrving Park39Completed16 daysMobile DeviceCity 311
8/13/20264050 W WILSON AVEAlbany Park39Completed8 daysPhone CallCity 311
7/28/20255324 N BERNARD STNorth Park39Completed7 daysInternetCity 311
9/30/20262837 W SUMMERDALE AVELincoln Square39Completed1 dayPhone CallCity 311
8/15/20265920 N KOLMAR AVEForest Glen39Completed11 daysMobile DeviceCity 311
8/22/20265161 W DEVON AVEForest Glen39Completed11 daysMobile DeviceCity 311
10/1/20264525 N KENNETH AVEIrving Park39Completed13 daysMobile DeviceCity 311
10/2/20265231 N SPAULDING AVENorth Park39Open—InternetCity 311
10/11/20264766 N KEYSTONE AVEAlbany Park39Open—InternetCity 311
7/25/20265118 N CENTRAL PARK AVENorth Park39Completed12 daysInternetCity 311
9/29/20266201 N KILDARE AVEForest Glen39Completed10 daysPhone CallCity 311
9/4/20254925 N KILBOURN AVEAlbany Park39Completed12 daysAlderman's OfficeCity 311
7/22/20255112 N CENTRAL PARK AVENorth Park39Completed10 daysMobile DeviceCity 311
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