RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4287 locations in the last 30 days (4445 reports) · Last sighting 18 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
8/25/20254843 N KOSTNER AVEAlbany Park39Completed14 daysMobile DeviceCity 311
9/29/20254686 N KASSON AVEAlbany Park39Completed4 daysMobile DeviceCity 311
8/27/20265215 N KIMBALL AVENorth Park39Completed15 daysPhone CallCity 311
9/2/20254528 W LAWRENCE AVEAlbany Park39Completed1 dayPhone CallCity 311
9/8/20262909 W RASCHER AVELincoln Square39Completed10 daysMobile DeviceCity 311
9/11/20264509 N KENNETH AVEIrving Park39Completed14 daysMobile DeviceCity 311
7/13/20265149 N BERNARD STNorth Park39Completed3 daysMobile DeviceCity 311
7/12/20265347 N VIRGINIA AVELincoln Square39Completed4 daysMobile DeviceCity 311
10/9/20254754 N KEYSTONE AVEAlbany Park39Completed5 daysPhone CallCity 311
7/11/20265014 W BERWYN AVEForest Glen39Completed5 daysInternetCity 311
8/25/20252933 W BALMORAL AVELincoln Square39Completed3 daysPhone CallCity 311
8/25/20254452 W WILSON AVEIrving Park39Completed14 daysMobile DeviceCity 311
7/4/20264632 N KELSO AVEAlbany Park39Completed9 daysInternetCity 311
8/6/20254443 W MONTROSE AVEIrving Park39Completed12 daysInternetCity 311
7/7/20265001 N BERNARD STNorth Park39Completed9 daysMobile DeviceCity 311
8/30/20253846 W ARGYLE STAlbany Park39Completed11 daysInternetCity 311
9/26/20255857 N SPAULDING AVENorth Park39Completed7 daysInternetCity 311
8/20/20254545 W FOSTER AVEAlbany Park39Completed8 daysMobile DeviceCity 311
8/29/20255708 N KEYSTONE AVENorth Park39Completed12 daysPhone CallCity 311
9/26/20254831 N KOSTNER AVEAlbany Park39Completed7 daysMobile DeviceCity 311
8/27/20264223 N LOWELL AVEIrving Park39Completed15 daysPhone CallCity 311
8/6/20254304 N SPRINGFIELD AVEIrving Park39Completed12 daysMobile DeviceCity 311
8/22/20254754 N KEWANEE AVEAlbany Park39Completed11 daysPhone CallCity 311
7/5/20266216 N FOREST GLEN AVEForest Glen39Completed8 daysInternetCity 311
7/7/20262833 W BERWYN AVELincoln Square39Completed9 daysInternetCity 311
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