RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4372 locations in the last 30 days (4531 reports) · Last sighting 13 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
12/14/20255855 N SPAULDING AVENorth Park39Completed2 daysInternetCity 311
8/28/20252851 W SUMMERDALE AVELincoln Square39Completed13 daysMobile DeviceCity 311
8/27/20255727 N JERSEY AVENorth Park39Completed13 daysInternetCity 311
8/5/20255511 N SPAULDING AVENorth Park39Completed10 daysAlderman's OfficeCity 311
8/31/20255340 N BERNARD STNorth Park39Completed10 daysMobile DeviceCity 311
9/26/20255334 N CHRISTIANA AVENorth Park39Completed7 daysInternetCity 311
8/28/20256009 N LOUISE AVEForest Glen39Completed12 daysInternetCity 311
8/11/20254906 N PULASKI RDAlbany Park39Completed8 daysPhone CallCity 311
10/3/20254854 N AVERS AVEAlbany Park39Completed6 daysInternetCity 311
10/2/20256353 W HYACINTH STNorwood Park39Completed7 daysInternetCity 311
8/3/20255447 N SPAULDING AVENorth Park39Completed12 daysPhone CallCity 311
9/23/20255356 N BERNARD STNorth Park39Completed8 daysInternetCity 311
12/16/20256152 N LEGETT AVEForest Glen39Completed1 dayPhone CallCity 311
12/16/20253502 W HOLLYWOOD AVENorth Park39Completed1 dayAlderman's OfficeCity 311
8/27/20255818 N KINGSDALE AVEForest Glen39Completed13 daysPhone CallCity 311
9/10/20264332 N KOSTNER AVEIrving Park39Completed14 daysInternetCity 311
10/2/20253521 W ARDMORE AVENorth Park39Completed7 daysPhone CallCity 311
10/8/20255014 N SPRINGFIELD AVEAlbany Park39Completed5 daysInternetCity 311
9/25/20255051 N HAMLIN AVEAlbany Park39Completed8 daysMobile DeviceCity 311
12/17/20255342 N KEDZIE AVENorth Park39Completed0 daysInternetCity 311
8/24/20264025 N KEDVALE AVEIrving Park39Completed15 daysPhone CallCity 311
8/24/20266026 N AUSTIN AVENorwood Park39Completed15 daysInternetCity 311
8/31/20255840 N FOREST GLEN AVEForest Glen39Completed9 daysInternetCity 311
4/21/20266026 N AUSTIN AVENorwood Park39Completed1 dayInternetCity 311
7/2/20266016 N KEATING AVEForest Glen39Completed7 daysPhone CallCity 311
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