RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4517 locations in the last 30 days (4681 reports) · Last sighting 9 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/6/20253417 S RACINE AVEBridgeport11Completed5 daysInternetCity 311
8/6/20253459 S NORMAL AVEBridgeport11Completed5 daysMobile DeviceCity 311
8/6/20252055 N NATCHEZ AVEBelmont Cragin36Completed14 daysMobile DeviceCity 311
8/6/20252837 N CENTRAL PARK AVEAvondale35Completed13 daysMobile DeviceCity 311
8/6/20252102 N SHEFFIELD AVELincoln Park43Completed12 daysInternetCity 311
8/6/20251350 W WALTON STWest Town27Completed9 daysMobile DeviceCity 311
8/6/20251015 W WELLINGTON AVELake View44Completed12 daysMobile DeviceCity 311
8/6/20254033 W LEXINGTON STWest Garfield Park24Completed6 daysPhone CallCity 311
8/6/20252427 W BELLE PLAINE AVENorth Center47Completed8 daysMobile DeviceCity 311
8/7/20256964 W OAKDALE AVEMontclare36Completed13 daysInternetCity 311
8/7/20252631 S CHRISTIANA AVESouth Lawndale25Completed11 daysInternetCity 311
8/7/2025641 N CLARK STNear North Side42Completed0 daysMobile DeviceCity 311
8/7/20256541 S KEATING AVEClearing13Completed5 daysMobile DeviceCity 311
8/7/20252333 W LUNT AVEWest Ridge50Completed8 daysInternetCity 311
8/7/20254437 S WALLACE STNew City15Completed1 dayPhone CallCity 311
8/7/20252305 W 71ST STChicago Lawn18Completed1 dayPhone CallCity 311
8/7/20258500 S KNOX AVEAshburn18Completed1 dayPhone CallCity 311
8/7/20255224 S LONG AVEGarfield Ridge23Completed12 daysPhone CallCity 311
8/7/20256718 S KEDVALE AVEWest Lawn23Completed11 daysPhone CallCity 311
8/7/20251521 S HARDING AVENorth Lawndale24Completed1 dayPhone CallCity 311
8/7/20251910 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
8/7/20251918 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
8/7/20252927 N KOSTNER AVEHermosa31Completed1 dayPhone CallCity 311
8/7/20254916 N MOZART STLincoln Square40Completed8 daysMobile DeviceCity 311
8/7/20252916 N KARLOV AVEAvondale31Completed1 dayPhone CallCity 311
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