RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4530 locations in the last 30 days (4685 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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20255713 W EDDY STPortage Park30Completed8 daysMobile DeviceCity 311
8/18/2025725 W 60TH PLEnglewood16Completed8 daysPhone CallCity 311
8/18/20252919 W BALMORAL AVELincoln Square39Completed10 daysMobile DeviceCity 311
8/18/20252683 N ORCHARD STLincoln Park43Completed15 daysInternetCity 311
8/18/202510509 S HOMAN AVEMount Greenwood19Completed10 daysInternetCity 311
8/18/20256018 N DAMEN AVEWest Ridge40Completed10 daysInternetCity 311
8/18/20253838 W 66TH STWest Lawn23Completed11 daysInternetCity 311
8/18/2025329 W 25TH PLArmour Square11Completed9 daysPhone CallCity 311
8/18/20251154 N LATROBEAustin37Completed11 daysSalesforce Mobile AppCity 311
8/18/20255727 W WASHINGTON BLVDAustin29Completed9 daysMobile DeviceCity 311
8/18/20252429 W GRENSHAW STNear West Side28Completed8 daysPhone CallCity 311
8/18/20254818 S FORRESTVILLE AVEGrand Boulevard3Completed1 dayInternetCity 311
8/18/20251430 W CHESTNUT STWest Town27Completed11 daysMobile DeviceCity 311
8/18/20255800 W CORNELIA AVEPortage Park30Completed8 daysAlderman's OfficeCity 311
8/18/20254358 S KARLOV AVEArcher Heights14Completed1 dayPhone CallCity 311
8/18/20251010 N KEYSTONE AVEHumboldt Park37Completed11 daysAlderman's OfficeCity 311
8/18/20257405 S INDIANA AVEGreater Grand Crossing6Completed11 daysPhone CallCity 311
8/18/2025541 W DEMING PLLincoln Park43Completed15 daysPhone CallCity 311
8/18/20252028 W WAVELAND AVENorth Center47Completed7 daysInternetCity 311
8/18/20251722 W JARVIS AVERogers Park49Completed15 daysInternetCity 311
8/18/20252539 W COYLE AVEWest Ridge40Completed10 daysInternetCity 311
8/18/20251321 W COLUMBIA AVERogers Park49Completed15 daysInternetCity 311
8/18/20251317 W COLUMBIA AVERogers Park49Completed15 daysInternetCity 311
8/18/202551 E 98TH STRoseland9Completed11 daysPhone CallCity 311
8/18/20254147 N MELVINA AVEPortage Park38Completed9 daysAlderman's OfficeCity 311
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