RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4616 locations in the last 30 days (4761 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/6/20253207 W WASHINGTON BLVDEast Garfield Park28Completed12 daysMobile DeviceCity 311
9/6/20253710 N ELSTON AVEIrving Park35Completed10 daysMobile DeviceCity 311
9/6/20251937 W SUPERIOR STWest Town36Completed10 daysMobile DeviceCity 311
9/6/20251664 S BLUE ISLAND AVELower West Side25Completed9 daysMobile DeviceCity 311
9/6/20252119 N CLEVELAND AVELincoln Park43Completed11 daysInternetCity 311
9/6/20256814 S WOLCOTT AVEWest Englewood17Completed12 daysInternetCity 311
9/6/20257649 S MORGAN STAuburn Gresham17Completed12 daysInternetCity 311
9/6/20257202 W BALMORAL AVENorwood Park41Completed9 daysInternetCity 311
9/6/20254255 W 21ST STNorth Lawndale24Completed11 daysPhone CallCity 311
9/6/20252453 N NEW ENGLAND AVEMontclare36Completed11 daysInternetCity 311
9/6/20251721 N DAYTON STLincoln Park43Completed11 daysInternetCity 311
9/6/20252424 E 103RD STSouth Deering7Completed10 daysPhone CallCity 311
9/6/20252653 S KARLOV AVESouth Lawndale22Completed11 daysMobile DeviceCity 311
9/6/20255643 S MAPLEWOOD AVEGage Park15Completed6 daysMobile DeviceCity 311
9/6/20254241 N MOZART STIrving Park33Completed11 daysInternetCity 311
9/6/20253747 N CLARK STLake View44Completed11 daysMobile DeviceCity 311
9/6/20256244 W WAVELAND AVEDunning38Completed10 daysMobile DeviceCity 311
9/6/2025869 N MOZART STWest Town36Completed11 daysInternetCity 311
9/6/20251539 N CLAREMONT AVEWest Town1Completed10 daysInternetCity 311
9/6/20253311 W 26TH STSouth Lawndale25Completed9 daysMobile DeviceCity 311
9/6/20254934 N WINCHESTER AVELincoln Square47Completed10 daysInternetCity 311
9/6/20255819 S EMERALD AVEEnglewood16Completed12 daysMobile DeviceCity 311
9/6/20251740 N WASHTENAW AVEWest Town26Completed11 daysInternetCity 311
9/6/20254171 W 24TH STSouth Lawndale22Completed12 daysInternetCity 311
9/6/20251538 W FRY STWest Town1Completed12 daysPhone CallCity 311
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