RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4539 locations in the last 30 days (4686 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/9/202610009 S HOXIE AVESouth Deering7Completed10 daysInternetCity 311
8/9/20261258 W GREENLEAF AVERogers Park49Completed15 daysMobile DeviceCity 311
8/9/20261709 N FRANCISCO AVEWest Town26Completed10 daysMobile DeviceCity 311
8/9/20264219 S KILPATRICK AVEGarfield Ridge22Completed4 daysInternetCity 311
8/9/20267128 W FOSTER AVENorwood Park41Completed10 daysInternetCity 311
8/9/20264439 N MERRIMAC AVEPortage Park38Completed15 daysMobile DeviceCity 311
8/9/20262015 W BALMORAL AVELincoln Square40Completed12 daysInternetCity 311
8/9/20267921 S WOOD STAuburn Gresham17Completed5 daysInternetCity 311
8/9/20265641 S BLACKSTONE AVEHyde Park5Completed10 daysMobile DeviceCity 311
8/9/20265423 S KENWOOD AVEHyde Park5Completed10 daysMobile DeviceCity 311
8/9/20263812 W 24TH STSouth Lawndale22Completed4 daysMobile DeviceCity 311
8/9/20262309 S LAWNDALE AVESouth Lawndale22Completed4 daysMobile DeviceCity 311
8/9/20264541 N KENNETH AVEIrving Park39Completed8 daysMobile DeviceCity 311
8/9/20262137 N MERRIMAC AVEBelmont Cragin36Completed3 daysInternetCity 311
8/9/20263565 W WABANSIA AVEHumboldt Park26Completed16 daysInternetCity 311
8/9/20262938 N AVERS AVEAvondale31Completed12 daysMobile DeviceCity 311
8/9/20263603 W 115TH STMount Greenwood19Completed5 daysMobile DeviceCity 311
8/9/2026556 E 88TH STChatham8Completed15 daysInternetCity 311
8/9/20264924 N KEELER AVEAlbany Park39Completed8 daysMobile DeviceCity 311
8/9/20265858 W NEWPORT AVEPortage Park30Completed12 daysInternetCity 311
8/9/20261409 N MAPLEWOOD AVEWest Town1Completed5 daysInternetCity 311
8/9/20261528 S WABASH AVENear South Side3Completed1 dayMobile DeviceCity 311
8/9/20265425 W HUTCHINSON STPortage Park38Completed15 daysInternetCity 311
8/9/20264754 N KEWANEE AVEAlbany Park39Completed12 daysPhone CallCity 311
8/9/20264517 S WHIPPLE STBrighton Park12Completed11 daysMobile DeviceCity 311
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