RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4421 locations in the last 30 days (4582 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/20/20255128 S WOLCOTT AVENew City16Completed9 daysMobile DeviceCity 311
10/20/20252328 N LARAMIE AVEBelmont Cragin31Completed9 daysMobile DeviceCity 311
10/20/20255728 N RICHMOND STWest Ridge50Completed2 daysInternetCity 311
10/20/20256802 S ADA STWest Englewood17Completed3 daysPhone CallCity 311
10/20/2025400 S PLYMOUTH CTLoop34Completed2 daysPhone CallCity 311
10/20/20252841 N LINCOLN AVELake View32Completed8 daysMobile DeviceCity 311
10/20/20253811 N SACRAMENTO AVEIrving Park33Completed4 daysMobile DeviceCity 311
10/20/20252558 W WINNEMAC AVELincoln Square40Completed6 daysMobile DeviceCity 311
10/20/20252519 W CARMEN AVELincoln Square40Completed6 daysMobile DeviceCity 311
10/20/20252603 W CARMEN AVELincoln Square40Completed7 daysMobile DeviceCity 311
10/20/20254240 S RICHMOND STBrighton Park12Completed7 daysInternetCity 311
10/20/20251420 N CAMPBELL AVEWest Town1Completed7 daysInternetCity 311
10/21/20251518 S HOMAN AVENorth Lawndale24Completed3 daysMobile DeviceCity 311
10/21/20253131 S UNION AVEBridgeport11Completed6 daysMobile DeviceCity 311
10/21/20256319 W HENDERSON STDunning30Completed6 daysInternetCity 311
10/21/20255315 N NAGLE AVEJefferson Park41Completed7 daysInternetCity 311
10/21/20259245 S ADA STWashington Heights21Completed7 daysInternetCity 311
10/21/20256310 N LAWNDALE AVENorth Park50Completed1 dayInternetCity 311
10/21/20252712 W WILCOX STEast Garfield Park27Completed0 daysMobile DeviceCity 311
10/21/20253669 N ELSTON AVEIrving Park33Completed3 daysInternetCity 311
10/21/20257027 W SCHOOL STDunning29Completed1 dayMobile DeviceCity 311
10/21/20256247 N NAPER AVENorwood Park45Completed3 daysInternetCity 311
10/21/20251705 W 91ST STWashington Heights21Completed7 daysMobile DeviceCity 311
10/21/20252902 N CENTRAL PARK AVEAvondale35Completed6 daysInternetCity 311
10/21/20256243 N NAPER AVENorwood Park45Completed3 daysInternetCity 311
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