RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4327 locations in the last 30 days (4483 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20263820 W NORTH AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
7/16/20263835 N ALTA VISTA TERLake View46Completed11 daysMobile DeviceCity 311
9/4/20252669 N LINCOLN AVELincoln Park43Completed11 daysMobile DeviceCity 311
10/3/20265404 S NORMANDY AVEGarfield Ridge23Completed11 daysInternetCity 311
7/16/2026815 W BRADLEY PLLake View46Completed11 daysInternetCity 311
8/17/2026449 W 42ND PLNew City11Completed11 daysAlderman's OfficeCity 311
7/24/20251416 W TAYLOR STNear West Side28Completed11 daysInternetCity 311
7/25/20253936 N CLIFTON AVELake View44Completed11 daysMobile DeviceCity 311
7/26/20252815 N CLYBOURN AVENorth Center32Completed11 daysMobile DeviceCity 311
8/22/20264401 S ASHLAND AVENew City11Completed11 daysMobile DeviceCity 311
8/16/20262204 W LELAND AVELincoln Square47Completed11 daysMobile DeviceCity 311
7/24/2025632 W SCHUBERT AVELincoln Park43Completed11 daysInternetCity 311
8/22/20263501 S LITUANICA AVEBridgeport11Completed11 daysInternetCity 311
8/31/2026854 W ALDINE AVELake View44Completed11 daysMobile DeviceCity 311
8/25/20256155 W ROSCOE STDunning30Completed11 daysMobile DeviceCity 311
9/14/20253047 N LOTUS AVEBelmont Cragin31Completed11 daysMobile DeviceCity 311
8/31/20253443 N NEENAH AVEDunning38Completed11 daysMobile DeviceCity 311
9/21/20264316 W WRIGHTWOOD AVEHermosa31Completed11 daysPhone CallCity 311
7/23/20261722 S CLINTON STLower West Side25Completed11 daysPhone CallCity 311
9/5/20251654 N ARTESIAN AVEWest Town1Completed11 daysInternetCity 311
8/17/20262212 W IRVING PARK RDNorth Center47Completed11 daysMobile DeviceCity 311
9/19/20255437 S LOCKWOOD AVEGarfield Ridge23Completed11 daysInternetCity 311
7/27/2026938 N HOYNE AVEWest Town36Completed11 daysMobile DeviceCity 311
8/15/2025333 W 35TH STArmour Square11Completed11 daysInternetCity 311
9/7/20262921 W RASCHER AVELincoln Square39Completed11 daysPhone CallCity 311
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