RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4449 locations in the last 30 days (4605 reports) · Last sighting 19 hours ago

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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.

32080fewer → more

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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/31/20267341 W BARRY AVEDunning29Completed10 daysInternetCity 311
7/31/20268844 S MAY STAuburn Gresham21Completed14 daysInternetCity 311
7/31/20263227 W 83RD STAshburn18Completed13 daysPhone CallCity 311
7/31/20264739 N LONG AVEPortage Park45Completed14 daysAlderman's OfficeCity 311
7/31/20265363 N CENTRAL AVEJefferson Park45Completed14 daysMobile DeviceCity 311
7/31/2026849 N DEARBORN STNear North Side42Completed12 daysMobile DeviceCity 311
7/31/2026905 W CORNELIA AVELake View44Completed12 daysInternetCity 311
7/31/202610501 S LASALLE STRoseland9Completed5 daysPhone CallCity 311
7/31/20262754 S CHRISTIANA AVESouth Lawndale22Completed11 daysMobile DeviceCity 311
7/31/20264949 N MULLIGAN AVEJefferson Park41Completed20 daysMobile DeviceCity 311
7/31/2026913 W CORNELIA AVELake View44Completed12 daysMobile DeviceCity 311
7/31/20268204 S EAST END AVEAvalon Park8Completed19 daysMobile DeviceCity 311
7/31/20263836 W 86TH PLAshburn18Completed11 daysPhone CallCity 311
7/31/20265600 S LAKE PARK AVEHyde Park5Completed19 daysMobile DeviceCity 311
7/31/20262307 W MORSE AVEWest Ridge40Completed12 daysInternetCity 311
7/31/20265801 S SAWYER AVEGage Park14Completed5 daysPhone CallCity 311
7/31/20262537 S TRUMBULL AVESouth Lawndale22Completed11 daysPhone CallCity 311
7/31/20267559 N ROGERS AVERogers Park49Completed12 daysMobile DeviceCity 311
7/31/20264515 N MELVINA AVEPortage Park38Completed6 daysPhone CallCity 311
7/31/20265639 S BLACKSTONE AVEHyde Park5Completed6 daysMobile DeviceCity 311
7/31/20264911 W MONTANA STBelmont Cragin31Completed12 daysMobile DeviceCity 311
7/31/20264900 S WINCHESTER AVENew City15Completed20 daysAlderman's OfficeCity 311
7/31/20264800 S WINCHESTER AVENew City15Completed20 daysAlderman's OfficeCity 311
7/31/20264700 S WINCHESTER AVENew City15Completed19 daysAlderman's OfficeCity 311
7/31/20265000 S DAMEN AVENew City15Completed19 daysAlderman's OfficeCity 311
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