RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4712 locations in the last 30 days (4870 reports) · Last sighting 20 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.

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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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/23/20261142 N WOOD STWest Town1Completed12 daysInternetCity 311
9/5/20253745 W DICKENS AVELogan Square26Completed12 daysInternetCity 311
9/4/20262354 S WENTWORTH AVEArmour Square11Completed12 daysAlderman's OfficeCity 311
8/12/20261902 N DEAN STWest Town1Completed12 daysMobile DeviceCity 311
8/14/20262802 W CHICAGO AVEWest Town36Completed12 daysInternetCity 311
8/15/2026433 W DIVERSEY PKWYLincoln Park43Completed12 daysMobile DeviceCity 311
7/30/20265624 S NEW ENGLAND AVEGarfield Ridge13Completed12 daysInternetCity 311
8/13/20263448 W DIVERSEY AVEAvondale35Completed12 daysAlderman's OfficeCity 311
9/11/20251833 W NORWOOD STWest Ridge40Completed12 daysPhone CallCity 311
9/9/20266400 N WAYNE AVERogers Park49Completed12 daysPhone CallCity 311
9/16/20262307 W WASHINGTON BLVDNear West Side27Completed12 daysPhone CallCity 311
9/11/2026750 W BELDEN AVELincoln Park43Completed12 daysInternetCity 311
9/3/20256710 S PERRY AVEGreater Grand Crossing6Completed12 daysPhone CallCity 311
8/8/20254125 N LEAMINGTON AVEPortage Park38Completed12 daysMobile DeviceCity 311
8/2/20252738 N ST LOUIS AVELogan Square35Completed12 daysInternetCity 311
9/3/20261454 S HARDING AVENorth Lawndale24Completed12 daysInternetCity 311
8/8/2025432 N CENTRAL PARK AVEHumboldt Park27Completed12 daysInternetCity 311
8/19/20261337 W HENDERSON STLake View44Completed12 daysAlderman's OfficeCity 311
9/16/20262930 N WISNER AVEAvondale35Completed12 daysInternetCity 311
7/9/20263832 N LINCOLN AVENorth Center47Completed12 daysMobile DeviceCity 311
9/19/20266239 W FLETCHER STBelmont Cragin30Completed12 daysInternetCity 311
8/24/20251843 W LARCHMONT AVENorth Center47Completed12 daysMobile DeviceCity 311
9/18/20257800 S WOLCOTT AVEAuburn Gresham17Completed12 daysMobile DeviceCity 311
8/5/20263034 W GUNNISON STAlbany Park33Completed12 daysMobile DeviceCity 311
8/19/20268637 S VERNON AVEChatham6Completed12 daysPhone CallCity 311
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