RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4403 locations in the last 30 days (4566 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/2025111 S WACKER DRLoop42Completed3 daysAlderman's OfficeCity 311
10/7/2025834 W MONROE STNear West Side34Completed2 daysAlderman's OfficeCity 311
10/7/2025350 N CANAL STNear West Side34Completed2 daysAlderman's OfficeCity 311
10/7/2025500 W MONROE STNear West Side34Completed2 daysAlderman's OfficeCity 311
10/7/20251513 S HARDING AVENorth Lawndale24Completed2 daysPhone CallCity 311
10/7/20253755 S EMERALD AVEBridgeport11Completed3 daysAlderman's OfficeCity 311
10/7/2025600 E 102ND PLRoseland9Completed8 daysPhone CallCity 311
10/7/20251834 N KEDZIE AVELogan Square26Completed9 daysInternetCity 311
10/7/20257136 S PEORIA STEnglewood17Completed13 daysAlderman's OfficeCity 311
10/7/202510259 S AVENUE JEast Side10Completed3 daysPhone CallCity 311
10/7/20255610 N MENARD AVEJefferson Park45Completed10 daysMobile DeviceCity 311
10/7/20255606 N MENARD AVEJefferson Park45Completed10 daysMobile DeviceCity 311
10/7/20254330 W ADAMS STWest Garfield Park28Completed7 daysAlderman's OfficeCity 311
10/7/20251630 N DAYTON STLincoln Park43Completed7 daysInternetCity 311
10/7/20258101 W HIGGINS RDNorwood Park—Completed8 daysInternetCity 311
10/7/20256238 W BARRY AVEBelmont Cragin30Completed7 daysMobile DeviceCity 311
10/7/20254631 S KARLOV AVEArcher Heights14Completed10 daysMobile DeviceCity 311
10/7/202533 W DELAWARE PLNear North Side42Completed2 daysInternetCity 311
10/7/20255919 W WILSON AVEPortage Park38Completed10 daysInternetCity 311
10/7/20255622 W GOODMAN STJefferson Park45Completed10 daysInternetCity 311
10/7/20252704 S HILLOCK AVEBridgeport11Completed3 daysMobile DeviceCity 311
10/7/20256024 S MAYFIELD AVEClearing13Completed8 daysMobile DeviceCity 311
10/7/20256022 S MAYFIELD AVEClearing13Completed8 daysMobile DeviceCity 311
10/7/20256025 S MAYFIELD AVEClearing13Completed8 daysMobile DeviceCity 311
10/7/20256020 S MAYFIELD AVEClearing13Completed8 daysMobile DeviceCity 311
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