RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4499 locations in the last 30 days (4661 reports) · Last sighting 18 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20261330 W WELLINGTON AVELake View32Completed16 daysInternetCity 311
8/4/20262702 N TROY STLogan Square35Completed16 daysMobile DeviceCity 311
8/2/20256232 W NORWOOD STNorwood Park39Completed16 daysMobile DeviceCity 311
8/2/20256236 W NORWOOD STNorwood Park39Completed16 daysMobile DeviceCity 311
8/9/20267721 W PATTERSON AVEDunning38Completed16 daysInternetCity 311
8/8/2026326 W SCHILLER STNear North Side27Completed16 daysMobile DeviceCity 311
8/3/20251743 W 21ST PLLower West Side25Completed16 daysMobile DeviceCity 311
8/3/20251744 W CERMAK RDLower West Side25Completed16 daysMobile DeviceCity 311
8/18/20263991 S ARCHER AVEBrighton Park12Completed16 daysMobile DeviceCity 311
8/22/20234338 S LANGLEY AVEGrand Boulevard4Completed16 daysMobile DeviceCity 311
8/5/20263317 N OVERHILL AVEDunning38Completed16 daysMobile DeviceCity 311
8/24/20263054 N RACINE AVELake View32Completed16 daysPhone CallCity 311
8/25/20263433 W GRENSHAW STNorth Lawndale24Completed16 daysMobile DeviceCity 311
8/5/20263907 N NORDICA AVEDunning38Completed16 daysPhone CallCity 311
8/12/20267523 S GREEN STAuburn Gresham17Completed16 daysPhone CallCity 311
8/26/20262805 W DEVON AVEWest Ridge50Completed16 daysMobile DeviceCity 311
9/9/20264115 W 77TH PLAshburn18Completed16 daysInternetCity 311
8/17/20261448 W HIGHLAND AVEEdgewater48Completed16 daysPhone CallCity 311
8/5/20263911 N NORDICA AVEDunning38Completed16 daysPhone CallCity 311
9/8/20267736 S ALBANY AVEAshburn18Completed16 daysAlderman's OfficeCity 311
10/18/2023740 S FEDERAL STLoop4Completed16 daysMobile DeviceCity 311
8/12/20267121 S LOOMIS BLVDWest Englewood17Completed16 daysInternetCity 311
8/19/2025745 W BRIAR PLLake View44Completed16 daysMobile DeviceCity 311
8/9/20262202 N MAJOR AVEBelmont Cragin36Completed16 daysMobile DeviceCity 311
8/12/20267553 S EMERALD AVEEnglewood17Completed16 daysInternetCity 311
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