RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4700 locations in the last 30 days (4853 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.

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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/2025527 W 43RD STNew City11Completed10 daysPhone CallCity 311
8/24/20251645 N FRANCISCO AVEWest Town26Completed11 daysMobile DeviceCity 311
8/24/20254724 N KEWANEE AVEAlbany Park39Completed12 daysMobile DeviceCity 311
8/24/20252617 W IOWA STWest Town36Completed15 daysMobile DeviceCity 311
8/24/20253411 W 115TH PLMount Greenwood19Completed3 daysMobile DeviceCity 311
8/24/20253850 W ARGYLE STAlbany Park39Completed12 daysInternetCity 311
8/24/20252743 N TROY STLogan Square35Completed10 daysMobile DeviceCity 311
8/24/20253632 N PAULINA STLake View47Completed11 daysMobile DeviceCity 311
8/24/20252709 W RASCHER AVELincoln Square40Completed3 daysMobile DeviceCity 311
8/24/20253634 N PAULINA STLake View47Completed11 daysMobile DeviceCity 311
8/24/20251333 W HOLLYWOOD AVEEdgewater48Completed9 daysInternetCity 311
8/24/20255523 N LOTUS AVEJefferson Park45Completed9 daysInternetCity 311
8/24/20252615 W FOSTER AVELincoln Square40Completed4 daysInternetCity 311
8/24/2025660 W BARRY AVELake View44Completed11 daysInternetCity 311
8/24/20253219 W ARMITAGE AVELogan Square26Completed9 daysInternetCity 311
8/24/20252802 N WOLCOTT AVENorth Center32Completed12 daysMobile DeviceCity 311
8/24/20253238 W BEACH AVEHumboldt Park26Completed12 daysMobile DeviceCity 311
8/24/20253611 W 115TH STMount Greenwood19Completed3 daysMobile DeviceCity 311
8/24/20251626 S WABASH AVENear South Side3Completed4 daysInternetCity 311
8/24/2025172 W BURTON PLNear North Side2Completed11 daysInternetCity 311
8/24/20251310 W 107TH STWashington Heights21Completed10 daysMobile DeviceCity 311
8/24/20253127 S ARCHER AVEMcKinley Park12Completed5 daysInternetCity 311
8/24/202513305 S BRAINARD AVEHegewisch10Completed8 daysInternetCity 311
8/24/20254531 N WHIPPLE STAlbany Park33Completed11 daysMobile DeviceCity 311
8/24/20254533 N WHIPPLE STAlbany Park33Completed11 daysMobile DeviceCity 311
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