RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4473 locations in the last 30 days (4638 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/2/20253328 S LITUANICA AVEBridgeport11Completed6 daysInternetCity 311
8/2/20251823 W SUPERIOR STWest Town36Completed11 daysMobile DeviceCity 311
8/2/20251101 N CALIFORNIA AVEWest Town36Completed12 daysInternetCity 311
8/2/20253735 N OLEANDER AVEDunning38Completed12 daysInternetCity 311
8/2/20256316 N PAULINA STEdgewater40Completed3 daysMobile DeviceCity 311
8/2/20255106 N SAYRE AVENorwood Park41Completed16 daysMobile DeviceCity 311
8/2/20256320 N PAULINA STEdgewater40Completed3 daysMobile DeviceCity 311
8/2/20255317 N CLARK STEdgewater48Completed15 daysMobile DeviceCity 311
8/2/20251436 W BERWYN AVEEdgewater48Completed16 daysMobile DeviceCity 311
8/2/20251430 W SUMMERDALE AVEEdgewater48Completed16 daysMobile DeviceCity 311
8/2/20251619 W HIGHLAND AVEEdgewater40Completed10 daysMobile DeviceCity 311
8/2/20253144 N MONTICELLO AVEAvondale35Completed12 daysMobile DeviceCity 311
8/2/20253922 N OTTAWA AVEDunning38Completed12 daysMobile DeviceCity 311
8/2/20256546 S CLAREMONT AVEChicago Lawn16Completed10 daysMobile DeviceCity 311
8/3/20251744 W CERMAK RDLower West Side25Completed16 daysMobile DeviceCity 311
8/3/20251743 W 21ST PLLower West Side25Completed16 daysMobile DeviceCity 311
8/3/2025424 W BELDEN AVELincoln Park43Completed4 daysPhone CallCity 311
8/3/20256618 S FAIRFIELD AVEChicago Lawn16Completed9 daysPhone CallCity 311
8/3/20252630 W SUMMERDALE AVELincoln Square40Completed9 daysInternetCity 311
8/3/20252637 W SUMMERDALE AVELincoln Square40Completed9 daysInternetCity 311
8/3/20253716 W 115TH STMount Greenwood19Completed11 daysInternetCity 311
8/3/20253089 S BONFIELD STBridgeport11Completed5 daysPhone CallCity 311
8/3/20251430 W BELLE PLAINE AVELake View47Completed11 daysPhone CallCity 311
8/3/2025214 S WABASH AVELoop34Completed2 daysInternetCity 311
8/3/20255139 S MELVINA AVEGarfield Ridge23Completed11 daysPhone CallCity 311
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