RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4589 locations in the last 30 days (4746 reports) · Last sighting 22 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.

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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/16/20253829 N LAKEWOOD AVELake View44Completed6 daysInternetCity 311
8/16/20253823 N LAKEWOOD AVELake View44Completed6 daysInternetCity 311
8/16/20256776 N IONIA AVEForest Glen45Completed9 daysInternetCity 311
8/16/20257765 W THORNDALE AVENorwood Park41Completed9 daysInternetCity 311
8/16/20254845 N CENTRAL AVEJefferson Park45Completed9 daysInternetCity 311
8/16/20257009 S BISHOP STWest Englewood17Completed13 daysPhone CallCity 311
8/16/2025605 W 46TH STNew City15Completed5 daysMobile DeviceCity 311
8/16/20254520 S WALLACE STNew City15Completed5 daysMobile DeviceCity 311
8/16/20257325 S ROCKWELL STChicago Lawn18Completed6 daysInternetCity 311
8/16/2025711 N THROOP STWest Town27Completed4 daysMobile DeviceCity 311
8/16/2025827 W 34TH PLBridgeport11Completed10 daysMobile DeviceCity 311
8/16/20256772 N IONIA AVEForest Glen45Completed9 daysInternetCity 311
8/16/20251001 W JACKSON BLVDNear West Side34Completed4 daysMobile DeviceCity 311
8/16/20257512 S CALUMET AVEGreater Grand Crossing6Completed10 daysInternetCity 311
8/16/20257524 S CALUMET AVEGreater Grand Crossing6Completed10 daysInternetCity 311
8/16/20259518 S PRAIRIE AVERoseland9Completed11 daysInternetCity 311
8/16/2025831 N MOZART STWest Town36Completed11 daysPhone CallCity 311
8/16/20255902 W WAVELAND AVEPortage Park38Completed10 daysInternetCity 311
8/16/20255840 W WAVELAND AVEPortage Park38Completed6 daysInternetCity 311
8/16/20255915 W WARWICK AVEPortage Park38Completed5 daysInternetCity 311
8/16/20255630 S KILDARE AVEWest Elsdon13Completed11 daysPhone CallCity 311
8/16/20252836 W BARRY AVEAvondale35Completed11 daysInternetCity 311
8/16/20257026 W SCHOOL STDunning38Completed6 daysInternetCity 311
8/16/20253133 W AUGUSTA BLVDHumboldt Park36Completed11 daysPhone CallCity 311
8/16/20255331 S GREENWOOD AVEHyde Park5Completed12 daysInternetCity 311
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