RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4615 locations in the last 30 days (4760 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/6/20253224 N KEATING AVEPortage Park30Completed13 daysInternetCity 311
9/6/20251119 N LATROBE AVEAustin37Completed11 daysInternetCity 311
9/6/20251340 N MENARD AVEAustin29Completed3 daysInternetCity 311
9/6/20251121 S MASON AVEAustin29Completed5 daysInternetCity 311
9/6/20251112 W 104TH STWashington Heights21Completed12 daysInternetCity 311
9/6/20252100 S MICHIGAN AVENear South Side3Completed12 daysInternetCity 311
9/6/20253530 S DR MARTIN LUTHER KING JR DRDouglas4Completed11 daysMobile DeviceCity 311
9/6/20255768 S ARCHER AVEGarfield Ridge23Completed11 daysInternetCity 311
9/6/20254115 N SPAULDING AVEIrving Park33Completed11 daysInternetCity 311
9/6/20253259 S HALSTED STBridgeport11Completed10 daysInternetCity 311
9/6/20255231 W NEWPORT AVEPortage Park31Completed12 daysInternetCity 311
9/6/20251747 N SPAULDING AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
9/6/20253089 S BONFIELD STBridgeport11Completed10 daysPhone CallCity 311
9/6/20254541 N LOWELL AVEIrving Park39Completed12 daysMobile DeviceCity 311
9/6/20253624 N ASHLAND AVELake View47Completed12 daysPhone CallCity 311
9/6/20252904 W 73RD STChicago Lawn18Completed10 daysInternetCity 311
9/6/20252259 W 107TH STMorgan Park19Completed9 daysMobile DeviceCity 311
9/6/20253718 N OKETO AVEDunning38Completed10 daysMobile DeviceCity 311
9/6/20252642 N LECLAIRE AVEBelmont Cragin31Completed12 daysMobile DeviceCity 311
9/6/20253346 N TROY STAvondale33Completed11 daysInternetCity 311
9/6/20252654 W MEDILL AVELogan Square1Completed11 daysMobile DeviceCity 311
9/6/20255149 W OAKDALE AVEBelmont Cragin31Completed12 daysInternetCity 311
9/6/20251222 W 33RD STBridgeport11Completed10 daysInternetCity 311
9/6/20253909 W 70TH STWest Lawn23Completed11 daysMobile DeviceCity 311
9/7/20254833 N WASHTENAW AVELincoln Square40Completed10 daysMobile DeviceCity 311
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