RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4475 locations in the last 30 days (4640 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
8/2/20256339 S LOREL AVEClearing13Completed10 daysPhone CallCity 311
8/2/20253805 W 60TH PLWest Lawn23Completed10 daysInternetCity 311
8/2/20252215 S TROY STSouth Lawndale24Completed10 daysMobile DeviceCity 311
8/2/20256920 N CLARK STRogers Park49Completed9 daysMobile DeviceCity 311
8/2/202542 N PARKSIDE AVEAustin29Completed9 daysPhone CallCity 311
8/2/20253408 W CHICAGO AVEHumboldt Park27Completed10 daysPhone CallCity 311
8/2/20254614 S CALUMET AVEGrand Boulevard3Completed6 daysInternetCity 311
8/2/20255130 S ELLIS AVEHyde Park5Completed11 daysMobile DeviceCity 311
8/2/20254413 N MAGNOLIA AVEUptown46Completed12 daysPhone CallCity 311
8/2/20254844 N KOSTNER AVEAlbany Park39Completed9 daysMobile DeviceCity 311
8/2/20256314 S KNOX AVEClearing13Completed11 daysInternetCity 311
8/2/20255015 W STRONG STJefferson Park45Completed4 daysInternetCity 311
8/2/20255017 W STRONG STJefferson Park45Completed4 daysInternetCity 311
8/2/20253733 N OLEANDER AVEDunning38Completed12 daysMobile DeviceCity 311
8/2/20253729 N OLEANDER AVEDunning38Completed12 daysMobile DeviceCity 311
8/2/20254110 N MOZART STIrving Park33Completed11 daysInternetCity 311
8/2/20254542 W JACKSON BLVDWest Garfield Park28Completed9 daysMobile DeviceCity 311
8/2/20256724 N RICHMOND STWest Ridge50Completed9 daysInternetCity 311
8/2/20254942 N KOSTNER AVEAlbany Park39Completed9 daysMobile DeviceCity 311
8/2/20252843 N WASHTENAW AVEAvondale35Completed12 daysMobile DeviceCity 311
8/2/20256218 W ROSCOE STDunning30Completed13 daysPhone CallCity 311
8/2/20254340 W SHAKESPEARE AVEHermosa35Completed12 daysInternetCity 311
8/2/20254535 N MULLIGAN AVEPortage Park38Completed13 daysInternetCity 311
8/2/20259558 S CLAREMONT AVEBeverly19Completed11 daysPhone CallCity 311
8/2/20255959 N GREENVIEW AVEEdgewater48Completed17 daysMobile DeviceCity 311
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