RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4534 locations in the last 30 days (4688 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/20256012 N MASON AVEJefferson Park39Completed6 daysInternetCity 311
8/14/20254157 N LEAMINGTON AVEPortage Park38Completed6 daysPhone CallCity 311
8/14/20255601 S PARKSIDE AVEGarfield Ridge13Completed8 daysPhone CallCity 311
8/14/20252311 W WASHINGTON BLVDNear West Side27Completed6 daysPhone CallCity 311
8/14/20254530 N CLAREMONT AVELincoln Square47Completed12 daysMobile DeviceCity 311
8/14/2025900 W ERIE STWest Town27Completed12 daysMobile DeviceCity 311
8/14/20255911 S PRINCETON AVEEnglewood20Completed12 daysPhone CallCity 311
8/14/20258232 S FAIRFIELD AVEAshburn18Completed5 daysMobile DeviceCity 311
8/14/20258009 S MORGAN STAuburn Gresham17Completed8 daysMobile DeviceCity 311
8/14/20251531 N LEAMINGTON AVEAustin37Completed13 daysInternetCity 311
8/14/20251539 N MAPLEWOOD AVEWest Town1Completed8 daysInternetCity 311
8/14/20253448 W BELLE PLAINE AVEIrving Park33Completed11 daysInternetCity 311
8/14/20251747 N KEDZIE AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
8/14/20251219 N NOBLE STWest Town1Completed8 daysMobile DeviceCity 311
8/14/20251661 N BISSELL STLincoln Park43Completed5 daysAlderman's OfficeCity 311
8/14/20256115 N SAUGANASH AVEForest Glen39Completed12 daysAlderman's OfficeCity 311
8/14/2025552 W OAKDALE AVELake View44Completed19 daysPhone CallCity 311
8/14/20253033 N SPAULDING AVEAvondale35Completed11 daysInternetCity 311
8/14/20254741 N TROY STAlbany Park33Completed4 daysPhone CallCity 311
8/14/20251910 W CORTLAND STLogan Square32Completed11 daysInternetCity 311
8/14/20256400 N NEWCASTLE AVENorwood Park41Completed11 daysMobile DeviceCity 311
8/14/20255008 N NOTTINGHAM AVENorwood Park41Completed8 daysPhone CallCity 311
8/14/20253719 W DEVON AVENorth Park50Completed13 daysInternetCity 311
8/14/20255233 S HARDING AVEWest Elsdon23Completed11 daysPhone CallCity 311
8/14/20256714 S KOLIN AVEWest Lawn23Completed12 daysAlderman's OfficeCity 311
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