RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4357 locations in the last 30 days (4539 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/15/20256145 N ELSTON AVENorwood Park39Completed2 daysPhone CallCity 311
11/15/20255952 W NEWPORT AVEPortage Park30Completed2 daysInternetCity 311
11/15/2025924 W CUYLER AVEUptown46Completed2 daysInternetCity 311
11/15/2025859 N DEARBORN STNear North Side42Completed3 daysMobile DeviceCity 311
11/15/20255023 W WEST END AVEAustin28Completed3 daysInternetCity 311
11/15/20256823 W 64TH PLClearing13Completed3 daysMobile DeviceCity 311
11/15/20251845 W OHIO STWest Town36Completed2 daysInternetCity 311
11/15/20254306 W WRIGHTWOOD AVEHermosa31Completed2 daysMobile DeviceCity 311
11/15/20255920 S NORMANDY AVEClearing13Completed3 daysInternetCity 311
11/15/20254953 N WHIPPLE STAlbany Park33Completed2 daysInternetCity 311
11/15/20253643 N CAMPBELL AVENorth Center47Completed2 daysMobile DeviceCity 311
11/15/20254031 N SPAULDING AVEIrving Park33Completed1 dayInternetCity 311
11/15/20254535 S HARDING AVEArcher Heights14Completed2 daysInternetCity 311
11/15/20255008 N SAWYER AVEAlbany Park33Completed2 daysMobile DeviceCity 311
11/15/2025901 N HARDING AVEHumboldt Park37Completed1 dayInternetCity 311
11/15/20252903 N HOYNE AVENorth Center32Completed3 daysMobile DeviceCity 311
11/15/20253453 N MARSHFIELD AVELake View47Completed2 daysMobile DeviceCity 311
11/15/20251916 S MAY STLower West Side25Completed2 daysMobile DeviceCity 311
11/15/20253248 W HURON STHumboldt Park27Completed3 daysMobile DeviceCity 311
11/15/20254711 W HUTCHINSON STPortage Park45Completed2 daysInternetCity 311
11/16/20254010 N HOYNE AVENorth Center47Completed1 dayMobile DeviceCity 311
11/16/20257410 S RACINE AVEWest Englewood17Completed2 daysMobile DeviceCity 311
11/16/20257252 S HARVARD AVEGreater Grand Crossing6Completed2 daysInternetCity 311
11/16/20251353 N STATE PKWYNear North Side43Completed3 daysInternetCity 311
11/16/202511000 S NORMAL AVERoseland21Completed1 dayInternetCity 311
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