RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4412 locations in the last 30 days (4576 reports) · Last sighting 16 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20261813 W CUYLER AVENorth Center47Completed12 daysInternetCity 311
9/10/20267001 S MERRILL AVESouth Shore5Completed12 daysInternetCity 311
9/10/20261956 S ST LOUIS AVENorth Lawndale24Completed13 daysPhone CallCity 311
9/10/202610337 S LEast Side10Completed13 daysMobile DeviceCity 311
9/10/20263668 N ELSTON AVEIrving Park35Completed12 daysInternetCity 311
9/10/20262232 N SEMINARY AVELincoln Park43Completed13 daysInternetCity 311
9/10/20262823 W CULLERTON STSouth Lawndale25Completed12 daysPhone CallCity 311
9/10/20267539 S CHAPPEL AVESouth Shore8Completed7 daysPhone CallCity 311
9/10/20264305 W 47TH STArcher Heights14Completed12 daysInternetCity 311
9/10/20266701 N ASHLAND AVERogers Park49Completed11 daysInternetCity 311
9/10/20262109 N LONG AVEBelmont Cragin36Completed12 daysMobile DeviceCity 311
9/10/20267219 W OLIVE AVENorwood Park41Completed13 daysPhone CallCity 311
9/10/20265127 N DRAKE AVENorth Park39Completed14 daysPhone CallCity 311
9/10/20265842 W GUNNISON STJefferson Park45Completed13 daysPhone CallCity 311
9/10/20266915 S KOMENSKY AVEWest Lawn23Completed12 daysPhone CallCity 311
9/10/20261119 W 17TH STLower West Side25Completed12 daysPhone CallCity 311
9/10/20261122 W 17TH STLower West Side25Completed12 daysPhone CallCity 311
9/10/20261829 N WILMOT AVELogan Square32Completed7 daysPhone CallCity 311
9/10/20264801 N CENTRAL AVEJefferson Park45Completed11 daysInternetCity 311
9/10/20266206 N FRANCISCO AVEWest Ridge50Completed14 daysPhone CallCity 311
9/10/2026918 N LARAMIE AVEAustin37Canceled0 daysPhone CallCity 311
9/10/20263612 N SACRAMENTO AVEIrving Park35Completed14 daysPhone CallCity 311
9/10/20263442 S UNION AVEBridgeport11Completed8 daysPhone CallCity 311
9/10/20265003 N WINCHESTER AVELincoln Square40Completed13 daysInternetCity 311
9/10/20261943 W GREENLEAF AVERogers Park49Completed11 daysInternetCity 311
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