RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4529 locations in the last 30 days (4677 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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/6/20266720 S CORNELL AVESouth Shore5Completed12 daysPhone CallCity 311
7/8/202610236 S RHODES AVERoseland9Completed12 daysPhone CallCity 311
8/15/20251510 N ELSTON AVEWest Town27Completed12 daysMobile DeviceCity 311
8/30/20261638 W CATALPA AVEEdgewater40Completed12 daysMobile DeviceCity 311
7/31/20263801 W 63RD PLWest Lawn23Completed12 daysMobile DeviceCity 311
8/1/20261656 N FRANCISCO AVEWest Town26Completed12 daysInternetCity 311
9/2/202510807 S DRAKE AVEMount Greenwood19Completed12 daysInternetCity 311
7/25/20263710 N SACRAMENTO AVEIrving Park35Completed12 daysInternetCity 311
7/17/20264315 W WRIGHTWOOD AVEHermosa31Completed12 daysMobile DeviceCity 311
9/19/20261610 N SAWYER AVEHumboldt Park26Completed12 daysInternetCity 311
9/3/20252222 W GIDDINGS STLincoln Square47Completed12 daysInternetCity 311
7/23/20265161 W DEVON AVEForest Glen39Completed12 daysInternetCity 311
9/19/202611400 S HALE AVEMorgan Park19Completed12 daysInternetCity 311
9/19/202611400 S HALE AVEMorgan Park19Completed12 daysInternetCity 311
8/13/20263089 S BONFIELD STBridgeport11Completed12 daysPhone CallCity 311
9/10/20266917 S PAXTON AVESouth Shore5Completed12 daysInternetCity 311
9/9/20254024 W 47TH STArcher Heights14Completed12 daysInternetCity 311
9/17/20262649 W RASCHER AVELincoln Square40Completed12 daysMobile DeviceCity 311
8/21/20251423 W CUYLER AVELake View47Completed12 daysInternetCity 311
7/30/20254337 W PARKER AVEHermosa31Completed12 daysMobile DeviceCity 311
8/23/20262015 W ADDISON STNorth Center47Completed12 daysMobile DeviceCity 311
8/29/20261330 W CULLERTON STLower West Side25Completed12 daysMobile DeviceCity 311
8/28/20253100 N OCTAVIA AVEDunning29Completed12 daysMobile DeviceCity 311
9/17/20251100 N LATROBE AVEAustin37Completed12 daysPhone CallCity 311
7/22/20254254 N SPRINGFIELD AVEIrving Park39Completed12 daysMobile DeviceCity 311
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