RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4589 locations in the last 30 days (4745 reports) · Last sighting 21 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/14/20262118 W BELLE PLAINE AVENorth Center47Completed13 daysInternetCity 311
9/2/20261616 W CORNELIA AVELake View47Completed13 daysInternetCity 311
9/2/2026934 W FLETCHER STLake View44Completed13 daysMobile DeviceCity 311
9/9/20253056 N NORDICA AVEMontclare29Completed13 daysPhone CallCity 311
8/14/20264745 N MAPLEWOOD AVELincoln Square40Completed13 daysInternetCity 311
7/20/20266555 N NORTHWEST HWYEdison Park41Completed13 daysInternetCity 311
8/19/20251314 W DIVERSEY PKWYLake View32Completed13 daysMobile DeviceCity 311
9/9/20251454 N FAIRFIELD AVEWest Town26Completed13 daysInternetCity 311
7/13/20263508 N ORIOLE AVEDunning38Completed13 daysPhone CallCity 311
9/3/20252615 W FOSTER AVELincoln Square40Completed13 daysInternetCity 311
7/29/20264926 S HONORE STNew City15Completed13 daysPhone CallCity 311
8/19/20252056 W JARVIS AVERogers Park49Completed13 daysMobile DeviceCity 311
7/27/20263606 S WASHTENAW AVEBrighton Park12Completed13 daysInternetCity 311
9/14/20263008 W CHASE AVEWest Ridge50Completed13 daysInternetCity 311
9/9/20262519 N LOWELL AVEHermosa31Completed13 daysInternetCity 311
8/25/20262534 S THROOP STBridgeport11Completed13 daysMobile DeviceCity 311
9/4/20256205 N TRIPP AVEForest Glen39Completed13 daysInternetCity 311
8/25/20265074 W CORNELIA AVEPortage Park31Completed13 daysPhone CallCity 311
7/10/20263917 N TRIPP AVEIrving Park30Completed13 daysMobile DeviceCity 311
9/10/20261300 N HARDING AVEHumboldt Park36Completed13 daysPhone CallCity 311
7/27/20264223 N BELL AVENorth Center47Completed13 daysMobile DeviceCity 311
9/15/20266030 W ADDISON STDunning38Completed13 daysInternetCity 311
9/7/20262727 N SEMINARY AVELincoln Park43Completed13 daysInternetCity 311
7/14/20261809 W EDDY STNorth Center47Completed13 daysInternetCity 311
8/28/20262911 W GRACE STIrving Park35Completed13 daysInternetCity 311
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