RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4703 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20262548 N ASHLAND AVELincoln Park32Completed13 daysInternetCity 311
8/8/20265501 N CUMBERLAND AVEO'Hare41Completed13 daysPhone CallCity 311
9/15/20264421 W JACKSON BLVDWest Garfield Park28Completed13 daysMobile DeviceCity 311
8/11/20263223 N HOYNE AVENorth Center32Completed13 daysMobile DeviceCity 311
9/2/202638 N LOCKWOOD AVEAustin37Completed13 daysPhone CallCity 311
9/10/202511143 S CHRISTIANA AVEMount Greenwood19Completed13 daysInternetCity 311
8/28/20253528 W 85TH STAshburn18Completed13 daysPhone CallCity 311
7/24/20264518 N LINCOLN AVELincoln Square47Completed13 daysMobile DeviceCity 311
8/13/20254917 N MONTICELLO AVEAlbany Park33Completed13 daysMobile DeviceCity 311
8/22/20251101 N WINCHESTER AVEWest Town1Completed13 daysInternetCity 311
9/10/20261445 W 110TH STMorgan Park21Completed13 daysPhone CallCity 311
9/3/20264938 N WINCHESTER AVELincoln Square47Completed13 daysInternetCity 311
8/8/20265504 W HUTCHINSON STPortage Park38Completed13 daysMobile DeviceCity 311
9/9/20253632 N NEVA AVEDunning38Completed13 daysPhone CallCity 311
8/22/20255054 N MOODY AVEJefferson Park45Completed13 daysMobile DeviceCity 311
8/27/20253640 W 70TH STWest Lawn23Completed13 daysAlderman's OfficeCity 311
9/16/20265851 N SPAULDING AVENorth Park39Completed13 daysPhone CallCity 311
8/23/20252116 W BARRY AVENorth Center32Completed13 daysInternetCity 311
8/6/20264767 N LONG AVEPortage Park45Completed13 daysPhone CallCity 311
8/29/202610117 S LOWE AVEWashington Heights9Completed13 daysPhone CallCity 311
8/18/20264627 W ARMITAGE AVEBelmont Cragin36Completed13 daysMobile DeviceCity 311
8/30/20251520 E 67TH PLSouth Shore5Completed13 daysPhone CallCity 311
9/9/20252801 W DEVON AVEWest Ridge50Completed13 daysMobile DeviceCity 311
9/16/202611131 S DRAKE AVEMount Greenwood19Completed13 daysInternetCity 311
7/14/20263646 N ODELL AVEDunning38Completed13 daysInternetCity 311
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