RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4433 locations in the last 30 days (4590 reports) · Last sighting 5 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

57,080 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/26/2026720 W CORNELIA AVELake View46Completed2 daysInternetCity 311
6/14/20264631 N KENTON AVEIrving Park39Completed2 daysInternetCity 311
11/18/20254431 S CALUMET AVEGrand Boulevard3Completed2 daysPhone CallCity 311
3/24/20264317 N MARMORA AVEPortage Park38Completed2 daysPhone CallCity 311
12/27/20253828 W MARQUETTE RDWest Lawn23Completed2 daysMobile DeviceCity 311
10/26/20256438 S MARYLAND AVEWoodlawn20Completed2 daysPhone CallCity 311
6/10/20268010 S MARSHFIELD AVEAuburn Gresham17Completed2 daysInternetCity 311
3/4/20263851 N LAKEWOOD AVELake View44Completed2 daysPhone CallCity 311
3/30/20263400 N HARDING AVEAvondale30Completed2 daysAlderman's OfficeCity 311
6/7/20265624 W HURON STAustin29Completed2 daysMobile DeviceCity 311
4/22/20263122 S PRINCETON AVEArmour Square11Completed2 daysPhone CallCity 311
11/17/20254131 N FRANCISCO AVEIrving Park33Completed2 daysInternetCity 311
4/11/20262338 N KIMBALL AVELogan Square35Completed2 daysPhone CallCity 311
5/13/20263637 N CLAREMONT AVENorth Center47Completed2 daysInternetCity 311
2/14/2026537 W DEMING PLLincoln Park43Completed2 daysMobile DeviceCity 311
1/31/20261125 N ASHLAND AVEWest Town1Completed2 daysInternetCity 311
11/24/202510615 S SANGAMON STWashington Heights21Completed2 daysPhone CallCity 311
4/11/20264725 N WESTERN AVELincoln Square47Completed2 daysInternetCity 311
6/24/20261032 W 31ST PLBridgeport11Completed2 daysInternetCity 311
7/11/20261210 W LEXINGTON STNear West Side34Completed2 daysMobile DeviceCity 311
6/30/202645 N LOTUS AVEAustin37Completed2 daysPhone CallCity 311
10/28/20252112 N WESTERN AVELogan Square1Completed2 daysPhone CallCity 311
11/24/20253517 N ODELL AVEDunning38Completed2 daysInternetCity 311
4/13/20267526 S PHILLIPS AVESouth Shore7Completed2 daysInternetCity 311
4/15/20262729 N ARTESIAN AVELogan Square35Completed2 daysPhone CallCity 311
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