RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4387 locations in the last 30 days (4549 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/17/20265353 N MULLIGAN AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/30/20262708 W 24TH PLSouth Lawndale24Completed15 daysMobile DeviceCity 311
8/17/20268408 S BURNHAM AVESouth Chicago7Completed15 daysPhone CallCity 311
8/4/20263826 N WAYNE AVELake View44Completed15 daysPhone CallCity 311
9/10/20265930 N HERMITAGE AVEEdgewater40Completed15 daysMobile DeviceCity 311
8/18/20262700 N WAYNE AVELincoln Park32Completed15 daysMobile DeviceCity 311
8/25/20266016 N MARMORA AVEJefferson Park39Completed15 daysPhone CallCity 311
9/9/20262443 W DIVERSEY AVELogan Square35Completed15 daysMobile DeviceCity 311
8/27/20265205 N KIMBALL AVENorth Park39Completed15 daysPhone CallCity 311
8/24/20265128 N AUSTIN AVEJefferson Park45Completed15 daysMobile DeviceCity 311
7/13/20264340 W AUGUSTA BLVDHumboldt Park37Completed15 daysPhone CallCity 311
9/2/20265233 N ASHLAND AVEEdgewater40Completed15 daysInternetCity 311
8/6/20264229 N MARMORA AVEPortage Park38Completed15 daysAlderman's OfficeCity 311
7/13/20264247 W IOWA STHumboldt Park37Completed15 daysAlderman's OfficeCity 311
8/20/2025935 N HAMLIN AVEHumboldt Park27Completed15 daysPhone CallCity 311
8/26/20261510 W HENDERSON STLake View32Completed15 daysPhone CallCity 311
8/12/20262155 W WINDSOR AVELincoln Square47Completed15 daysMobile DeviceCity 311
8/18/2025909 W DIVERSEY AVELincoln Park43Completed15 daysPhone CallCity 311
9/2/20265200 S WASHTENAW AVEGage Park14Completed15 daysMobile DeviceCity 311
9/30/20252724 S QUINN STBridgeport11Completed15 daysAlderman's OfficeCity 311
9/6/20263111 N SEMINARY AVELake View44Completed15 daysMobile DeviceCity 311
8/6/20267612 W BALMORAL AVENorwood Park41Completed15 daysPhone CallCity 311
8/25/20263615 N CAMPBELLNorth Center47Completed15 daysSalesforce Mobile AppCity 311
9/1/20264111 N WESTERN AVENorth Center47Completed15 daysInternetCity 311
8/12/20262116 W BELLE PLAINE AVENorth Center47Completed15 daysMobile DeviceCity 311
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