RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4582 locations in the last 30 days (4739 reports) · Last sighting 23 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.

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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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/20264844 N WINCHESTER AVELincoln Square47Completed13 daysMobile DeviceCity 311
7/28/20262219 W WELLINGTON AVENorth Center32Completed13 daysInternetCity 311
9/11/20263500 N FREMONT STLake View44Completed13 daysInternetCity 311
8/22/2025119 W CHESTNUT STNear North Side2Completed13 daysAlderman's OfficeCity 311
7/15/20261619 N HUMBOLDTWest Town26Completed13 daysPhone CallCity 311
8/18/20264430 N MELVINA AVEPortage Park38Completed13 daysInternetCity 311
9/4/20253620 W MARQUETTE RDWest Lawn23Completed13 daysAlderman's OfficeCity 311
9/3/20253720 W MCLEAN AVELogan Square26Completed13 daysInternetCity 311
9/16/20265412 N CAMPBELL AVELincoln Square40Completed13 daysInternetCity 311
8/12/202510422 S CLAREMONT AVEBeverly19Completed13 daysAlderman's OfficeCity 311
9/11/20263235 N WILTON AVELake View44Completed13 daysInternetCity 311
9/15/20266200 S DAMEN AVEWest Englewood16Completed13 daysPhone CallCity 311
8/18/20262621 W CATALPA AVELincoln Square40Completed13 daysInternetCity 311
9/9/20252051 W BIRCHWOOD AVERogers Park49Completed13 daysAlderman's OfficeCity 311
8/28/20265852 W DAKIN STPortage Park38Completed13 daysInternetCity 311
7/30/20265822 W ROSCOE STPortage Park30Completed13 daysInternetCity 311
9/17/202610600 S AVENUE BEast Side10Completed13 daysAlderman's OfficeCity 311
8/29/20256157 N FAIRFIELD AVEWest Ridge40Completed13 daysMobile DeviceCity 311
8/18/20261940 W FOSTER AVELincoln Square40Completed13 daysInternetCity 311
7/29/20261609 W SHERWIN AVERogers Park49Completed13 daysAlderman's OfficeCity 311
7/15/20268407 S DAMEN AVEAuburn Gresham18Completed13 daysPhone CallCity 311
9/17/20262128 S HARDING AVENorth Lawndale24Completed13 daysMobile DeviceCity 311
7/31/20264601 S HALSTED STNew City15Completed13 daysAlderman's OfficeCity 311
7/10/2026701 W 48TH PLNew City15Completed13 daysPhone CallCity 311
7/14/20265534 W LAWRENCE AVEJefferson Park45Completed13 daysInternetCity 311
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