RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4564 locations in the last 30 days (4719 reports) · Last sighting 24 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/20261732 N SPAULDING AVEHumboldt Park26Completed14 daysInternetCity 311
8/3/20265013 W GLADYS AVEAustin29Completed7 daysInternetCity 311
8/3/20265115 S LEAMINGTON AVEGarfield Ridge23Completed10 daysPhone CallCity 311
8/3/202611138 S EMERALD AVERoseland21Completed2 daysPhone CallCity 311
8/3/20264931 N MASON AVEJefferson Park45Completed1 dayPhone CallCity 311
8/3/20264706 N LAMON AVEPortage Park45Completed16 daysInternetCity 311
8/3/20263304 W LEXINGTON STEast Garfield Park24Completed3 daysPhone CallCity 311
8/3/20263044 N CLYBOURN AVENorth Center32Completed7 daysInternetCity 311
8/3/20265810 S NARRAGANSETT AVEGarfield Ridge13Completed10 daysInternetCity 311
8/3/20263729 W EASTWOOD AVEAlbany Park33Completed14 daysPhone CallCity 311
8/3/20268020 S SACRAMENTO AVEAshburn18Completed11 daysInternetCity 311
8/3/20262237 N ORCHARD STLincoln Park43Completed16 daysInternetCity 311
8/3/20263940 W 82ND PLAshburn18Completed8 daysInternetCity 311
8/3/20265528 N PARKSIDE AVEJefferson Park45Completed1 dayPhone CallCity 311
8/3/20263348 S MAY STBridgeport11Completed10 daysPhone CallCity 311
8/3/20268361 W SUMMERDALE AVENorwood Park41Completed1 dayPhone CallCity 311
8/3/20264845 N MULLIGAN AVEJefferson Park41Completed1 dayPhone CallCity 311
8/3/20262334 N SAWYERLogan Square35Completed9 daysSalesforce Mobile AppCity 311
8/3/20261249 W ARDMORE AVEEdgewater48Completed1 dayPhone CallCity 311
8/3/20264507 S WHIPPLE STBrighton Park12Completed11 daysMobile DeviceCity 311
8/3/20264501 N MOBILE AVEPortage Park38Completed14 daysPhone CallCity 311
8/3/20265337 S MULLIGAN AVEGarfield Ridge23Completed8 daysPhone CallCity 311
8/3/20263116 W CHASE AVEWest Ridge50Completed9 daysPhone CallCity 311
8/3/20263024 S LOOMIS STBridgeport11Completed10 daysAlderman's OfficeCity 311
8/3/20264910 W NEWPORT AVEPortage Park31Completed10 daysPhone CallCity 311
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