RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4514 locations in the last 30 days (4665 reports) · Last sighting 20 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/19/20251850 W 45TH STNew City15Completed7 daysAlderman's OfficeCity 311
8/19/20259059 S ELLIS AVEBurnside8Completed7 daysAlderman's OfficeCity 311
8/19/20258209 S PEORIA STAuburn Gresham17Completed8 daysInternetCity 311
8/19/20258850 S JUSTINE STAuburn Gresham18Completed8 daysAlderman's OfficeCity 311
8/19/20251943 W WELLINGTON AVENorth Center32Completed14 daysInternetCity 311
8/19/2025842 W WAVELAND AVELake View46Completed14 daysInternetCity 311
8/19/20255644 S KOLIN AVEWest Elsdon13Completed10 daysPhone CallCity 311
8/19/20253223 S HALSTED STBridgeport11Completed8 daysAlderman's OfficeCity 311
8/19/20253154 S EMERALD AVEBridgeport11Completed10 daysAlderman's OfficeCity 311
8/19/20255419 N ARTESIAN AVELincoln Square40Completed9 daysInternetCity 311
8/19/20252251 N LOREL AVEBelmont Cragin36Completed10 daysInternetCity 311
8/19/20251704 W NELSON STLake View32Completed14 daysInternetCity 311
8/19/20254547 W SCHUBERT AVEHermosa31Completed16 daysMobile DeviceCity 311
8/19/20252251 N LOREL AVEBelmont Cragin36Completed10 daysAlderman's OfficeCity 311
8/19/20255228 S RICHMOND STGage Park14Completed6 daysAlderman's OfficeCity 311
8/19/202510641 S CHRISTIANA AVEMount Greenwood19Completed15 daysInternetCity 311
8/19/20258852 S YATES AVECalumet Heights8Completed7 daysAlderman's OfficeCity 311
8/19/20255759 S NOTTINGHAM AVEGarfield Ridge13Completed10 daysMobile DeviceCity 311
8/19/20252938 W MARQUETTE RDChicago Lawn15Completed7 daysAlderman's OfficeCity 311
8/19/20254300 N KIMBALL AVEIrving Park33Completed9 daysInternetCity 311
8/19/20251637 E 92ND STCalumet Heights8Completed7 daysPhone CallCity 311
8/19/20255647 W DAKIN STPortage Park38Completed9 daysPhone CallCity 311
8/19/202511251 S VERNON AVERoseland9Completed10 daysPhone CallCity 311
8/19/20251701 N MILWAUKEE AVEWest Town32Completed14 daysMobile DeviceCity 311
8/19/20254329 W THOMAS STHumboldt Park37Completed14 daysMobile DeviceCity 311
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