RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4557 locations in the last 30 days (4704 reports) · Last sighting 22 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/11/20263026 N LOWELL AVEHermosa31Completed13 daysMobile DeviceCity 311
8/11/20264546 N KEDZIE AVEAlbany Park33Completed13 daysMobile DeviceCity 311
8/11/20261415 W MELROSE STLake View32Completed13 daysMobile DeviceCity 311
8/11/20263641 N HERMITAGE AVELake View47Completed7 daysMobile DeviceCity 311
8/11/20264616 S LAKE PARK AVEKenwood4Completed14 daysPhone CallCity 311
8/11/20263223 N HOYNE AVENorth Center32Completed13 daysMobile DeviceCity 311
8/11/20261119 W 17TH STLower West Side25Completed0 daysPhone CallCity 311
8/11/20263300 W CONGRESS PKWYEast Garfield Park28Completed13 daysInternetCity 311
8/11/20265301 N NEW ENGLAND AVENorwood Park41Completed8 daysInternetCity 311
8/11/20265015 N CENTRAL AVEJefferson Park45Completed14 daysMobile DeviceCity 311
8/11/20262160 N PARKSIDE AVEBelmont Cragin36Completed14 daysMobile DeviceCity 311
8/11/2026621 W ADDISON STLake View46Completed13 daysInternetCity 311
8/11/20264800 W BELDEN AVEBelmont Cragin31Completed10 daysPhone CallCity 311
8/11/20264900 W BELDEN AVEBelmont Cragin31Completed10 daysPhone CallCity 311
8/11/20264900 W DEMING PLBelmont Cragin31Completed2 daysPhone CallCity 311
8/11/20264800 W DEMING PLBelmont Cragin31Completed2 daysPhone CallCity 311
8/11/20264900 W ALTGELD STBelmont Cragin31Completed10 daysPhone CallCity 311
8/11/20264800 W ALTGELD STBelmont Cragin31Completed10 daysPhone CallCity 311
8/11/20265137 W MELROSE STPortage Park31Completed2 daysMobile DeviceCity 311
8/11/20263805 W 86TH PLAshburn18Completed7 daysPhone CallCity 311
8/11/20263525 N NEVA AVEDunning38Completed15 daysInternetCity 311
8/11/20265104 W FLETCHER STBelmont Cragin31Completed2 daysPhone CallCity 311
8/11/20263054 N RACINE AVELake View32Completed13 daysPhone CallCity 311
8/11/202610112 S UNION AVEWashington Heights21Completed9 daysMobile DeviceCity 311
8/11/20265608 W IRVING PARK RDPortage Park38Completed14 daysMobile DeviceCity 311
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