RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4582 locations in the last 30 days (4740 reports) · Last sighting 12 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/3/20263510 N SOUTHPORT AVELake View44Completed13 daysInternetCity 311
9/3/20261410 W CORNELIA AVELake View44Completed13 daysInternetCity 311
9/3/20264511 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed5 daysPhone CallCity 311
9/3/2026849 N HERMITAGE AVEWest Town1Completed15 daysInternetCity 311
9/3/20268145 S SOUTH SHORE DRSouth Chicago7Completed6 daysPhone CallCity 311
9/3/20262026 W 18TH PLLower West Side25Completed14 daysMobile DeviceCity 311
9/3/20262170 N MAJOR AVEBelmont Cragin36Completed11 daysMobile DeviceCity 311
9/3/20261454 S HARDING AVENorth Lawndale24Completed12 daysInternetCity 311
9/3/202698 S MCCORMICK PL BUSWAYLoop42Completed11 daysInternetCity 311
9/3/20262063 N LOCKWOOD AVEBelmont Cragin36Completed11 daysAlderman's OfficeCity 311
9/3/20262658 N GREENVIEW AVELincoln Park32Completed13 daysInternetCity 311
9/3/20265853 N GLENWOOD AVEEdgewater48Completed6 daysInternetCity 311
9/3/20261951 N SEMINARY AVELincoln Park43Completed13 daysAlderman's OfficeCity 311
9/3/20265551 N CALIFORNIA AVELincoln Square40Completed14 daysPhone CallCity 311
9/3/20263717 W 66TH STWest Lawn23Completed1 dayPhone CallCity 311
9/3/20263700 W CONGRESS PKWYEast Garfield Park28Completed6 daysPhone CallCity 311
9/3/20266242 N KENMORE AVEEdgewater48Completed6 daysPhone CallCity 311
9/3/202612905 S ESCANABA AVEHegewisch10Completed14 daysMobile DeviceCity 311
9/3/20263532 W MONROE STEast Garfield Park28Completed6 daysPhone CallCity 311
9/3/2026544 N HARDING AVEHumboldt Park37Completed14 daysAlderman's OfficeCity 311
9/3/202611244 S CHURCH STMorgan Park19Completed13 daysPhone CallCity 311
9/3/20261117 W 31ST STBridgeport11Completed13 daysAlderman's OfficeCity 311
9/3/20267400 S PAXTON AVESouth Shore7Completed6 daysPhone CallCity 311
9/3/20265417 S SPAULDING AVEGage Park14Completed14 daysInternetCity 311
9/3/20265509 W SUNNYSIDE AVEPortage Park45Completed15 daysInternetCity 311
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