RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4726 locations in the last 30 days (4876 reports) · Last sighting 13 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/16/20265218 S MOZART STGage Park14Completed10 daysInternetCity 311
8/16/20261831 N FAIRFIELD AVELogan Square1Completed10 daysInternetCity 311
8/16/2026932 N CALIFORNIA AVEWest Town26Completed9 daysMobile DeviceCity 311
8/16/20267346 S KINGSTON AVESouth Shore7Completed16 daysMobile DeviceCity 311
8/16/20263122 N SEMINARY AVELake View44Completed11 daysMobile DeviceCity 311
8/16/20265440 S LONG AVEGarfield Ridge23Completed12 daysPhone CallCity 311
8/16/2026906 W BARRY AVELake View44Completed11 daysInternetCity 311
8/16/20265454 N NORDICA AVENorwood Park41Completed10 daysMobile DeviceCity 311
8/16/20262752 W GIDDINGS STLincoln Square40Completed12 daysMobile DeviceCity 311
8/16/20263312 N OAKLEY AVENorth Center32Completed15 daysInternetCity 311
8/16/20261524 W 110TH STMorgan Park21Completed4 daysMobile DeviceCity 311
8/16/202610719 S MILLARD AVEMount Greenwood19Completed10 daysInternetCity 311
8/16/20263364 S HALSTED STBridgeport11Completed12 daysMobile DeviceCity 311
8/16/20266630 S MOZART STChicago Lawn15Completed1 dayMobile DeviceCity 311
8/16/20263539 W 84TH PLAshburn18Completed11 daysPhone CallCity 311
8/16/2026619 S LOOMIS STNear West Side34Completed1 dayPhone CallCity 311
8/16/20262357 N DAMEN AVELogan Square32Completed15 daysMobile DeviceCity 311
8/16/20264957 N CHRISTIANA AVEAlbany Park33Completed11 daysMobile DeviceCity 311
8/16/2026400 E WATERSIDE DRLoop42Completed1 dayMobile DeviceCity 311
8/16/2026828 E 42ND STOakland4Completed9 daysInternetCity 311
8/16/20263310 N OKETO AVEDunning38Completed15 daysInternetCity 311
8/16/20264219 N KILPATRICK AVEPortage Park45Completed15 daysInternetCity 311
8/16/20263310 S CARPENTER STBridgeport11Completed2 daysMobile DeviceCity 311
8/16/20265401 S RICHMOND STGage Park14Completed10 daysMobile DeviceCity 311
8/16/2026852 W FULTON MARKETNear West Side27Completed15 daysInternetCity 311
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