RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4550 locations in the last 30 days (4705 reports) · Last sighting yesterday

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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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/28/20262334 W HARRISON STNear West Side28Completed7 daysMobile DeviceCity 311
8/28/20263242 N NATCHEZ AVEDunning38Completed14 daysMobile DeviceCity 311
8/28/20263443 W 83RD PLAshburn18Completed7 daysPhone CallCity 311
8/28/20265138 S RIDGEWAY AVEWest Elsdon23Completed12 daysPhone CallCity 311
8/28/20268411 S MANISTEE AVESouth Chicago7Completed4 daysPhone CallCity 311
8/28/20262814 N LAWNDALEAvondale35Completed7 daysSalesforce Mobile AppCity 311
8/28/202610521 S WALLACE STRoseland21Completed7 daysPhone CallCity 311
8/28/20265520 N LINDER AVEJefferson Park45Completed3 daysPhone CallCity 311
8/28/202611221 S ST LOUIS AVEMount Greenwood19Completed6 daysAlderman's OfficeCity 311
8/28/20262333 N TALMAN AVELogan Square1Completed3 daysPhone CallCity 311
8/28/20263661 N ELSTON AVEIrving Park33Completed14 daysInternetCity 311
8/28/20264153 W NELSON STAvondale31Completed3 daysPhone CallCity 311
8/28/20264125 N CUMBERLAND AVEDunning38Completed12 daysPhone CallCity 311
8/28/20265939 W RICE STAustin29Completed7 daysPhone CallCity 311
8/28/20263751 W EASTWOOD AVEAlbany Park33Completed12 daysPhone CallCity 311
8/28/20266633 N NEWGARD AVERogers Park49Completed3 daysPhone CallCity 311
8/28/20267030 W FOSTER AVENorwood Park41Completed13 daysPhone CallCity 311
8/28/20263753 W EASTWOOD AVEAlbany Park33Completed12 daysPhone CallCity 311
8/28/20263747 W EASTWOOD AVEAlbany Park33Completed12 daysPhone CallCity 311
8/28/20266245 N NORTHWEST HWYNorwood Park41Completed13 daysPhone CallCity 311
8/28/20266511 N ASHLAND AVERogers Park49Completed3 daysPhone CallCity 311
8/28/20263238 W OLIVE AVENorth Park39Completed14 daysPhone CallCity 311
8/28/20265140 N KOLMAR AVEAlbany Park39Completed12 daysMobile DeviceCity 311
8/28/20264975 N KILPATRICK AVEAlbany Park39Completed14 daysPhone CallCity 311
8/28/20266316 W LAWRENCE AVEPortage Park41Completed3 daysPhone CallCity 311
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