RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4563 locations in the last 30 days (4718 reports) · Last sighting 15 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
8/28/20253201 S WOLCOTT AVELower West Side12Completed14 daysInternetCity 311
9/2/20261523 W ADDISON STLake View47Completed14 daysInternetCity 311
8/26/20258300 S BUFFALO AVESouth Chicago10Completed14 daysAlderman's OfficeCity 311
8/3/20263344 W BEACH AVEHumboldt Park26Completed14 daysInternetCity 311
9/3/20265229 W CARMEN AVEJefferson Park45Completed14 daysInternetCity 311
7/21/20261920 W CUYLER AVENorth Center47Completed14 daysMobile DeviceCity 311
8/31/20266240 W 59TH STGarfield Ridge13Completed14 daysMobile DeviceCity 311
8/3/20263328 W BEACH AVEHumboldt Park26Completed14 daysInternetCity 311
9/2/20264704 N LEAVITT STLincoln Square47Completed14 daysMobile DeviceCity 311
9/3/2026733 N KEDZIE AVEHumboldt Park27Completed14 daysInternetCity 311
8/4/20254853 W GRACE STPortage Park30Completed14 daysInternetCity 311
7/15/20265229 W CORNELIA AVEPortage Park31Completed14 daysAlderman's OfficeCity 311
9/22/20251741 W GARFIELD BLVDWest Englewood16Completed14 daysPhone CallCity 311
7/14/20267016 N TAHOMA AVEForest Glen45Completed14 daysInternetCity 311
8/31/20262723 N SOUTHPORT AVELincoln Park32Completed14 daysMobile DeviceCity 311
8/26/20265002 S LAWLER AVEGarfield Ridge23Completed14 daysPhone CallCity 311
9/1/20263318 S PARNELL AVEBridgeport11Completed14 daysAlderman's OfficeCity 311
8/10/20265810 S KILBOURN AVEWest Elsdon13Completed14 daysAlderman's OfficeCity 311
8/10/20264415 N FRANCISCO AVEAlbany Park33Completed14 daysInternetCity 311
8/22/20251337 W HENDERSON STLake View44Completed14 daysPhone CallCity 311
9/9/20265448 W HIGGINS AVEJefferson Park45Completed14 daysMobile DeviceCity 311
8/31/20268026 S FAIRFIELD AVEAshburn18Completed14 daysInternetCity 311
8/25/20267131 N MERRIMAC AVEForest Glen45Completed14 daysInternetCity 311
8/26/20261515 N AVERS AVEHumboldt Park26Completed14 daysAlderman's OfficeCity 311
8/31/20264354 W MARQUETTE RDWest Lawn13Completed14 daysPhone CallCity 311
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