RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4534 locations in the last 30 days (4688 reports) · Last sighting 2 days 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/20256751 S OAKLEY AVEChicago Lawn16Completed7 daysInternetCity 311
8/14/20252614 S FARRELL STBridgeport11Completed1 dayAlderman's OfficeCity 311
8/14/20252628 S HILLOCK AVEBridgeport11Completed1 dayAlderman's OfficeCity 311
8/14/20252309 N LATROBE AVEBelmont Cragin31Completed13 daysPhone CallCity 311
8/14/20252951 S ARCHER AVEBridgeport11Completed1 dayInternetCity 311
8/14/20253907 N CHRISTIANA AVEIrving Park33Completed11 daysPhone CallCity 311
8/14/20252536 W 109TH PLMorgan Park19Completed14 daysAlderman's OfficeCity 311
8/14/20253030 W LEXINGTON STEast Garfield Park28Completed12 daysAlderman's OfficeCity 311
8/14/20255039 N WOLCOTT AVELincoln Square40Completed13 daysInternetCity 311
8/14/20251243 W COLUMBIA AVERogers Park49Completed12 daysPhone CallCity 311
8/14/2025349 W 28TH PLArmour Square11Completed1 dayAlderman's OfficeCity 311
8/14/20257436 W ADDISON STDunning38Completed7 daysAlderman's OfficeCity 311
8/14/20252252 N KIMBALL AVELogan Square35Completed6 daysPhone CallCity 311
8/14/20253522 W MEDILL AVELogan Square35Completed11 daysPhone CallCity 311
8/14/20255301 S CALIFORNIA AVEGage Park14Completed8 daysPhone CallCity 311
8/14/20253042 N KILBOURN AVEHermosa31Completed12 daysPhone CallCity 311
8/14/2025735 N SPAULDING AVEHumboldt Park27Completed12 daysPhone CallCity 311
8/14/20253117 N ST LOUIS AVEAvondale35Completed11 daysPhone CallCity 311
8/14/20255521 S KENNETH AVEWest Elsdon13Completed8 daysAlderman's OfficeCity 311
8/14/20255753 W PATTERSON AVEPortage Park38Completed8 daysInternetCity 311
8/14/20254511 S KING M L JR DRGrand Boulevard3Completed1 dayPhone CallCity 311
8/14/20252029 W LAWRENCE AVELincoln Square47Completed12 daysPhone CallCity 311
8/14/20256449 S NORMANDY AVEClearing13Completed11 daysInternetCity 311
8/14/20256455 S NORMANDY AVEClearing13Completed11 daysInternetCity 311
8/14/20256477 S NORMANDY AVEClearing13Completed11 daysInternetCity 311
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