RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4607 locations in the last 30 days (4760 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/19/2026822 N LOREL AVEAustin37Completed1 dayPhone CallCity 311
8/19/20263235 W OLIVE AVENorth Park39Completed1 dayPhone CallCity 311
8/19/20266006 N MARMORA AVEJefferson Park39Completed1 dayPhone CallCity 311
8/19/20262241 N WAYNE AVELincoln Park2Completed1 dayPhone CallCity 311
8/19/20261630 N LASALLE DRLincoln Park2Completed1 dayPhone CallCity 311
8/19/20264850 W ROSCOE STPortage Park31Completed1 dayPhone CallCity 311
8/19/20265110 N LOTUS AVEJefferson Park45Completed13 daysPhone CallCity 311
8/19/20265012 W WOLFRAM STBelmont Cragin31Completed1 dayPhone CallCity 311
8/19/20261337 W HENDERSON STLake View44Completed12 daysAlderman's OfficeCity 311
8/19/202610909 S CENTRAL PARK AVEMount Greenwood19Completed7 daysMobile DeviceCity 311
8/19/20262511 S KEELER AVESouth Lawndale22Completed9 daysPhone CallCity 311
8/19/20268410 S PEORIA STAuburn Gresham17Completed15 daysPhone CallCity 311
8/19/20263200 N PARIS AVEDunning38Completed12 daysPhone CallCity 311
8/19/20261415 W 72ND STWest Englewood17Completed9 daysPhone CallCity 311
8/19/20263840 N OAK PARK AVEDunning38Completed2 daysPhone CallCity 311
8/19/20261275 W FLOURNOY STNear West Side34Completed5 daysMobile DeviceCity 311
8/19/20265429 S NAGLE AVEGarfield Ridge23Completed12 daysMobile DeviceCity 311
8/19/20265620 S KENNETH AVEWest Elsdon13Completed9 daysInternetCity 311
8/19/20261147 W ERIE STWest Town27Completed12 daysInternetCity 311
8/19/20265839 S KOLMAR AVEWest Elsdon13Completed9 daysInternetCity 311
8/19/20266059 S MCVICKER AVEClearing13Completed9 daysInternetCity 311
8/19/20266201 S KILPATRICK AVEClearing13Completed8 daysInternetCity 311
8/19/20265714 W WARWICK AVEPortage Park38Completed6 daysMobile DeviceCity 311
8/19/20266200 S KEATING AVEClearing13Completed8 daysInternetCity 311
8/19/20264039 N PONTIAC AVEDunning38Completed12 daysPhone CallCity 311
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