RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4429 locations in the last 30 days (4594 reports) · Last sighting 19 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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/22/20266930 W SUMMERDALE AVENorwood Park41Completed12 daysPhone CallCity 311
7/22/20263029 N SPAULDING AVEAvondale35Completed14 daysAlderman's OfficeCity 311
7/22/2026505 W GRANT PLLincoln Park43Completed12 daysMobile DeviceCity 311
7/22/20265117 N WOLCOTT AVELincoln Square40Completed12 daysMobile DeviceCity 311
7/22/20263229 N NEWLAND AVEDunning36Completed12 daysPhone CallCity 311
7/22/20263032 S KOLIN AVESouth Lawndale22Completed8 daysAlderman's OfficeCity 311
7/22/20263605 W 61ST PLWest Lawn23Completed9 daysPhone CallCity 311
7/22/20264821 N HOYNE AVELincoln Square47Completed13 daysPhone CallCity 311
7/22/20266501 W ARCHER AVEGarfield Ridge13Completed8 daysInternetCity 311
7/22/20264943 N AUSTIN AVEJefferson Park45Completed9 daysPhone CallCity 311
7/22/20263359 W LEMOYNE STHumboldt Park26Completed8 daysAlderman's OfficeCity 311
7/22/20263137 W JARVIS AVEWest Ridge50Completed9 daysInternetCity 311
7/22/20262913 S SHIELDS AVEArmour Square11Completed2 daysInternetCity 311
7/22/20264246 S MAPLEWOOD AVEBrighton Park12Completed7 daysPhone CallCity 311
7/22/20261640 S ST LOUIS AVENorth Lawndale24Completed5 daysMobile DeviceCity 311
7/22/20263553 W LYNDALE STLogan Square35Completed14 daysInternetCity 311
7/22/20264740 W 51ST STGarfield Ridge14Completed5 daysInternetCity 311
7/22/20262007 W ADDISON STNorth Center47Completed13 daysInternetCity 311
7/22/20262340 S ALBANY AVESouth Lawndale25Completed6 daysPhone CallCity 311
7/22/20266014 W 59TH STGarfield Ridge13Completed8 daysPhone CallCity 311
7/22/20263216 W AUGUSTA BLVDHumboldt Park26Completed8 daysAlderman's OfficeCity 311
7/22/20265230 S CORNELL AVEHyde Park5Completed2 daysPhone CallCity 311
7/22/20265046 W SUNNYSIDE AVEPortage Park45Completed9 daysPhone CallCity 311
7/22/20265268 S KNOX AVEGarfield Ridge23Completed9 daysPhone CallCity 311
7/22/202611140 S TRUMBULL AVEMount Greenwood19Completed2 daysPhone CallCity 311
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