RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4700 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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/9/20262041 W BERWYN AVELincoln Square40Completed14 daysInternetCity 311
7/22/20263029 N SPAULDING AVEAvondale35Completed14 daysAlderman's OfficeCity 311
9/3/20264425 N BERNARD STAlbany Park33Completed14 daysInternetCity 311
8/12/20264433 N ST LOUIS AVEAlbany Park33Completed14 daysMobile DeviceCity 311
9/14/20261648 W WRIGHTWOOD AVELincoln Park32Completed14 daysPhone CallCity 311
7/30/20252405 W IOWA STWest Town36Completed14 daysInternetCity 311
8/20/20264014 N BELL AVENorth Center47Completed14 daysMobile DeviceCity 311
8/17/20265520 N LINDER AVEJefferson Park45Completed14 daysPhone CallCity 311
8/6/20265100 W CHICAGO AVEAustin37Completed14 daysAlderman's OfficeCity 311
9/9/20266845 S MICHIGAN AVEGreater Grand Crossing6Completed14 daysPhone CallCity 311
8/25/20252442 W WALTON STWest Town36Completed14 daysMobile DeviceCity 311
9/8/20261436 W IRVING PARK RDLake View47Completed14 daysMobile DeviceCity 311
9/3/20262334 S HOYNE AVELower West Side25Completed14 daysMobile DeviceCity 311
8/4/20253845 N SPRINGFIELD AVEIrving Park30Completed14 daysInternetCity 311
8/13/20264034 N LOWELL AVEIrving Park45Completed14 daysInternetCity 311
9/14/20262433 W CUYLER AVENorth Center47Completed14 daysInternetCity 311
8/25/20264800 W EDDY STPortage Park31Completed14 daysAlderman's OfficeCity 311
9/2/2026235 W 24TH STArmour Square11Completed14 daysAlderman's OfficeCity 311
9/10/20262737 W FARGO AVEWest Ridge50Completed14 daysPhone CallCity 311
8/10/20266351 S KILPATRICK AVEClearing13Completed14 daysInternetCity 311
8/25/20262548 W MORSE AVEWest Ridge40Completed14 daysInternetCity 311
8/18/20261462 W LELAND AVEUptown46Completed14 daysInternetCity 311
8/21/2025637 W BELMONT AVELake View44Completed14 daysAlderman's OfficeCity 311
8/15/20251112 W 115TH STMorgan Park21Completed14 daysInternetCity 311
7/16/20266237 W WAVELAND AVEDunning38Completed14 daysMobile DeviceCity 311
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