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.

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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/20255647 W BERENICE AVEPortage Park38Completed10 daysMobile DeviceCity 311
8/25/202610460 S EMERALD AVERoseland21Completed10 daysPhone CallCity 311
9/2/20252953 W WARREN BLVDEast Garfield Park27Completed10 daysInternetCity 311
7/11/20261109 W 71ST STEnglewood17Completed10 daysInternetCity 311
8/17/20261643 S MILLARD AVENorth Lawndale24Completed10 daysAlderman's OfficeCity 311
8/8/20266539 N CALIFORNIA AVEWest Ridge50Completed10 daysPhone CallCity 311
8/4/20254633 N KARLOV AVEAlbany Park39Completed10 daysInternetCity 311
9/26/20251745 W ROSCOE STLake View32Completed10 daysInternetCity 311
8/19/20253049 N KENNETH AVEHermosa31Completed10 daysAlderman's OfficeCity 311
9/14/20254837 N CENTRAL AVEJefferson Park45Completed10 daysMobile DeviceCity 311
8/4/20253019 N BROADWAYLake View44Completed10 daysPhone CallCity 311
8/15/20262454 N ASHLAND AVELincoln Park32Completed10 daysInternetCity 311
9/8/20257650 N BOSWORTH AVERogers Park49Completed10 daysPhone CallCity 311
9/15/20252206 W EASTWOOD AVELincoln Square47Completed10 daysMobile DeviceCity 311
9/6/20265020 S LA CROSSE AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
7/10/20266000 S PAULINA STWest Englewood15Completed10 daysPhone CallCity 311
7/10/20261549 W BARRY AVELake View32Completed10 daysMobile DeviceCity 311
7/24/20267017 W SUMMERDALE AVENorwood Park41Completed10 daysMobile DeviceCity 311
7/11/20265379 N LYNCH AVEJefferson Park45Completed10 daysInternetCity 311
7/17/20264141 S PULASKI RDArcher Heights14Completed10 daysInternetCity 311
7/17/20264201 S PULASKI RDArcher Heights14Completed10 daysInternetCity 311
9/15/20254309 N MASON AVEPortage Park38Completed10 daysInternetCity 311
9/6/20253711 N KIMBALL AVEIrving Park35Completed10 daysMobile DeviceCity 311
10/5/20268001 S HERMITAGE AVEAuburn Gresham17Completed10 daysMobile DeviceCity 311
7/13/20261234 W 98TH STWashington Heights21Completed10 daysPhone CallCity 311
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