RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4246 locations in the last 30 days (4399 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/2/20256154 S KOLMAR AVEWest Lawn13Completed10 daysMobile DeviceCity 311
7/24/20265100 W FLETCHER STBelmont Cragin31Completed10 daysPhone CallCity 311
9/9/20253431 W CORTLAND STLogan Square26Completed10 daysMobile DeviceCity 311
8/7/20268908 S UNION AVEAuburn Gresham21Completed10 daysInternetCity 311
9/19/20254455 N LARAMIE AVEPortage Park45Completed10 daysPhone CallCity 311
9/29/20267931 S HERMITAGE AVEAuburn Gresham17Completed10 daysPhone CallCity 311
10/11/20253913 N KIMBALL AVEIrving Park33Completed10 daysPhone CallCity 311
7/27/20263715 N RICHMOND STIrving Park35Completed10 daysInternetCity 311
8/26/2025832 W SHERIDAN RDLake View46Completed10 daysInternetCity 311
10/6/20262615 N LARAMIE AVEBelmont Cragin31Completed10 daysAlderman's OfficeCity 311
8/5/20252454 N SEMINARY AVELincoln Park43Completed10 daysMobile DeviceCity 311
8/16/20265158 W SCHOOL STPortage Park31Completed10 daysInternetCity 311
9/28/20265852 W 63RD PLClearing13Completed10 daysInternetCity 311
10/4/20265507 S EVERETT AVEHyde Park5Completed10 daysInternetCity 311
8/4/20251910 N CALIFORNIA AVELogan Square1Completed10 daysMobile DeviceCity 311
8/21/2026100 E 71ST STGreater Grand Crossing6Completed10 daysPhone CallCity 311
9/15/20262738 S SPRINGFIELD AVESouth Lawndale22Completed10 daysPhone CallCity 311
8/21/20264905 W PENSACOLA AVEPortage Park45Completed10 daysInternetCity 311
8/19/20255255 W BARRY AVEBelmont Cragin31Completed10 daysInternetCity 311
9/6/20252051 W MONTROSE AVENorth Center47Completed10 daysMobile DeviceCity 311
9/1/20262215 W CERMAK RDLower West Side25Completed10 daysPhone CallCity 311
8/3/20263306 N OAKLEY AVENorth Center32Completed10 daysInternetCity 311
7/27/20255700 W SCHOOL STPortage Park30Completed10 daysPhone CallCity 311
9/9/20252148 W EASTWOOD AVELincoln Square47Completed10 daysInternetCity 311
9/7/20255011 N MOODY AVEJefferson Park45Completed10 daysInternetCity 311
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