RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4642 locations in the last 30 days (4799 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20254147 N MARMORA AVEPortage Park38Completed13 daysAlderman's OfficeCity 311
7/31/2026440 W 44TH STNew City15Completed13 daysAlderman's OfficeCity 311
7/29/20262425 N CLYBOURN AVELincoln Park32Completed13 daysInternetCity 311
7/31/202510739 S MILLARD AVEMount Greenwood19Completed13 daysInternetCity 311
8/28/20267030 W FOSTER AVENorwood Park41Completed13 daysPhone CallCity 311
9/3/20263234 N DAMEN AVENorth Center32Completed13 daysInternetCity 311
8/20/20263640 N OAK PARK AVEDunning38Completed13 daysPhone CallCity 311
8/29/20265055 N TROY STAlbany Park33Completed13 daysInternetCity 311
8/28/20253514 N BOSWORTH AVELake View47Completed13 daysMobile DeviceCity 311
8/28/20261445 N CALIFORNIA AVEWest Town26Completed13 daysMobile DeviceCity 311
8/6/20255317 W BYRON STPortage Park30Completed13 daysPhone CallCity 311
8/30/20253648 W 70TH PLWest Lawn23Completed13 daysMobile DeviceCity 311
8/21/2025432 W GRANT PLLincoln Park43Completed13 daysAlderman's OfficeCity 311
8/21/2025432 W GRANT PLLincoln Park43Completed13 daysAlderman's OfficeCity 311
8/14/20264819 N WOLCOTT AVELincoln Square47Completed13 daysMobile DeviceCity 311
9/10/20255610 N WESTERN AVEWest Ridge40Completed13 daysInternetCity 311
8/27/20261929 N HARDING AVEHermosa26Completed13 daysMobile DeviceCity 311
7/29/20263141 N NATCHEZ AVEBelmont Cragin36Completed13 daysInternetCity 311
8/5/20261501 W MORSE AVERogers Park49Completed13 daysMobile DeviceCity 311
7/21/20267200 W TOUHY AVEEdison Park41Completed13 daysPhone CallCity 311
8/14/20255039 N WOLCOTT AVELincoln Square40Completed13 daysInternetCity 311
8/12/20262727 N DRAKE AVELogan Square35Completed13 daysInternetCity 311
8/26/20253151 W ARGYLE STAlbany Park33Completed13 daysMobile DeviceCity 311
8/20/20255131 W ROSCOE STPortage Park31Completed13 daysMobile DeviceCity 311
7/22/20254830 N MELVINA AVEJefferson Park45Completed13 daysAlderman's OfficeCity 311
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