RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4255 locations in the last 30 days (4437 reports) · Last sighting 24 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

58,530 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/20259020 S HARPER AVECalumet Heights8Completed8 daysPhone CallCity 311
8/13/20256559 S DAMEN AVEWest Englewood16Completed8 daysPhone CallCity 311
8/4/20262738 W BALMORAL AVELincoln Square40Completed8 daysMobile DeviceCity 311
7/30/20254425 W ROSCOE STIrving Park30Completed8 daysPhone CallCity 311
7/30/20258304 W ADDISON STDunning38Completed8 daysPhone CallCity 311
8/21/20255605 S NAGLE AVEGarfield Ridge13Completed8 daysInternetCity 311
9/8/20265819 S KOLMAR AVEWest Elsdon13Completed8 daysPhone CallCity 311
8/21/20255606 S NARRAGANSETT AVEGarfield Ridge13Completed8 daysInternetCity 311
9/23/20256827 S MARSHFIELD AVEWest Englewood17Completed8 daysPhone CallCity 311
8/21/20255616 S NARRAGANSETT AVEGarfield Ridge13Completed8 daysInternetCity 311
7/30/20267412 N OSCEOLA AVEEdison Park41Completed8 daysPhone CallCity 311
7/5/20262657 W HADDON AVEWest Town36Completed8 daysMobile DeviceCity 311
7/31/20256259 W HENDERSON STDunning30Completed8 daysAlderman's OfficeCity 311
7/30/20261117 W PATTERSON AVELake View44Completed8 daysMobile DeviceCity 311
8/17/20255851 N MARKHAM AVEJefferson Park45Completed8 daysMobile DeviceCity 311
7/28/2026847 N KOLIN AVEHumboldt Park37Completed8 daysPhone CallCity 311
9/10/20251927 W RACE AVEWest Town36Completed8 daysInternetCity 311
9/29/20252112 N BINGHAM STLogan Square1Completed8 daysMobile DeviceCity 311
8/21/20255607 S NAGLE AVEGarfield Ridge13Completed8 daysInternetCity 311
9/8/20255106 S EMERALD AVENew City20Completed8 daysInternetCity 311
9/14/20265406 S LUNA AVEGarfield Ridge23Completed8 daysPhone CallCity 311
7/13/20264023 N SAWYER AVEIrving Park33Completed8 daysMobile DeviceCity 311
8/21/20255617 S NAGLE AVEGarfield Ridge13Completed8 daysInternetCity 311
9/24/20265145 N CENTRAL PARK AVENorth Park39Completed8 daysMobile DeviceCity 311
7/30/20253706 N SAWYER AVEIrving Park33Completed8 daysInternetCity 311
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