RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4462 locations in the last 30 days (4625 reports) · Last sighting 18 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/27/20265724 S MOODY AVEGarfield Ridge13Completed2 daysAlderman's OfficeCity 311
9/8/20255724 S KOSTNER AVEWest Elsdon13Completed11 daysAlderman's OfficeCity 311
6/10/20265724 S KEDZIE AVEGage Park14Completed0 daysMobile DeviceCity 311
10/27/20255724 N NATOMA AVENorwood Park41Completed2 daysPhone CallCity 311
9/2/20265724 N MERRIMAC AVENorwood Park45Completed15 daysPhone CallCity 311
8/7/20265724 N MARMORA AVEJefferson Park45Completed3 daysPhone CallCity 311
8/8/20255724 N MARMORA AVEJefferson Park45Completed11 daysInternetCity 311
8/28/20265723 W MELROSE STPortage Park30Completed17 daysPhone CallCity 311
3/21/20265723 N TALMAN AVEWest Ridge40Completed2 daysMobile DeviceCity 311
2/19/20265723 N OSAGE AVENorwood Park41Completed1 dayInternetCity 311
7/14/20265723 N MENARD AVEJefferson Park45Completed14 daysInternetCity 311
4/2/20265723 N MENARD AVEJefferson Park45Completed1 dayInternetCity 311
8/3/20265722 W GRACE STPortage Park38Completed18 daysInternetCity 311
9/4/20265722 S TROY STGage Park14Completed17 daysPhone CallCity 311
8/6/20255722 S RACINE AVEWest Englewood16Completed7 daysInternetCity 311
10/8/20255722 S RACINE AVEWest Englewood16Completed2 daysInternetCity 311
5/19/20265722 S NEW ENGLAND AVEGarfield Ridge13Completed2 daysMobile DeviceCity 311
5/4/20265722 S NARRAGANSETT AVEGarfield Ridge13Completed3 daysInternetCity 311
4/14/20265722 S NARRAGANSETT AVEGarfield Ridge13Completed1 dayInternetCity 311
8/15/20265722 S LOWE AVEEnglewood16Completed10 daysMobile DeviceCity 311
10/8/20265722 S LOWE AVEEnglewood16Open—Mobile DeviceCity 311
1/6/20265722 N KIMBALL AVENorth Park39Completed1 dayPhone CallCity 311
5/31/20265721 W CORNELIA AVEPortage Park30Completed3 daysMobile DeviceCity 311
11/12/20255721 W 55TH STGarfield Ridge13Completed1 dayPhone CallCity 311
4/6/20265721 S NAGLE AVEGarfield Ridge13Completed1 dayInternetCity 311
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