RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4307 locations in the last 30 days (4497 reports) · Last sighting 13 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/22/20265100 W ADDISON STPortage Park30Completed4 daysPhone CallCity 311
9/14/20265100 W ADDISON STPortage Park30Completed14 daysAlderman's OfficeCity 311
7/16/20265100 S WOODLAWN AVEHyde Park5Completed12 daysPhone CallCity 311
9/2/20255100 S PARKSIDE AVEGarfield Ridge23Completed13 daysInternetCity 311
6/26/20265100 S NARRAGANSETT AVEGarfield Ridge23Completed4 daysPhone CallCity 311
6/2/20265100 S MULLIGAN AVEGarfield Ridge23Completed6 daysAlderman's OfficeCity 311
8/12/20265100 S MULLIGAN AVEGarfield Ridge23Completed12 daysPhone CallCity 311
10/26/20265100 S MICHIGAN AVEWashington Park3Open—InternetCity 311
2/19/20265100 S MERRIMAC AVEGarfield Ridge23Completed1 dayInternetCity 311
10/27/20265100 S MAPLEWOOD AVEGage Park14Open—Phone CallCity 311
6/1/20265100 S LUNA AVEGarfield Ridge23Completed1 dayPhone CallCity 311
9/8/20255100 S LUNA AVEGarfield Ridge23Completed10 daysAlderman's OfficeCity 311
12/9/20255100 S LACROSSE AVEGarfield Ridge23Completed1 dayAlderman's OfficeCity 311
8/14/20255100 S LA CROSSE AVEGarfield Ridge23Completed11 daysPhone CallCity 311
8/24/20265100 S LA CROSSE AVEGarfield Ridge23Completed8 daysMobile DeviceCity 311
6/17/20265100 S KENWOOD AVEHyde Park4Completed1 dayPhone CallCity 311
10/22/20255100 S KEELER AVEArcher Heights23Completed5 daysPhone CallCity 311
8/4/20265100 S KEATING AVEGarfield Ridge23Completed10 daysInternetCity 311
5/28/20265100 S HALSTED STNew City20Completed1 dayPhone CallCity 311
9/3/20255100 S DORCHESTER AVEHyde Park4Completed6 daysInternetCity 311
9/3/20255100 S CENTRAL AVEGarfield Ridge23Completed12 daysPhone CallCity 311
5/19/20265100 S CENTRAL AVEGarfield Ridge23Completed3 daysPhone CallCity 311
10/28/20255100 S CENTRAL AVEGarfield Ridge23Completed2 daysPhone CallCity 311
5/25/20265100 N WOLCOTT AVELincoln Square40Completed7 daysInternetCity 311
6/14/20265100 N WOLCOTT AVELincoln Square40Completed3 daysPhone CallCity 311
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