RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4531 locations in the last 30 days (4679 reports) · Last sighting yesterday

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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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20262305 N MAJOR AVEBelmont Cragin36Open—Phone CallCity 311
10/2/20262055 W BALMORAL AVELincoln Square40Open—InternetCity 311
10/2/20264422 N PARKSIDE AVEPortage Park38Open—InternetCity 311
10/2/20264732 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Open—Alderman's OfficeCity 311
10/2/20261834 W WASHINGTON BLVDNear West Side27Open—Phone CallCity 311
10/2/2026917 N LEAMINGTON AVEAustin37Open—Phone CallCity 311
10/2/2026808 N LAKE SHORE DRNear North Side2Open—InternetCity 311
10/2/20266119 S KILPATRICK AVEClearing13Open—Phone CallCity 311
10/2/20265357 S NATCHEZ AVEGarfield Ridge23Open—Alderman's OfficeCity 311
10/2/20265800 W MELROSE STPortage Park30Open—Phone CallCity 311
10/2/20264870 W BERWYN AVEForest Glen39Open—Alderman's OfficeCity 311
10/2/20265026 N KIMBALL AVENorth Park39Open—InternetCity 311
10/2/20261849 N MAUD AVELincoln Park43Open—Phone CallCity 311
10/2/20263433 W DICKENS AVELogan Square26Open—Phone CallCity 311
10/2/20263067 S BONFIELD STBridgeport11Open—Phone CallCity 311
10/2/20265252 S WASHTENAW AVEGage Park14Open—Phone CallCity 311
10/2/20264443 W MONTROSE AVEIrving Park39Open—Phone CallCity 311
10/2/20265359 W FULLERTON AVEBelmont Cragin36Open—Phone CallCity 311
10/2/20263268 W FULLERTON AVELogan Square35Open—Alderman's OfficeCity 311
10/2/20261739 N ROCKWELL STWest Town1Open—InternetCity 311
10/2/20265333 W FULLERTON AVEBelmont Cragin36Open—Phone CallCity 311
10/2/20265451 N LINDER AVEJefferson Park45Open—Phone CallCity 311
10/2/20263634 W MONTROSE AVEAlbany Park33Open—InternetCity 311
10/2/20261751 E 85TH STAvalon Park8Open—Phone CallCity 311
10/2/20266042 S NASHVILLE AVEClearing13Open—InternetCity 311
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