RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4698 locations in the last 30 days (4851 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
9/28/20262172 N PARKSIDE AVEBelmont Cragin36Open—InternetCity 311
9/28/20263314 W DICKENS AVELogan Square35Open—Mobile DeviceCity 311
9/28/20264650 N ROCKWELL STLincoln Square47Open—Mobile DeviceCity 311
9/28/20263600 W BELMONT AVEIrving Park30Open—Phone CallCity 311
9/28/20267748 S DREXEL AVEGreater Grand Crossing8Completed8 daysPhone CallCity 311
9/28/20263300 N SPRINGFIELD AVEAvondale30Open—Alderman's OfficeCity 311
9/28/20263400 N HARDING AVEAvondale30Open—Alderman's OfficeCity 311
9/28/20263300 N HARDING AVEAvondale30Open—Phone CallCity 311
9/28/20264340 S ALBANY AVEBrighton Park12Open—Phone CallCity 311
9/28/202610644 S PEORIA STWashington Heights21Open—Phone CallCity 311
9/28/20262715 S NORMAL AVEBridgeport11Open—InternetCity 311
9/28/20262428 N SOUTHPORT AVELincoln Park32Open—InternetCity 311
9/28/20265724 W 63RD PLClearing13Open—InternetCity 311
9/28/20265301 S SAWYER AVEGage Park14Open—Alderman's OfficeCity 311
9/28/20269216 S LOOMIS STWashington Heights21Open—InternetCity 311
9/28/20261773 N CLYBOURN AVELincoln Park43Open—Mobile DeviceCity 311
9/28/20262917 N ASHLAND AVELake View32Open—Phone CallCity 311
9/28/20265428 W SCHOOL STPortage Park30Open—Phone CallCity 311
9/28/20266455 S KARLOV AVEWest Lawn13Open—Phone CallCity 311
9/28/20265357 S HONORE STNew City16Open—Phone CallCity 311
9/28/20263610 W 62ND PLWest Lawn23Open—Phone CallCity 311
9/28/20268344 S COLFAX AVESouth Chicago7Open—InternetCity 311
9/28/20265045 N TROY STAlbany Park33Open—InternetCity 311
9/28/20268443 S COLFAX AVESouth Chicago7Open—InternetCity 311
9/28/20265040 N ALBANY AVEAlbany Park33Open—InternetCity 311
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