RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4488 locations in the last 30 days (4668 reports) · Last sighting 20 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

1,116 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/20/20264152 N LEAMINGTON AVEPortage Park38Open—InternetCity 311
10/20/20261515 N CLEVELAND AVENear North Side2Completed3 daysInternetCity 311
10/20/20261517 N CLEVELAND AVENear North Side2Completed3 daysInternetCity 311
10/20/20261519 N CLEVELAND AVENear North Side2Completed3 daysInternetCity 311
10/20/20262236 W ARGYLE STLincoln Square40Open—InternetCity 311
10/20/20262819 N MONT CLARE AVEMontclare29Completed3 daysPhone CallCity 311
10/20/2026201 E OHIO STNear North Side2Completed3 daysInternetCity 311
10/20/20268626 S UNION AVEAuburn Gresham21Completed3 daysPhone CallCity 311
10/20/20261340 W GRACE STLake View44Open—InternetCity 311
10/20/20264347 W SHAKESPEARE AVEHermosa35Open—Mobile DeviceCity 311
10/20/20262006 W BIRCHWOOD AVERogers Park49Open—Mobile DeviceCity 311
10/20/20261723 N STOCKTON DRLincoln Park43Open—InternetCity 311
10/20/20263005 N KOLMAR AVEHermosa31Open—InternetCity 311
10/20/2026535 W 61ST PLEnglewood20Open—InternetCity 311
10/20/2026533 W 61ST PLEnglewood20Open—InternetCity 311
10/20/20261429 E 72ND STSouth Shore8Open—InternetCity 311
10/20/20262815 N MAJOR AVEBelmont Cragin30Open—Mobile DeviceCity 311
10/20/20264044 N TROY STIrving Park33Open—Mobile DeviceCity 311
10/20/202610525 S EBERHART AVERoseland9Open—Phone CallCity 311
10/20/20261024 N PARKSIDE AVEAustin29Open—Phone CallCity 311
10/20/20263900 W DIVISION STHumboldt Park37Open—Phone CallCity 311
10/20/20261200 N SPRINGFIELD AVEHumboldt Park37Open—Phone CallCity 311
10/20/20263907 N TRIPP AVEIrving Park30Open—Mobile DeviceCity 311
10/20/20263931 W 84TH PLAshburn18Open—Phone CallCity 311
10/20/20267823 S CHAMPLAIN AVEGreater Grand Crossing6Open—InternetCity 311
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