RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4692 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.

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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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20262023 W CORTLAND STLogan Square32Open—Mobile DeviceCity 311
10/10/20264332 N SACRAMENTO AVEIrving Park33Open—Mobile DeviceCity 311
10/10/20264345 N WHIPPLE STIrving Park33Open—Mobile DeviceCity 311
10/10/20264542 N ASHLAND AVEUptown47Open—InternetCity 311
10/10/20261628 W CERMAK RDLower West Side25Open—InternetCity 311
10/10/20265322 W VAN BUREN STAustin29Open—Mobile DeviceCity 311
10/10/20261636 W CERMAK RDLower West Side25Open—InternetCity 311
10/10/20261638 W CERMAK RDLower West Side25Open—InternetCity 311
10/10/20263411 N RUTHERFORD AVEDunning38Open—Phone CallCity 311
10/10/20267013 W 63RD PLClearing13Open—InternetCity 311
10/10/20262150 W IRVING PARK RDNorth Center47Open—Phone CallCity 311
10/10/20266151 W BARRY AVEBelmont Cragin30Open—InternetCity 311
10/10/20264637 W WARWICK AVEPortage Park30Open—Mobile DeviceCity 311
10/10/2026434 W BRIAR PLLake View44Open—InternetCity 311
10/10/20262058 N BISSELL STLincoln Park43Open—Mobile DeviceCity 311
10/10/20267035 S FAIRFIELD AVEChicago Lawn17Open—InternetCity 311
10/10/20261117 W PATTERSON AVELake View44Open—Mobile DeviceCity 311
10/10/20264106 N KEDZIE AVEIrving Park33Open—InternetCity 311
10/10/20265616 N MANGO AVEJefferson Park45Open—InternetCity 311
10/10/20262727 N HAMPDEN CTLincoln Park43Open—Mobile DeviceCity 311
10/10/20264126 N KENMORE AVEUptown46Open—Mobile DeviceCity 311
10/10/2026838 N TRUMBULL AVEHumboldt Park27Open—InternetCity 311
10/9/20265026 S LECLAIRE AVEGarfield Ridge23Open—InternetCity 311
10/9/20263140 S WALLACE STBridgeport11Open—InternetCity 311
10/9/20263540 N LAKEWOOD AVELake View44Open—InternetCity 311
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