RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4415 locations in the last 30 days (4573 reports) · Last sighting 17 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.

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

1,046 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20261218 N CALIFORNIA AVEWest Town26Open—InternetCity 311
9/27/20264818 N BELL AVELincoln Square47Open—Mobile DeviceCity 311
9/27/20262233 W BERWYN AVELincoln Square40Open—Phone CallCity 311
9/27/20263824 W MADISON STWest Garfield Park28Open—Phone CallCity 311
9/27/20262044 W HADDON AVEWest Town1Open—InternetCity 311
9/27/20261749 N MAPLEWOOD AVEWest Town1Open—InternetCity 311
9/27/20263106 N NATCHEZ AVEBelmont Cragin36Open—Phone CallCity 311
9/27/20261732 W SCHOOL STLake View32Open—InternetCity 311
9/27/20263107 N NATCHEZ AVEBelmont Cragin36Open—Phone CallCity 311
9/27/20267228 N BELL AVEWest Ridge49Open—Mobile DeviceCity 311
9/27/20264740 N LAVERGNE AVEPortage Park45Open—InternetCity 311
9/27/20262736 N KENMORE AVELincoln Park43Open—Phone CallCity 311
9/27/202610509 S WENTWORTH AVERoseland9Open—Mobile DeviceCity 311
9/27/20265425 S NORDICA AVEGarfield Ridge23Open—InternetCity 311
9/27/20267419 S MAPLEWOOD AVEChicago Lawn18Open—Phone CallCity 311
9/27/20261718 N CENTRAL PARK AVEHumboldt Park26Open—Mobile DeviceCity 311
9/27/20263105 N OLEANDER AVEDunning29Open—InternetCity 311
9/27/20263119 S HALSTED STBridgeport11Open—Phone CallCity 311
9/27/20262940 W LYNDALE STLogan Square1Open—InternetCity 311
9/27/20261128 W WASHBURNE AVENear West Side28Open—InternetCity 311
9/27/20262514 W BIRCHWOOD AVEWest Ridge50Open—Mobile DeviceCity 311
9/27/20266311 N WINTHROP AVEEdgewater48Open—Phone CallCity 311
9/27/20264017 N KILBOURN AVEIrving Park45Open—Mobile DeviceCity 311
9/27/20264838 W HUTCHINSONPortage Park45Open—Salesforce Mobile AppCity 311
9/27/20264041 W HARRISON STWest Garfield Park24Open—InternetCity 311
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