RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4528 locations in the last 30 days (4676 reports) · Last sighting 2 days 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20261813 W NORWOOD STWest Ridge40Open—Phone CallCity 311
10/2/20267845 S MARYLAND AVEGreater Grand Crossing8Open—Phone CallCity 311
10/2/2026913 N LEAMINGTON AVEAustin37Open—Phone CallCity 311
10/2/20265730 S MENARD AVEGarfield Ridge13Open—InternetCity 311
10/2/20264741 W ADDISON STPortage Park30Open—Mobile DeviceCity 311
10/2/20265733 S MONITOR AVEGarfield Ridge13Open—InternetCity 311
10/2/20263054 N RACINE AVELake View32Open—Phone CallCity 311
10/2/20267758 S DAMEN AVEAuburn Gresham18Open—Phone CallCity 311
10/2/20267908 S LAFLIN STAuburn Gresham17Open—Phone CallCity 311
10/2/20265846 N ST LOUIS AVENorth Park39Open—InternetCity 311
10/2/20264219 N MARMORA AVEPortage Park38Open—InternetCity 311
10/1/20264704 W PARKER AVEBelmont Cragin31Open—Mobile DeviceCity 311
10/1/2026651 W BUCKINGHAM PLLake View44Open—InternetCity 311
10/1/20264728 S WOODLAWN AVEKenwood4Open—InternetCity 311
10/1/20265430 N LOTUS AVEJefferson Park45Open—Mobile DeviceCity 311
10/1/20262832 N RACINE AVELake View32Open—Mobile DeviceCity 311
10/1/202611013 S CEast Side10Open—InternetCity 311
10/1/20266509 S KILBOURN AVEWest Lawn13Open—Mobile DeviceCity 311
10/1/20262896 S ARCHER AVEBridgeport11Open—InternetCity 311
10/1/2026459 W 28TH PLBridgeport11Open—InternetCity 311
10/1/20263415 S RACINE AVEBridgeport11Open—InternetCity 311
10/1/20262334 N LARAMIE AVEBelmont Cragin31Open—InternetCity 311
10/1/20265828 N KENMORE AVEEdgewater48Open—InternetCity 311
10/1/20265504 N MULLIGAN AVEJefferson Park41Open—InternetCity 311
10/1/20265453 N VIRGINIA AVELincoln Square39Open—Phone CallCity 311
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