RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4459 locations in the last 30 days (4624 reports) · Last sighting 9 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

931 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/16/202610501 S LA SALLE STRoseland9Open—Phone CallCity 311
10/16/20263213 N WILTON AVELake View44Open—Phone CallCity 311
10/16/2026312 N MASON AVEAustin29Open—Phone CallCity 311
10/16/20265421 W THOMAS STAustin37Open—Phone CallCity 311
10/16/20264918 W BALMORAL AVEForest Glen39Open—Mobile DeviceCity 311
10/16/2026722 W ADDISON STLake View46Open—Alderman's OfficeCity 311
10/16/20261400 W 73RD PLWest Englewood17Open—Phone CallCity 311
10/16/2026832 N MOZART STWest Town36Open—Mobile DeviceCity 311
10/16/20264319 W HIRSCH STHumboldt Park36Open—Mobile DeviceCity 311
10/16/20262037 W WEBSTER AVELogan Square32Open—InternetCity 311
10/16/20267532 S DORCHESTER AVESouth Shore8Open—Alderman's OfficeCity 311
10/16/20266242 N KENMORE AVEEdgewater48Completed3 daysPhone CallCity 311
10/16/20263539 W 12TH PLNorth Lawndale24Open—InternetCity 311
10/16/20264021 W BELLE PLAINE AVEIrving Park39Open—InternetCity 311
10/16/20266737 W RASCHER AVENorwood Park41Open—Mobile DeviceCity 311
10/16/20263105 N KOSTNER AVEHermosa31Open—Phone CallCity 311
10/16/20263945 N TRIPP AVEIrving Park30Open—Mobile DeviceCity 311
10/16/2026856 N WINCHESTER AVEWest Town36Open—InternetCity 311
10/16/20263106 N LOWELL AVEHermosa31Open—Phone CallCity 311
10/16/20264338 W BARRY AVEHermosa31Open—Phone CallCity 311
10/16/20264021 W NORTH AVEHumboldt Park26Open—Mobile DeviceCity 311
10/16/20262832 N RACINE AVELake View32Completed3 daysPhone CallCity 311
10/16/20264601 N AVERS AVEAlbany Park33Completed3 daysPhone CallCity 311
10/16/20262049 N HOWE STLincoln Park43Open—InternetCity 311
10/16/20265831 N WINTHROP AVEEdgewater48Completed3 daysPhone CallCity 311
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