RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4333 locations in the last 30 days (4492 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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/18/20265833 W WARWICK AVEPortage Park38Open—InternetCity 311
9/18/20261919 W CUYLER AVENorth Center47Open—InternetCity 311
9/18/202613415 S AVENUE MHegewisch10Open—Phone CallCity 311
9/18/20261334 W WOLFRAM STLake View32Open—InternetCity 311
9/18/20262121 W HURON STWest Town36Open—Mobile DeviceCity 311
9/18/20265238 N CALIFORNIA AVELincoln Square39Open—Mobile DeviceCity 311
9/18/20262715 W RASCHER AVELincoln Square40Open—Mobile DeviceCity 311
9/18/20265351 N CALIFORNIA AVELincoln Square40Open—Mobile DeviceCity 311
9/18/20262212 N KEYSTONE AVEHermosa35Open—Alderman's OfficeCity 311
9/18/20261241 S ST LOUIS AVENorth Lawndale24Open—Phone CallCity 311
9/18/20268600 S KENNETH AVEAshburn18Open—Alderman's OfficeCity 311
9/18/20265430 W GALE STJefferson Park45Open—Phone CallCity 311
9/18/20267920 S HERMITAGE AVEAuburn Gresham17Open—Phone CallCity 311
9/18/2026643 N LEAMINGTON AVEAustin37Open—Phone CallCity 311
9/18/20265818 W LAKE STAustin29Open—Alderman's OfficeCity 311
9/18/20262333 S CALIFORNIA AVESouth Lawndale25Open—Mobile DeviceCity 311
9/18/2026920 N TRUMBULL AVEHumboldt Park27Open—Phone CallCity 311
9/18/20267525 S MAY STAuburn Gresham17Open—Phone CallCity 311
9/18/20261809 W EDDY STNorth Center47Open—InternetCity 311
9/18/20263015 W 59TH STChicago Lawn15Open—InternetCity 311
9/18/20261431 N CAMPBELL AVEWest Town1Open—InternetCity 311
9/18/20265352 S WELLS STFuller Park20Open—InternetCity 311
9/18/20263001 W 59TH STChicago Lawn15Open—InternetCity 311
9/18/20264739 N KEWANEE AVEAlbany Park39Open—Phone CallCity 311
9/18/20267330 N HONORE STRogers Park49Open—Mobile DeviceCity 311
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