RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4503 locations in the last 30 days (4653 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.

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

1,057 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/4/20265640 S HARPER AVEHyde Park5Open—Mobile DeviceCity 311
10/4/20263755 W ADDISON STAvondale30Open—Phone CallCity 311
10/4/20262817 N TALMAN AVEAvondale35Open—Phone CallCity 311
10/4/20263629 N OCTAVIA AVEDunning38Open—Phone CallCity 311
10/4/20262618 W EVERGREEN AVEWest Town26Open—Phone CallCity 311
10/4/20263505 W MONTROSE AVEIrving Park33Open—Mobile DeviceCity 311
10/4/20266341 W SCHOOL STDunning30Open—Mobile DeviceCity 311
10/4/20267609 N BOSWORTH AVERogers Park49Open—InternetCity 311
10/4/20262515 S MILLARD AVESouth Lawndale22Open—Phone CallCity 311
10/4/20265600 N NAGLE AVENorwood Park41Open—Phone CallCity 311
10/4/20262627 N TALMAN AVELogan Square1Open—Mobile DeviceCity 311
10/4/20264018 N MENARD AVEPortage Park38Open—Mobile DeviceCity 311
10/4/20263709 N ORIOLE AVEDunning38Open—Mobile DeviceCity 311
10/4/20261508 W CHESTNUT STWest Town1Open—InternetCity 311
10/4/20266530 S MORGAN STEnglewood16Open—InternetCity 311
10/4/20261050 N MENARD AVEAustin29Open—InternetCity 311
10/4/20264211 W HIRSCH STHumboldt Park36Open—InternetCity 311
10/4/20264919 N LESTER AVEJefferson Park45Open—InternetCity 311
10/4/20264733 N KARLOV AVEAlbany Park39Open—Phone CallCity 311
10/4/202610709 S MEast Side10Open—InternetCity 311
10/4/202615 E DIVISION STNear North Side2Open—InternetCity 311
10/4/20269138 S LAFAYETTE AVERoseland9Open—Phone CallCity 311
10/4/20261155 E HYDE PARK BLVDHyde Park5Open—InternetCity 311
10/4/20265507 S EVERETT AVEHyde Park5Open—InternetCity 311
10/4/2026613 W BRIAR PLLake View44Open—InternetCity 311
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