RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4555 locations in the last 30 days (4702 reports) · Last sighting 21 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

1,102 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/10/20263900 W 57TH STWest Elsdon23Open—Phone CallCity 311
10/10/20266628 S RICHMOND STChicago Lawn15Open—Mobile DeviceCity 311
10/10/20262153 N KEYSTONE AVEHermosa35Open—Phone CallCity 311
10/10/20261454 N BELL AVEWest Town1Open—InternetCity 311
10/10/20262618 S AVERS AVESouth Lawndale22Open—InternetCity 311
10/10/2026841 W IRVING PARK RDLake View46Open—InternetCity 311
10/10/20263702 N MOZART STIrving Park35Open—InternetCity 311
10/10/20265619 N SPAULDING AVENorth Park39Open—InternetCity 311
10/10/20261128 E HYDE PARK BLVDKenwood4Open—Phone CallCity 311
10/10/20261128 E HYDE PARK BLVDKenwood4Open—Phone CallCity 311
10/10/20261128 E HYDE PARK BLVDKenwood4Open—Phone CallCity 311
10/10/20265334 S GREENWOOD AVEHyde Park5Open—Mobile DeviceCity 311
10/10/20262501 W LAWRENCE AVELincoln Square40Open—InternetCity 311
10/10/20265804 S NASHVILLE AVEGarfield Ridge13Open—Mobile DeviceCity 311
10/10/20269137 S COTTAGE GROVE AVEChatham8Open—InternetCity 311
10/10/20264904 W BELDEN AVEBelmont Cragin31Open—Mobile DeviceCity 311
10/10/20261110 W 34TH PLBridgeport11Open—Mobile DeviceCity 311
10/10/20264421 N MONITOR AVEPortage Park38Open—Mobile DeviceCity 311
10/10/20263901 W 56TH PLWest Elsdon23Open—Mobile DeviceCity 311
10/10/20261084 N HERMITAGE AVEWest Town1Open—InternetCity 311
10/10/20266222 S VERNON AVEWoodlawn20Open—Phone CallCity 311
10/10/20263149 N NASHVILLE AVEBelmont Cragin36Open—InternetCity 311
10/10/20261030 E 47TH STKenwood4Open—Phone CallCity 311
10/10/2026632 W WELLINGTON AVELake View44Open—InternetCity 311
10/10/20267117 S DR MARTIN LUTHER KING JR DRGreater Grand Crossing6Open—Phone CallCity 311
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