RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4342 locations in the last 30 days (4502 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
9/20/20261801 S WABASH AVENear South Side3Open—InternetCity 311
9/20/20268831 S COLFAX AVESouth Chicago7Open—Mobile DeviceCity 311
9/20/20261818 W WINNEMAC AVELincoln Square40Open—InternetCity 311
9/20/20261958 N BURLING STLincoln Park43Open—Mobile DeviceCity 311
9/20/20261825 S BLUE ISLAND AVELower West Side25Open—Mobile DeviceCity 311
9/20/20262449 W ARMITAGE AVELogan Square1Open—InternetCity 311
9/20/20262015 N MOHAWK STLincoln Park43Open—Mobile DeviceCity 311
9/20/20262512 N MARSHFIELD AVELincoln Park32Open—InternetCity 311
9/20/20263708 N MOZART STIrving Park35Open—InternetCity 311
9/20/20263652 N SAYRE AVEDunning38Open—Mobile DeviceCity 311
9/20/202612322 S LAFAYETTE AVEWest Pullman9Open—InternetCity 311
9/20/2026947 W 31ST PLBridgeport11Open—InternetCity 311
9/20/20261432 W OHIO STWest Town1Open—InternetCity 311
9/20/20268511 S BUFFALO AVESouth Chicago10Open—Mobile DeviceCity 311
9/20/20267708 S KINGSTON AVESouth Shore7Open—InternetCity 311
9/20/20265231 S LOCKWOOD AVEGarfield Ridge23Open—Phone CallCity 311
9/20/20265410 S INDIANA AVEWashington Park3Open—InternetCity 311
9/20/20267343 W BELMONT AVEDunning29Open—Mobile DeviceCity 311
9/20/20262112 N BINGHAM STLogan Square1Open—Mobile DeviceCity 311
9/20/20265017 N NORMANDY AVENorwood Park41Open—Mobile DeviceCity 311
9/20/20265021 N NORMANDY AVENorwood Park41Open—Mobile DeviceCity 311
9/20/20262954 N MERRIMAC AVEBelmont Cragin30Open—InternetCity 311
9/20/20262738 N CENTRAL PARK AVELogan Square35Open—Mobile DeviceCity 311
9/20/20263506 N KILPATRICK AVEPortage Park30Open—Mobile DeviceCity 311
9/20/20267235 S ALBANY AVEChicago Lawn18Open—Mobile DeviceCity 311
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