RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4565 locations in the last 30 days (4732 reports) · Last sighting 14 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20265400 S KOMENSKY AVEWest Elsdon23Open—Mobile DeviceCity 311
9/17/20261404 W CHICAGO AVEWest Town27Open—InternetCity 311
9/18/20266217 N TALMAN AVEWest Ridge50Open—Phone CallCity 311
9/18/20262920 W RASCHER AVELincoln Square39Open—Phone CallCity 311
9/16/20261845 N HALSTED STLincoln Park43Open—InternetCity 311
9/15/20263037 W LOGAN BLVDLogan Square1Open—InternetCity 311
9/11/20262953 N MULLIGAN AVEBelmont Cragin30Open—Phone CallCity 311
9/18/20262831 S SHORT STBridgeport11Open—Alderman's OfficeCity 311
9/20/20261100 N LATROBE AVEAustin37Open—Phone CallCity 311
9/19/20262201 N HARLEM AVEAustin29Open—Mobile DeviceCity 311
9/16/20263751 N DAMEN AVENorth Center47Open—InternetCity 311
9/16/2026115 S PULASKI RDWest Garfield Park28Open—Mobile DeviceCity 311
9/16/20261456 W ELMDALE AVEEdgewater48Open—Phone CallCity 311
9/17/20262649 W RASCHER AVELincoln Square40Open—Mobile DeviceCity 311
9/18/20262333 S CALIFORNIA AVESouth Lawndale25Open—Mobile DeviceCity 311
9/16/20262013 W ADDISON STNorth Center47Open—Mobile DeviceCity 311
9/18/20261919 W CUYLER AVENorth Center47Open—InternetCity 311
9/16/20264806 N PAULINA STUptown47Open—InternetCity 311
9/16/20265558 S NATOMA AVEGarfield Ridge13Open—Phone CallCity 311
9/20/20268511 S BUFFALO AVESouth Chicago10Open—Mobile DeviceCity 311
9/10/20264207 S INDIANA AVEGrand Boulevard3Open—Mobile DeviceCity 311
9/20/20263035 S BONFIELD STBridgeport11Open—Phone CallCity 311
9/18/202650 W 77TH PLGreater Grand Crossing6Open—Phone CallCity 311
9/15/2026501 W 45TH STNew City15Open—Phone CallCity 311
9/18/20261431 N CAMPBELL AVEWest Town1Open—InternetCity 311
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