RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4330 locations in the last 30 days (4489 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.

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

1,215 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/18/20266823 S KOSTNER AVEWest Lawn23Open—Phone CallCity 311
9/18/20264337 W 21ST STNorth Lawndale24Open—Phone CallCity 311
9/18/20261016 W CULLERTON STLower West Side25Open—Mobile DeviceCity 311
9/18/20265104 W SCHOOL STPortage Park31Open—Phone CallCity 311
9/18/20261000 W CULLERTON STLower West Side25Open—Mobile DeviceCity 311
9/18/20262446 W WALTON STWest Town36Open—Phone CallCity 311
9/18/20263681 N ELSTON AVEIrving Park33Open—Mobile DeviceCity 311
9/18/20263121 N CHRISTIANA AVEAvondale35Open—InternetCity 311
9/18/20266511 N OAKLEY AVEWest Ridge50Open—Mobile DeviceCity 311
9/18/20266828 S CAMPBELL AVEChicago Lawn16Open—Phone CallCity 311
9/18/20263100 N LAWNDALE AVEAvondale35Open—Mobile DeviceCity 311
9/18/20265848 N TALMAN AVEWest Ridge40Open—Phone CallCity 311
9/18/20261900 W WOLFRAM STNorth Center32Open—Phone CallCity 311
9/18/20264053 N LONG AVEPortage Park38Open—Mobile DeviceCity 311
9/18/20266964 W IMLAY STNorwood Park41Open—Phone CallCity 311
9/18/20265845 N WASHTENAW AVEWest Ridge40Open—Phone CallCity 311
9/18/20267712 S BISHOP STAuburn Gresham17Open—Phone CallCity 311
9/18/2026832 W LAKESIDE PLUptown46Open—InternetCity 311
9/18/20261473 W 73RD STWest Englewood17Open—InternetCity 311
9/18/20265020 N MELVINA AVEJefferson Park45Open—Phone CallCity 311
9/18/202611113 S TRUMBULL AVEMount Greenwood19Open—InternetCity 311
9/18/20262058 N STOCKTON DRLincoln Park43Open—Mobile DeviceCity 311
9/18/20265207 S SAWYER AVEGage Park14Open—InternetCity 311
9/18/20264433 N ST LOUIS AVEAlbany Park33Open—InternetCity 311
9/18/20264113 N WESTERN AVENorth Center47Open—InternetCity 311
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