RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4385 locations in the last 30 days (4540 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

1,046 reports match your filters.

Clear filters
DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/20261407 N LOREL AVEAustin37Open—Mobile DeviceCity 311
9/25/202611338 S ST LOUIS AVEMount Greenwood19Open—Phone CallCity 311
9/25/2026444 W 101ST PLWashington Heights9Open—Phone CallCity 311
9/25/202610136 S NORMAL AVEWashington Heights9Open—Phone CallCity 311
9/25/20265445 N CALIFORNIA AVELincoln Square40Open—InternetCity 311
9/25/20264525 N ASHLAND AVEUptown47Open—Phone CallCity 311
9/25/20263232 N LAKEWOOD AVELake View44Open—Alderman's OfficeCity 311
9/25/20264311 W 47TH STArcher Heights14Open—InternetCity 311
9/25/202612119 S EMERALD AVEWest Pullman21Open—Phone CallCity 311
9/25/20262629 W HOMER STLogan Square1Open—InternetCity 311
9/25/20264621 S HARDING AVEArcher Heights14Open—Phone CallCity 311
9/25/20263536 N RAVENSWOOD AVENorth Center47Open—Phone CallCity 311
9/25/20265428 W 63RD PLClearing13Open—InternetCity 311
9/25/20263540 W LAKE STEast Garfield Park28Open—Phone CallCity 311
9/25/20263544 W LAKE STEast Garfield Park28Open—Phone CallCity 311
9/25/20262000 W 69TH PLWest Englewood17Open—Phone CallCity 311
9/25/20264838 N ALBANY AVEAlbany Park33Open—InternetCity 311
9/25/20261220 N WASHTENAW AVEWest Town26Open—InternetCity 311
9/25/20262825 W FARRAGUT AVELincoln Square39Open—Phone CallCity 311
9/25/20264065 N KENMORE AVEUptown46Open—Mobile DeviceCity 311
9/25/20266443 S LOCKWOOD AVEClearing13Open—Mobile DeviceCity 311
9/25/20265400 N LINCOLN AVELincoln Square40Open—InternetCity 311
9/25/2026650 W GRACE STLake View46Open—Phone CallCity 311
9/25/20264417 N MAGNOLIA AVEUptown46Open—InternetCity 311
9/25/20264047 N DAMEN AVENorth Center47Open—Mobile DeviceCity 311
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