RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4471 locations in the last 30 days (4636 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/14/20266645 S RICHMOND STChicago Lawn15Open—InternetCity 311
9/23/2026458 N GREEN STWest Town27Open—InternetCity 311
9/24/20266427 N NATOMA AVENorwood Park41Open—InternetCity 311
9/12/202610811 S FOREST AVERoseland9Open—Phone CallCity 311
9/18/20265010 N ALBANY AVEAlbany Park33Open—InternetCity 311
9/18/20269957 S CAMPBELL AVEBeverly19Open—Phone CallCity 311
9/24/20265202 S SACRAMENTO AVEGage Park14Open—Phone CallCity 311
9/15/20264257 N LOWELL AVEIrving Park39Open—Phone CallCity 311
9/23/202612432 S PRINCETON AVEWest Pullman9Open—Phone CallCity 311
9/14/20261132 N WINCHESTER AVEWest Town1Open—InternetCity 311
9/11/20261837 W CUYLER AVENorth Center47Open—Mobile DeviceCity 311
9/14/2026847 S WABASH AVELoop4Open—InternetCity 311
9/18/20265800 S NEENAH AVEGarfield Ridge13Open—InternetCity 311
9/15/2026953 N AVERS AVEHumboldt Park27Open—Phone CallCity 311
9/22/20265751 W NEWPORT AVEPortage Park30Open—InternetCity 311
9/14/202610415 S COTTAGE GROVE AVEPullman9Open—InternetCity 311
9/20/20265410 S INDIANA AVEWashington Park3Open—InternetCity 311
9/23/20263811 W 46TH STArcher Heights14Open—Phone CallCity 311
9/23/20264345 W WILCOX STWest Garfield Park28Open—InternetCity 311
9/23/20264349 W SCHUBERT AVEHermosa31Open—InternetCity 311
9/23/20267938 S GREEN STAuburn Gresham17Open—Phone CallCity 311
9/18/20261430 W ELMDALE AVEEdgewater48Open—Mobile DeviceCity 311
9/22/20262517 S CENTRAL PARK AVESouth Lawndale22Open—Phone CallCity 311
9/22/20262153 W BERTEAU AVENorth Center47Open—InternetCity 311
9/24/20266442 S SANGAMON STEnglewood16Open—Phone CallCity 311
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