RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4335 locations in the last 30 days (4494 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

52,482 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/13/20265459 W BERENICE AVEPortage Park30Open—InternetCity 311
9/14/20263840 W 86TH PLAshburn18Open—Mobile DeviceCity 311
9/14/20262620 W POTOMAC AVEWest Town26Open—Mobile DeviceCity 311
9/13/20265419 W ROSCOE STPortage Park30Open—Phone CallCity 311
9/13/2026912 W ARMITAGE AVELincoln Park43Open—InternetCity 311
9/13/20262648 W MEDILL AVELogan Square1Open—Mobile DeviceCity 311
9/13/20261231 S FAIRFIELD AVENorth Lawndale28Open—Mobile DeviceCity 311
9/13/20263683 N ELSTON AVEIrving Park33Open—InternetCity 311
9/13/20265319 S ELLIS AVEHyde Park5Open—InternetCity 311
9/13/2026515 W 36TH STBridgeport11Open—InternetCity 311
9/14/20262128 N SEDGWICK STLincoln Park43Open—InternetCity 311
9/14/20269640 S PRAIRIE AVERoseland9Open—Phone CallCity 311
9/14/20265406 S LUNA AVEGarfield Ridge23Open—Phone CallCity 311
9/14/20262818 N MULLIGAN AVEBelmont Cragin30Open—Phone CallCity 311
9/14/20262130 W EVERGREEN AVEWest Town1Open—Mobile DeviceCity 311
9/13/20264534 N MEADE AVEPortage Park38Open—Phone CallCity 311
9/14/20265212 S INGLESIDE AVEHyde Park20Open—Phone CallCity 311
9/13/202611218 S KEDZIE AVEMount Greenwood19Open—InternetCity 311
9/13/20265422 N PAULINA STEdgewater40Open—Mobile DeviceCity 311
9/13/20263908 W BYRON STIrving Park30Open—Mobile DeviceCity 311
9/13/20261872 N DAYTON STLincoln Park43Open—InternetCity 311
9/13/20263248 W 64TH STChicago Lawn14Open—Mobile DeviceCity 311
9/13/20261532 E 67TH PLSouth Shore5Open—Mobile DeviceCity 311
9/13/20262748 W WINNEMAC AVELincoln Square40Open—Mobile DeviceCity 311
9/14/20261800 S LAWNDALE AVENorth Lawndale24Open—Phone CallCity 311
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