RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4334 locations in the last 30 days (4493 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
9/21/20262259 N LINCOLN PARK WESTLincoln Park43Open—Mobile DeviceCity 311
9/21/20262158 N STOCKTON DRLincoln Park43Open—Mobile DeviceCity 311
9/21/20267720 S SAWYER AVEAshburn18Open—Phone CallCity 311
9/21/2026865 W CORNELIA AVELake View44Open—Mobile DeviceCity 311
9/21/20263244 N MONTICELLO AVEAvondale30Open—Phone CallCity 311
9/21/20262625 W ARMITAGE AVELogan Square1Open—Phone CallCity 311
9/21/202610626 S LOWE AVERoseland21Open—Phone CallCity 311
9/21/20261118 W FULLERTON AVELincoln Park43Open—Alderman's OfficeCity 311
9/21/20265303 S FRANCISCO AVEGage Park14Open—Phone CallCity 311
9/21/2026115 S AUSTIN BLVDAustin29Open—Phone CallCity 311
9/21/20263041 N ODELL AVEDunning29Open—Phone CallCity 311
9/21/20268353 S BRANDON AVESouth Chicago10Open—InternetCity 311
9/21/20265117 N WOLCOTT AVELincoln Square40Open—Phone CallCity 311
9/21/202610516 S EGGLESTON AVERoseland21Open—Phone CallCity 311
9/21/20264819 N ROCKWELL STLincoln Square40Open—Phone CallCity 311
9/21/20261821 W FARWELL AVERogers Park49Open—Phone CallCity 311
9/21/20261614 W CATALPA AVEEdgewater40Open—Phone CallCity 311
9/21/20262310 S MILLARD AVESouth Lawndale22Open—InternetCity 311
9/21/20261421 W ARGYLE STUptown47Open—Phone CallCity 311
9/21/20264743 N PAULINA STUptown47Open—Phone CallCity 311
9/21/20265400 S KOMENSKY AVEWest Elsdon23Open—Mobile DeviceCity 311
9/21/2026755 W CORNELIA AVELake View44Open—Mobile DeviceCity 311
9/21/20267113 S CHAMPLAIN AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
9/21/20267115 S CHAMPLAIN AVEGreater Grand Crossing6Open—Mobile DeviceCity 311
9/21/20261215 W GARFIELD BLVDWest Englewood16Open—Alderman's OfficeCity 311
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