RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4531 locations in the last 30 days (4679 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

1,107 reports match your filters.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/2026913 N LEAMINGTON AVEAustin37Open—Alderman's OfficeCity 311
10/2/20265147 W DIVISION STAustin37Open—Alderman's OfficeCity 311
10/2/20264429 S FRANCISCO AVEBrighton Park12Open—InternetCity 311
10/2/20265231 N SPAULDING AVENorth Park39Open—InternetCity 311
10/2/20261145 N LARAMIE AVEAustin37Open—Alderman's OfficeCity 311
10/2/20264806 N AVERS AVEAlbany Park33Open—Phone CallCity 311
10/2/20266152 N OAKLEY AVEWest Ridge40Open—InternetCity 311
10/2/20262521 N NORDICA AVEMontclare29Open—Mobile DeviceCity 311
10/2/20262315 S SAWYER AVESouth Lawndale25Open—InternetCity 311
10/2/20265350 W NORTH AVEAustin37Completed3 daysInternetCity 311
10/2/20262321 W WARREN BLVDNear West Side27Open—Phone CallCity 311
10/2/20265804 W ADDISON STPortage Park38Open—Phone CallCity 311
10/2/20263918 N MOZART STIrving Park33Open—InternetCity 311
10/2/20267325 S EUCLID AVESouth Shore7Open—Phone CallCity 311
10/2/20261820 W MARQUETTE RDWest Englewood16Open—Mobile DeviceCity 311
10/2/20267351 N HOYNE AVERogers Park49Completed3 daysPhone CallCity 311
10/2/20269800 S HOUSTON AVESouth Deering10Open—Phone CallCity 311
10/2/20267431 N DAMEN AVERogers Park49Completed3 daysPhone CallCity 311
10/2/20264816 N NASHVILLE AVENorwood Park41Completed3 daysPhone CallCity 311
10/2/20266350 S LAMON AVEClearing13Completed3 daysPhone CallCity 311
10/2/20266660 N CLARK STRogers Park49Open—Phone CallCity 311
10/2/20261056 N HARDING AVEHumboldt Park37Completed3 daysPhone CallCity 311
10/2/2026822 W LILL AVELincoln Park43Open—InternetCity 311
10/2/20265124 S NEWLAND AVEGarfield Ridge23Open—Phone CallCity 311
10/2/20262724 W WINDSOR AVEAlbany Park40Open—InternetCity 311
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