RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4785 locations in the last 30 days (4937 reports) · Last sighting 11 hours 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20261421 W ARGYLE STUptown47Completed1 dayPhone CallCity 311
6/1/20267810 S BISHOP STAuburn Gresham17Completed1 dayMobile DeviceCity 311
4/8/20264739 N LINCOLN AVELincoln Square47Completed1 dayMobile DeviceCity 311
4/27/20262444 N SEMINARY AVELincoln Park43Completed1 dayInternetCity 311
3/16/20265628 N MENARD AVEJefferson Park45Completed1 dayInternetCity 311
6/10/20268419 S KOMENSKY AVEAshburn18Completed1 dayPhone CallCity 311
2/2/20261422 S AVERS AVENorth Lawndale24Completed1 dayPhone CallCity 311
7/8/20263252 N DRAKE AVEAvondale35Completed1 dayPhone CallCity 311
6/1/20263817 W 85TH PLAshburn18Completed1 dayInternetCity 311
11/4/20254843 S PRAIRIE AVEGrand Boulevard3Completed1 dayMobile DeviceCity 311
6/15/20263840 W 110TH STMount Greenwood19Completed1 dayInternetCity 311
4/28/20261514 S KILBOURN AVENorth Lawndale24Completed1 dayMobile DeviceCity 311
3/16/20261541 S KOSTNER AVENorth Lawndale24Completed1 dayPhone CallCity 311
3/5/20263536 N RACINE AVELake View44Completed1 dayMobile DeviceCity 311
3/19/20266633 S SACRAMENTO AVEChicago Lawn15Completed1 dayPhone CallCity 311
9/14/20261128 W ALBION AVERogers Park49Completed1 dayPhone CallCity 311
4/22/20264502 W MAYPOLE AVEWest Garfield Park28Completed1 dayMobile DeviceCity 311
6/3/2026229 W 23RD STArmour Square11Completed1 dayAlderman's OfficeCity 311
4/13/20266641 S RACINE AVEEnglewood16Completed1 dayPhone CallCity 311
9/2/20256300 W WAVELAND AVEDunning38Completed1 dayPhone CallCity 311
2/2/202612126 S ADA STWest Pullman21Completed1 dayInternetCity 311
4/19/20267139 W 63RD PLClearing13Completed1 dayInternetCity 311
5/25/20265605 S MERRIMAC AVEGarfield Ridge13Completed1 dayInternetCity 311
3/10/20267566 S HAMILTON AVEAuburn Gresham18Completed1 dayPhone CallCity 311
10/27/20256218 S UNIVERSITY AVEWoodlawn20Completed1 dayPhone CallCity 311
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