RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4709 reports) · Last sighting 10 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/31/20258501 S SPRINGFIELD AVEAshburn18Completed11 daysPhone CallCity 311
8/28/20253605 W 81ST PLAshburn18Completed13 daysAlderman's OfficeCity 311
8/28/20253750 W 84TH STAshburn18Completed13 daysAlderman's OfficeCity 311
1/5/20263910 W 83RD PLAshburn18Completed1 dayMobile DeviceCity 311
10/8/20258000 S CAMPBELL AVEAshburn18Completed6 daysInternetCity 311
7/11/20263834 W 83RD STAshburn18Completed9 daysMobile DeviceCity 311
12/3/20258510 S KARLOV AVEAshburn18Completed1 dayInternetCity 311
1/6/20263724 W 81ST STAshburn18Completed0 daysInternetCity 311
10/3/20257207 S CALIFORNIA AVEChicago Lawn18Completed6 daysPhone CallCity 311
9/24/20257247 S CALIFORNIA AVEChicago Lawn18Completed7 daysPhone CallCity 311
12/10/20258176 S SCOTTSDALE AVEAshburn18Completed1 dayPhone CallCity 311
9/24/20257201 S CALIFORNIA AVEChicago Lawn18Completed7 daysPhone CallCity 311
9/12/20264357 W 83RD STAshburn18Completed13 daysInternetCity 311
12/4/20257213 S MOZART STChicago Lawn18Completed0 daysInternetCity 311
10/3/20253519 W 78TH PLAshburn18Completed6 daysInternetCity 311
9/12/20263805 W 86TH PLAshburn18Completed13 daysPhone CallCity 311
12/28/20257347 S KEDZIEChicago Lawn18Completed1 daySalesforce Mobile AppCity 311
8/26/20251732 W 89TH STAuburn Gresham18Completed9 daysPhone CallCity 311
10/2/20253500 W 79TH STAshburn18Completed7 daysPhone CallCity 311
8/20/20258012 S SAWYER AVEAshburn18Completed14 daysPhone CallCity 311
7/6/20267256 S SACRAMENTO AVEChicago Lawn18Completed3 daysInternetCity 311
8/28/20253750 W 83RD STAshburn18Completed14 daysInternetCity 311
12/4/20253623 W 86TH STAshburn18Completed1 dayInternetCity 311
12/15/20257150 S CALIFORNIA AVEChicago Lawn18Completed1 dayPhone CallCity 311
8/18/20253442 W 83RD STAshburn18Completed8 daysInternetCity 311
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