RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4534 locations in the last 30 days (4698 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/28/20253923 W 85TH PLAshburn18Completed1 dayInternetCity 311
8/30/20252648 W 83RD STAshburn18Completed12 daysInternetCity 311
12/11/20253040 W 83RD PLAshburn18Completed1 dayPhone CallCity 311
7/15/20263745 W 80TH STAshburn18Completed5 daysPhone CallCity 311
10/1/20253757 W 85TH PLAshburn18Completed8 daysMobile DeviceCity 311
8/20/20253500 W 79TH STAshburn18Completed9 daysPhone CallCity 311
8/3/20267900 S CALIFORNIA AVEAshburn18Completed11 daysPhone CallCity 311
7/17/20263605 W 85TH STAshburn18Completed3 daysInternetCity 311
7/16/20263815 W 84TH STAshburn18Completed5 daysMobile DeviceCity 311
1/4/20263915 W 84TH STAshburn18Completed1 dayPhone CallCity 311
7/2/20263227 W 83RD STAshburn18Completed7 daysPhone CallCity 311
10/20/20263931 W 84TH PLAshburn18Open—Phone CallCity 311
7/16/20268616 S KEDVALE AVEAshburn18Completed4 daysMobile DeviceCity 311
10/9/20262553 W 81ST STAshburn18Completed13 daysMobile DeviceCity 311
7/2/20268200 S RICHMOND STAshburn18Completed7 daysAlderman's OfficeCity 311
7/6/20268721 S HERMITAGE AVEAuburn Gresham18Completed3 daysAlderman's OfficeCity 311
8/11/20257218 S FAIRFIELD AVEChicago Lawn18Completed4 daysPhone CallCity 311
8/23/20257404 S CAMPBELL AVEChicago Lawn18Completed11 daysPhone CallCity 311
9/11/20268001 S KEDZIE AVEAshburn18Completed13 daysPhone CallCity 311
10/1/20253848 W 84TH PLAshburn18Completed8 daysAlderman's OfficeCity 311
7/6/20263301 W 79TH STAshburn18Completed3 daysPhone CallCity 311
12/4/20258163 S HOMAN AVEAshburn18Completed4 daysInternetCity 311
12/17/20251736 W 89TH STAuburn Gresham18Completed1 dayInternetCity 311
10/1/20253749 W 84TH STAshburn18Completed8 daysAlderman's OfficeCity 311
12/18/20257212 S ROCKWELL STChicago Lawn18Completed3 daysMobile DeviceCity 311
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