RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4153 locations in the last 30 days (4298 reports) · Last sighting 3 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/26/20263543 S MOZART STBrighton Park12Completed5 daysInternetCity 311
8/6/20264553 S SACRAMENTO AVEBrighton Park12Completed8 daysPhone CallCity 311
7/31/20264301 S CAMPBELL AVEBrighton Park15Completed17 daysAlderman's OfficeCity 311
8/5/20263114 W 41ST PLBrighton Park12Completed9 daysPhone CallCity 311
6/26/20263825 S ROCKWELL STBrighton Park12Completed5 daysPhone CallCity 311
8/20/20262719 W PERSHING RDBrighton Park12Completed14 daysMobile DeviceCity 311
9/1/20262853 W 40TH STBrighton Park12Completed14 daysAlderman's OfficeCity 311
8/3/20262608 W 38TH STBrighton Park12Completed11 daysMobile DeviceCity 311
9/23/20264351 S SACRAMENTO AVEBrighton Park12Completed7 daysMobile DeviceCity 311
8/27/20262638 W 40TH STBrighton Park12Completed8 daysPhone CallCity 311
6/9/20264408S S TALMAN AVEBrighton Park12Completed1 dayInternetCity 311
8/27/20264401 S SACRAMENTO AVEBrighton Park12Completed8 daysInternetCity 311
8/3/20263836 S WASHTENAW AVEBrighton Park12Completed11 daysMobile DeviceCity 311
10/9/20263506 S ROCKWELL STBrighton Park12Open—Mobile DeviceCity 311
9/23/20264403 S SACRAMENTO AVEBrighton Park12Completed7 daysMobile DeviceCity 311
9/23/20264356 S SACRAMENTO AVEBrighton Park12Completed7 daysMobile DeviceCity 311
9/23/20264430 S WHIPPLE STBrighton Park12Completed7 daysMobile DeviceCity 311
7/30/20264111 S CAMPBELL AVEBrighton Park12Completed11 daysAlderman's OfficeCity 311
8/9/20264517 S WHIPPLE STBrighton Park12Completed11 daysMobile DeviceCity 311
7/31/20264701 S TALMAN AVEBrighton Park15Completed18 daysAlderman's OfficeCity 311
8/7/20264124 S ARTESIAN AVEBrighton Park12Completed13 daysPhone CallCity 311
8/6/20263553 S ROCKWELL STBrighton Park12Completed14 daysPhone CallCity 311
8/25/20264643 S DRAKE AVEBrighton Park12Completed10 daysAlderman's OfficeCity 311
9/4/20264333 S ARTESIAN AVEBrighton Park15Completed14 daysMobile DeviceCity 311
9/4/20264331 S ARTESIAN AVEBrighton Park15Completed14 daysInternetCity 311
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