RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4046 locations in the last 30 days (4223 reports) · Last sighting yesterday

📰 Blog
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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.

📰 This week’s rat recap

Weekly Rat Trends — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 days on average to resolve a complaint
Read the full recap →

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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/26/20264217 S ARTESIAN AVEBrighton Park12Completed5 daysPhone CallCity 311
9/14/20263522 S MAPLEWOOD AVEBrighton Park12Completed10 daysPhone CallCity 311
7/29/20254417 S ARTESIAN AVEBrighton Park15Completed8 daysMobile DeviceCity 311
9/4/20264627 S HOMAN AVEBrighton Park12Completed13 daysAlderman's OfficeCity 311
8/6/20263553 S ROCKWELL STBrighton Park12Completed14 daysPhone CallCity 311
7/30/20252925 W 36TH STBrighton Park12Completed6 daysPhone CallCity 311
6/24/20263506 S ROCKWELL STBrighton Park12Completed2 daysMobile DeviceCity 311
7/31/20262500 W 45TH STBrighton Park12Completed10 daysAlderman's OfficeCity 311
9/24/20264419 S TROY STBrighton Park12Completed6 daysPhone CallCity 311
9/28/20264340 S ALBANY AVEBrighton Park12Completed15 daysPhone CallCity 311
7/31/20264701 S TALMAN AVEBrighton Park15Completed18 daysAlderman's OfficeCity 311
8/25/20264643 S DRAKE AVEBrighton Park12Completed10 daysAlderman's OfficeCity 311
8/17/20264124 S ARTESIAN AVEBrighton Park12Completed3 daysMobile DeviceCity 311
10/6/20264629 S CHRISTIANA AVEBrighton Park12Completed10 daysMobile DeviceCity 311
9/4/20264124 S CAMPBELL AVEBrighton Park12Completed13 daysPhone CallCity 311
8/2/20264050 S MAPLEWOOD AVEBrighton Park12Completed12 daysInternetCity 311
6/26/20263543 S MOZART STBrighton Park12Completed5 daysInternetCity 311
9/11/20264035 S MAPLEWOOD AVEBrighton Park12Completed13 daysInternetCity 311
6/26/20263825 S ROCKWELL STBrighton Park12Completed5 daysPhone CallCity 311
7/31/20262400 W 45TH STBrighton Park15Completed17 daysAlderman's OfficeCity 311
8/27/20262638 W 40TH STBrighton Park12Completed8 daysPhone CallCity 311
7/31/20262401 43RD STBrighton Park15Completed17 daysAlderman's OfficeCity 311
7/31/20262400 W 45TH STBrighton Park15Completed17 daysAlderman's OfficeCity 311
9/4/20262559 W PERSHING RDBrighton Park12Completed13 daysPhone CallCity 311
7/31/20264701 S WASHTENAW AVEBrighton Park15Completed18 daysAlderman's OfficeCity 311
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