RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4195 locations in the last 30 days (4379 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.

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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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/14/20253420 W PALMER STLogan Square35Completed3 daysMobile DeviceCity 311
4/8/20263420 W NORTH AVEHumboldt Park26Completed1 dayAlderman's OfficeCity 311
5/5/20263420 W NORTH AVEHumboldt Park26Completed2 daysPhone CallCity 311
7/23/20263420 W LYNDALE STLogan Square35Completed13 daysMobile DeviceCity 311
5/5/20263420 W GRANVILLE AVENorth Park50Completed2 daysInternetCity 311
1/23/20263420 S MORGAN STBridgeport11Completed0 daysMobile DeviceCity 311
11/18/20253420 S LITUANICA AVEBridgeport11Completed1 dayInternetCity 311
7/6/20263420 N OVERHILL AVEDunning38Completed0 daysPhone CallCity 311
12/9/20253420 N OVERHILL AVEDunning38Completed1 dayPhone CallCity 311
5/29/20263420 N NORDICA AVEDunning38Completed4 daysPhone CallCity 311
5/18/20263420 N MARSHFIELD AVELake View47Completed2 daysMobile DeviceCity 311
12/10/20253420 N LINCOLN AVELake View47Completed1 dayMobile DeviceCity 311
8/27/20253420 N LARAMIE AVEPortage Park31Completed13 daysInternetCity 311
5/19/2026341 W 29TH STArmour Square11Completed2 daysMobile DeviceCity 311
8/23/2025341 W 28TH PLArmour Square11Completed12 daysInternetCity 311
1/30/2026341 W 109TH STRoseland21Completed2 daysInternetCity 311
7/23/2026341 W 101ST STRoseland9Completed13 daysPhone CallCity 311
11/13/2025341 W 101ST STRoseland9Completed5 daysAlderman's OfficeCity 311
4/1/2026341 W 100TH STRoseland9Completed0 daysAlderman's OfficeCity 311
10/27/20263419 N SOUTHPORT AVELake View44Completed13 daysInternetCity 311
8/18/20263419 N OVERHILL AVEDunning38Completed13 daysMobile DeviceCity 311
6/16/20263419 N NARRAGANSETT AVEDunning30Completed6 daysPhone CallCity 311
4/2/20263419 N LOWELL AVEIrving Park30Completed1 dayInternetCity 311
6/20/20263418 W MEDILL AVELogan Square35Completed4 daysInternetCity 311
10/31/20263418 W MEDILL AVELogan Square35Open—InternetCity 311
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