RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4189 locations in the last 30 days (4369 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/12/20262019 N KARLOV AVEHermosa26Completed3 daysPhone CallCity 311
8/15/20259039 S DOBSON AVEBurnside8Completed3 daysPhone CallCity 311
8/15/20257654 S CREGIER AVESouth Shore8Completed3 daysPhone CallCity 311
8/15/202510336 S CLAREMONT AVEBeverly19Completed3 daysPhone CallCity 311
9/21/2025538 W 61ST STEnglewood20Completed3 daysInternetCity 311
6/12/20265619 W 64TH STClearing13Completed3 daysMobile DeviceCity 311
5/23/20265142 S LA CROSSE AVEGarfield Ridge23Completed3 daysMobile DeviceCity 311
4/27/20264864 N MASON AVEJefferson Park45Completed3 daysInternetCity 311
5/18/20262146 W GRACE STNorth Center47Completed3 daysInternetCity 311
12/6/20252507 W AUGUSTA BLVDWest Town36Completed3 daysInternetCity 311
10/6/20255608 S SEELEY AVEWest Englewood15Completed3 daysMobile DeviceCity 311
5/30/20262414 S MILLARD AVESouth Lawndale22Completed3 daysInternetCity 311
5/30/20264455 N HERMITAGE AVEUptown47Completed3 daysInternetCity 311
6/21/20264814 N HOYNE AVELincoln Square47Completed3 daysInternetCity 311
7/4/20268801 S CARPENTER STAuburn Gresham21Completed3 daysMobile DeviceCity 311
8/15/202510907 S HARDING AVEMount Greenwood19Completed3 daysPhone CallCity 311
8/15/202510238 S FAIRFIELD AVEBeverly19Completed3 daysPhone CallCity 311
4/25/20261713 N RICHMOND STWest Town26Completed3 daysMobile DeviceCity 311
5/15/20265823 N CHRISTIANA AVENorth Park39Completed3 daysPhone CallCity 311
6/15/20263260 W WABANSIA AVEHumboldt Park26Completed3 daysMobile DeviceCity 311
12/6/2025905 W LAKESIDE PLUptown46Completed3 daysMobile DeviceCity 311
5/2/20265106 N SAYRE AVENorwood Park41Completed3 daysInternetCity 311
11/1/20257027 W 63RD STClearing13Completed3 daysMobile DeviceCity 311
9/23/20252100 N PULASKI RDHermosa35Completed3 daysMobile DeviceCity 311
4/28/20262941 N AVERS AVEAvondale31Completed3 daysMobile DeviceCity 311
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