RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4006 locations in the last 30 days (4184 reports) · Last sighting 17 hours ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/24/20263540 N RETA AVELake View44Completed2 daysMobile DeviceCity 311
10/20/2025544 W BRIAR PLLake View44Completed8 daysPhone CallCity 311
9/14/20251441 W FLETCHER STLake View32Completed11 daysInternetCity 311
3/20/20263020 N BROADWAYLake View44Completed4 daysMobile DeviceCity 311
9/22/2025954 W GRACE STLake View46Completed4 daysInternetCity 311
10/24/20251446 W DIVERSEY AVELake View32Completed5 daysPhone CallCity 311
8/21/20263205 N CLARK STLake View44Completed12 daysInternetCity 311
9/10/20253510 N LINCOLN AVELake View47Completed9 daysPhone CallCity 311
10/14/20263928 N PINE GROVE AVELake View46Completed12 daysInternetCity 311
3/23/20261142 W DIVERSEY PKWYLake View44Completed1 dayInternetCity 311
10/28/20253241 N SEMINARY AVELake View44Completed2 daysPhone CallCity 311
9/11/2025728 W WAVELAND AVELake View46Completed13 daysMobile DeviceCity 311
11/2/20262845 N SOUTHPORT AVELake View32Completed3 daysMobile DeviceCity 311
10/15/20261303 W WELLINGTON AVELake View32Completed13 daysPhone CallCity 311
11/14/20253056 N RACINE AVELake View32Completed4 daysPhone CallCity 311
10/13/20263456 N BOSWORTH AVELake View47Completed15 daysInternetCity 311
9/8/2025747 W CORNELIA AVELake View44Completed9 daysMobile DeviceCity 311
8/17/20263510 N SOUTHPORT AVELake View44Completed10 daysInternetCity 311
8/17/20263515 N WILTON AVELake View44Completed10 daysMobile DeviceCity 311
11/14/20253800 N CLARK STLake View44Completed3 daysPhone CallCity 311
10/19/20261455 W ROSCOE STLake View32Completed15 daysMobile DeviceCity 311
3/2/2026530 W DIVERSEY AVELake View44Completed2 daysMobile DeviceCity 311
4/6/20263515 N WILTON AVELake View44Completed1 dayInternetCity 311
9/28/20263740 N ASHLAND AVELake View47Completed15 daysInternetCity 311
4/6/20263521 N WILTON AVELake View44Completed1 dayInternetCity 311
Page 2098 of 2,413
PreviousNext