RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4225 locations in the last 30 days (4409 reports) · Last sighting 18 hours ago

📰 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 — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 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
9/15/20254049 N SOUTHPORT AVELake View46Completed9 daysInternetCity 311
3/9/20264049 N SOUTHPORT AVELake View46Completed3 daysInternetCity 311
7/5/20264049 W POTOMAC AVEHumboldt Park37Completed9 daysPhone CallCity 311
8/21/20264049 W WELLINGTON AVEAvondale31Completed12 daysInternetCity 311
5/13/20264049 W WELLINGTON AVEAvondale31Completed7 daysPhone CallCity 311
10/10/2025404 S WELLS STLoop34Completed4 daysInternetCity 311
11/8/20254050 N BELL AVENorth Center47Completed4 daysMobile DeviceCity 311
9/15/20254050 N KILBOURN AVEIrving Park45Completed10 daysInternetCity 311
6/5/20264050 N KILBOURN AVEIrving Park45Completed4 daysPhone CallCity 311
7/27/20264050 N LINCOLN AVENorth Center47Completed14 daysInternetCity 311
11/9/20264050 N MASON AVEPortage Park38Open—InternetCity 311
5/30/20264050 N PONTIAC AVEDunning38Completed5 daysMobile DeviceCity 311
2/13/20264050 N SHERIDAN RDUptown46Completed0 daysMobile DeviceCity 311
8/18/20254050 N WHIPPLE STIrving Park33Completed1 dayPhone CallCity 311
8/2/20264050 S MAPLEWOOD AVEBrighton Park12Completed12 daysInternetCity 311
7/29/20254050 W 57TH STWest Elsdon13Completed3 daysInternetCity 311
5/2/20264050 W 57TH STWest Elsdon13Completed2 daysInternetCity 311
5/27/20264050 W CORTLAND STHermosa26Completed5 daysInternetCity 311
6/24/20264050 W CORTLAND STHermosa26Completed5 daysMobile DeviceCity 311
2/25/20264050 W WEST END AVEWest Garfield Park28Completed2 daysInternetCity 311
2/24/20264050 W WEST END AVEWest Garfield Park28Completed1 dayInternetCity 311
8/13/20264050 W WILSON AVEAlbany Park39Completed8 daysPhone CallCity 311
11/30/20254051 N DAMEN AVENorth Center47Completed1 dayMobile DeviceCity 311
11/30/20254051 N DAMEN AVENorth Center47Completed1 dayInternetCity 311
11/4/20254051 N DAMEN AVENorth Center47Completed2 daysMobile DeviceCity 311
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