RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4188 locations in the last 30 days (4371 reports) · Last sighting 16 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 — 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
12/11/20254801 N SACRAMENTO AVEAlbany Park40Completed1 dayPhone CallCity 311
10/5/20254941 N WHIPPLE STAlbany Park33Completed9 daysPhone CallCity 311
9/30/20254529 N SAWYER AVEAlbany Park33Completed8 daysPhone CallCity 311
10/15/20264933 N KENTUCKY AVEAlbany Park39Completed15 daysMobile DeviceCity 311
8/22/20254754 N KEWANEE AVEAlbany Park39Completed11 daysPhone CallCity 311
7/4/20264740 N LAWNDALE AVEAlbany Park33Completed6 daysPhone CallCity 311
9/30/20253138 W WILSON AVEAlbany Park33Completed8 daysAlderman's OfficeCity 311
10/5/20253151 W ARGYLE STAlbany Park33Completed9 daysMobile DeviceCity 311
9/21/20254649 N ELSTON AVEAlbany Park39Completed9 daysInternetCity 311
9/19/20254818 N KEDVALE AVEAlbany Park39Completed11 daysInternetCity 311
9/11/20263149 W ARGYLE STAlbany Park33Completed12 daysMobile DeviceCity 311
10/21/20263138 W WILSON AVEAlbany Park33Completed14 daysInternetCity 311
11/7/20265000 N TROY STAlbany Park33Open—InternetCity 311
9/29/20254728 N SACRAMENTO AVEAlbany Park33Completed3 daysPhone CallCity 311
10/5/20264926 N KEDZIE AVEAlbany Park33Completed15 daysAlderman's OfficeCity 311
8/6/20254912 N HAMLIN AVEAlbany Park39Completed12 daysAlderman's OfficeCity 311
10/5/20253538 W AINSLIE STAlbany Park33Completed9 daysInternetCity 311
10/28/20265007 N KILDARE AVEAlbany Park39Completed8 daysPhone CallCity 311
8/15/20254415 N SPAULDING AVEAlbany Park33Completed10 daysInternetCity 311
6/30/20264705 N SAWYER AVEAlbany Park33Completed7 daysPhone CallCity 311
7/9/20264908 N TROY STAlbany Park33Completed6 daysPhone CallCity 311
8/15/20253108 W WILSON AVEAlbany Park33Completed12 daysInternetCity 311
9/9/20264931 N KENTUCKY AVEAlbany Park39Completed15 daysMobile DeviceCity 311
12/15/20255020 N ALBANY AVEAlbany Park33Completed1 dayInternetCity 311
10/8/20253850 W ARGYLE STAlbany Park39Completed6 daysInternetCity 311
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