RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4275 locations in the last 30 days (4462 reports) · Last sighting 12 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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/9/20254911 W JACKSON BLVDAustin29Completed6 daysInternetCity 311
7/31/20264911 W MONTANA STBelmont Cragin31Completed12 daysMobile DeviceCity 311
11/14/20254912 N CENTRAL PARK AVEAlbany Park33Completed3 daysMobile DeviceCity 311
10/21/20254912 N CHRISTIANA AVEAlbany Park33Completed1 dayPhone CallCity 311
8/6/20254912 N CHRISTIANA AVEAlbany Park33Completed1 dayPhone CallCity 311
8/6/20254912 N HAMLIN AVEAlbany Park39Completed12 daysAlderman's OfficeCity 311
8/5/20264912 N KEELER AVEAlbany Park39Completed12 daysPhone CallCity 311
8/3/20254912 N NEWCASTLE AVENorwood Park41Completed15 daysMobile DeviceCity 311
9/13/20264912 N WASHTENAW AVELincoln Square40Completed10 daysInternetCity 311
8/2/20264912 N WINCHESTER AVELincoln Square47Completed12 daysInternetCity 311
10/27/20264912 S KILPATRICK AVEGarfield Ridge14Completed13 daysPhone CallCity 311
9/19/20264912 S KNOX AVEGarfield Ridge14Completed12 daysInternetCity 311
7/23/20264912 S KOSTNER AVEArcher Heights14Completed4 daysInternetCity 311
9/27/20254912 W CULLOM AVEPortage Park45Completed10 daysPhone CallCity 311
5/24/20264913 N LOWELL AVEAlbany Park39Completed3 daysMobile DeviceCity 311
1/17/20264913 N TALMAN AVELincoln Square40Completed3 daysPhone CallCity 311
8/6/20264913 N TRIPP AVEAlbany Park39Completed11 daysInternetCity 311
10/14/20254913 S TRIPP AVEArcher Heights14Completed6 daysAlderman's OfficeCity 311
6/18/20264913 W ARGYLE STForest Glen45Completed5 daysInternetCity 311
9/23/20264913 W DAKIN STPortage Park45Completed12 daysMobile DeviceCity 311
10/1/20254913 W PENSACOLA AVEPortage Park45Completed9 daysPhone CallCity 311
9/23/20254913 W PENSACOLA AVEPortage Park45Completed8 daysInternetCity 311
6/7/20264914 N DAMEN AVELincoln Square40Completed2 daysInternetCity 311
7/30/20264914 N FRANCISCO AVELincoln Square40Completed8 daysInternetCity 311
9/14/20254914 N KEDZIE AVEAlbany Park33Completed10 daysInternetCity 311
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