RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4050 locations in the last 30 days (4231 reports) · Last sighting 13 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
2/4/20262900 N RACINE AVELake View32Completed0 daysMobile DeviceCity 311
6/23/20263851 N LAKEWOOD AVELake View44Completed2 daysPhone CallCity 311
7/17/20261448 W ROSCOE STLake View47Completed12 daysInternetCity 311
2/10/20261350 W BYRON STLake View46Completed1 dayInternetCity 311
6/23/20263453 N MARSHFIELD AVELake View47Completed2 daysPhone CallCity 311
6/23/20263455 N MARSHFIELD AVELake View47Completed2 daysAlderman's OfficeCity 311
6/23/20261722 W BELLE PLAINE AVELake View47Completed2 daysAlderman's OfficeCity 311
10/20/2025629 W BUCKINGHAM PLLake View44Completed3 daysAlderman's OfficeCity 311
6/16/20261228 W GEORGE STLake View32Completed6 daysInternetCity 311
6/24/2026720 W OAKDALE AVELake View44Completed1 dayInternetCity 311
6/24/20263213 N WILTON AVELake View44Completed1 dayMobile DeviceCity 311
6/16/20261234 W GEORGE STLake View32Completed6 daysInternetCity 311
6/1/20263056 N RACINE AVELake View32Completed3 daysPhone CallCity 311
6/16/20261228 W DIVERSEY AVELake View32Completed6 daysMobile DeviceCity 311
7/20/20263037 N SOUTHPORT AVELake View32Completed9 daysInternetCity 311
6/15/20261658 W BARRY AVELake View32Completed7 daysPhone CallCity 311
10/20/20253812 N CLARK STLake View44Completed3 daysPhone CallCity 311
10/20/20251107 W ADDISON STLake View44Completed3 daysInternetCity 311
2/12/20261120 W GEORGE STLake View44Completed1 dayInternetCity 311
2/12/20263519 N FREMONT STLake View44Completed1 dayPhone CallCity 311
10/19/20251321 W HENDERSON STLake View44Completed4 daysPhone CallCity 311
6/18/20261230 W DIVERSEY PKWYLake View32Completed4 daysMobile DeviceCity 311
2/12/20263549 N RACINE AVELake View44Completed0 daysInternetCity 311
6/18/20261416 W DIVERSEY AVELake View32Completed4 daysPhone CallCity 311
2/15/20263729 N MARSHFIELD AVELake View47Completed1 dayInternetCity 311
Page 2070 of 2,413
PreviousNext