RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4264 locations in the last 30 days (4453 reports) · Last sighting 21 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

1,021 reports match your filters.

Clear filters
DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/31/20262928 N ALBANY AVEAvondale35Open—Phone CallCity 311
10/31/20262462 W FOSTER AVELincoln Square40Open—Mobile DeviceCity 311
10/31/20262928 N ALBANY AVEAvondale35Open—InternetCity 311
10/31/20265055 N TROY STAlbany Park33Open—Mobile DeviceCity 311
10/31/20262040 N SHEFFIELD AVELincoln Park43Open—InternetCity 311
10/31/20263435 N NEVA AVEDunning38Open—Mobile DeviceCity 311
10/31/20263943 N OCONTO AVEDunning38Open—InternetCity 311
10/31/20261827 S CHRISTIANA AVENorth Lawndale24Open—Phone CallCity 311
10/31/20265020 N ALBANY AVEAlbany Park33Open—InternetCity 311
10/31/20261753 W 89TH STAuburn Gresham18Open—Mobile DeviceCity 311
10/31/2026402 S HAMLIN BLVDWest Garfield Park28Open—Phone CallCity 311
10/31/20263857 N OTTAWA AVEDunning38Open—InternetCity 311
10/31/20261244 W DIVERSEY PKWYLake View32Open—InternetCity 311
10/31/20266204 W BERENICE AVEDunning38Open—InternetCity 311
10/31/20263542 N FREMONT STLake View44Open—Mobile DeviceCity 311
10/31/20261819 N NEWCASTLE AVEAustin29Open—InternetCity 311
10/31/20263338 N MARSHFIELD AVELake View32Open—Mobile DeviceCity 311
10/31/20264130 W OAKDALE AVEAvondale31Open—Phone CallCity 311
10/31/20262717 W BALMORAL AVELincoln Square40Open—Mobile DeviceCity 311
10/31/20264215 N BROADWAYUptown46Open—InternetCity 311
10/31/20265230 W WINNEMAC AVEJefferson Park45Open—InternetCity 311
10/31/20265106 S MOODY AVEGarfield Ridge23Open—InternetCity 311
10/31/20261750 N MOHAWK STLincoln Park43Open—InternetCity 311
10/31/20261740 N MOHAWK STLincoln Park43Open—InternetCity 311
10/31/20262250 W SUNNYSIDE AVELincoln Square47Open—Mobile DeviceCity 311
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