RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4280 locations in the last 30 days (4470 reports) · Last sighting 17 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.

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DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/1/20261655 W CARMEN AVEUptown40Open—Mobile DeviceCity 311
11/1/20265310 S CENTRAL AVEGarfield Ridge23Open—InternetCity 311
11/1/20261624 N MAJOR AVEAustin29Open—Mobile DeviceCity 311
11/1/20263712 W 60TH PLWest Lawn23Open—Mobile DeviceCity 311
11/1/20263159 N CLYBOURN AVENorth Center32Open—Mobile DeviceCity 311
11/1/20263539 N KOSTNER AVEIrving Park30Open—Mobile DeviceCity 311
11/1/20263700 W POLK STEast Garfield Park24Open—Mobile DeviceCity 311
11/1/20267124 W FOSTER AVENorwood Park41Open—InternetCity 311
11/1/2026842 W BARRY AVELake View44Open—InternetCity 311
11/1/20263709 N SACRAMENTO AVEIrving Park35Open—InternetCity 311
11/1/20265411 S MERRIMAC AVEGarfield Ridge23Open—Phone CallCity 311
11/1/20261380 E 53RD STHyde Park4Open—InternetCity 311
11/1/202626 W VAN BUREN STLoop34Open—Phone CallCity 311
11/1/20261128 W DIVERSEY PKWYLake View44Open—InternetCity 311
11/1/20261440 W FARWELL AVERogers Park49Open—Mobile DeviceCity 311
11/1/20263519 N FREMONT STLake View44Open—InternetCity 311
11/1/2026846 W CORNELIA AVELake View44Open—InternetCity 311
11/1/20262429 N TRIPP AVEHermosa31Open—Mobile DeviceCity 311
11/1/20264707 N LAPORTE AVEPortage Park45Open—InternetCity 311
11/1/20262424 N KEELER AVEHermosa31Open—Mobile DeviceCity 311
11/1/20266201 S NAGLE AVEClearing13Open—InternetCity 311
11/1/20261020 W LAWRENCE AVEUptown46Open—InternetCity 311
11/1/20266440 S LAPORTE AVEClearing13Open—Mobile DeviceCity 311
11/1/20263241 W PETERSON AVENorth Park39Open—InternetCity 311
11/1/20262145 W ADDISON STNorth Center32Open—InternetCity 311
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