RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4261 locations in the last 30 days (4450 reports) · Last sighting 22 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
10/31/20261922 N HALSTED STLincoln Park43Open—Phone CallCity 311
10/31/20269760 S DOBSON AVEPullman8Open—Mobile DeviceCity 311
10/31/20264321 N ALBANY AVEIrving Park33Open—InternetCity 311
10/31/20263328 N ASHLAND AVELake View32Open—Mobile DeviceCity 311
10/31/2026677 W WRIGHTWOOD AVELincoln Park43Open—InternetCity 311
10/31/20265733 W SCHOOL STPortage Park30Open—InternetCity 311
10/31/20263114 N ODELL AVEDunning29Open—InternetCity 311
10/31/202611411 S LOWE AVERoseland21Open—Phone CallCity 311
10/31/202611409 S LOWE AVERoseland21Open—Phone CallCity 311
10/31/20265259 W ADDISON STPortage Park31Open—Mobile DeviceCity 311
10/31/20265231 S NATOMA AVEGarfield Ridge23Open—Phone CallCity 311
10/31/202627 W JACKSON BLVDLoop34Open—Phone CallCity 311
10/31/20264206 W 24TH PLSouth Lawndale22Open—InternetCity 311
10/31/20263843 N OCTAVIA AVEDunning38Open—InternetCity 311
10/31/20266828 S LAFLIN STWest Englewood17Open—Mobile DeviceCity 311
10/31/20269635 S LA SALLE STRoseland9Open—Phone CallCity 311
10/31/20266312 W GREENLEAF AVEForest Glen45Open—Phone CallCity 311
10/31/20264113 N WESTERN AVENorth Center47Open—InternetCity 311
10/31/20263054 N RACINE AVELake View32Open—Phone CallCity 311
10/31/20263079 S BONFIELD STBridgeport11Open—Phone CallCity 311
10/31/20263418 W MEDILL AVELogan Square35Open—InternetCity 311
10/31/20265642 N JERSEY AVENorth Park39Open—Mobile DeviceCity 311
10/30/20262100 W 22ND PLLower West Side25Open—InternetCity 311
10/30/20262050 W 22ND PLLower West Side25Open—InternetCity 311
10/30/20268439 S HOYNE AVEAuburn Gresham18Open—InternetCity 311
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