RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4119 locations in the last 30 days (4299 reports) · Last sighting 19 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/11/20255612 S NARRAGANSETT AVEGarfield Ridge13Completed10 daysInternetCity 311
9/15/20254048 N AVERS AVEIrving Park45Completed10 daysPhone CallCity 311
9/8/20252439 W EASTWOOD AVELincoln Square47Completed10 daysPhone CallCity 311
7/12/20262200 W EASTWOOD AVELincoln Square47Completed10 daysMobile DeviceCity 311
9/14/20257822 W ARDMORE AVENorwood Park41Completed10 daysInternetCity 311
8/17/20251769 W GREENLEAF AVERogers Park49Completed10 daysInternetCity 311
9/12/20254550 N MILWAUKEE AVEPortage Park45Completed10 daysAlderman's OfficeCity 311
8/29/20252338 N MONITOR AVEBelmont Cragin36Completed10 daysPhone CallCity 311
9/2/202518 E 99TH PLRoseland9Completed10 daysPhone CallCity 311
9/14/2026841 W OAKDALE AVELake View44Completed10 daysPhone CallCity 311
9/16/20254417 N SAWYER AVEAlbany Park33Completed10 daysInternetCity 311
9/1/20255045 N NORTHWEST HWYJefferson Park45Completed10 daysInternetCity 311
8/3/20261532 W NELSON STLake View32Completed10 daysMobile DeviceCity 311
9/1/202612439 S UNION AVEWest Pullman9Completed10 daysPhone CallCity 311
10/10/20251103 N RIDGEWAY AVEHumboldt Park27Completed10 daysMobile DeviceCity 311
9/1/202610509 S LA SALLE STRoseland9Completed10 daysPhone CallCity 311
10/24/20265332 S SPRINGFIELD AVEWest Elsdon23Completed10 daysMobile DeviceCity 311
9/7/20262734 W FARRAGUT AVELincoln Square40Completed10 daysInternetCity 311
7/31/20268202 S ESCANABA AVESouth Chicago7Completed10 daysInternetCity 311
9/4/20266560 N HARLEM AVEEdison Park41Completed10 daysInternetCity 311
8/18/20256018 N DAMEN AVEWest Ridge40Completed10 daysInternetCity 311
9/9/20256636 S MAY STEnglewood16Completed10 daysPhone CallCity 311
10/25/202610 E CHICAGO AVENear North Side42Completed10 daysMobile DeviceCity 311
8/4/2026314 W 107TH PLRoseland21Completed10 daysInternetCity 311
8/23/20262019 S THROOP STLower West Side25Completed10 daysInternetCity 311
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