RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4190 locations in the last 30 days (4370 reports) · Last sighting yesterday

📰 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/19/20263212 W WABANSIA AVEHumboldt Park26Completed3 daysMobile DeviceCity 311
6/19/20265548 N WAYNE AVEEdgewater48Completed5 daysInternetCity 311
6/19/20264325 N TROY STIrving Park33Completed3 daysInternetCity 311
6/19/2026910 N WINCHESTER AVEWest Town36Completed5 daysInternetCity 311
6/19/20264448 S KARLOV AVEArcher Heights14Completed3 daysPhone CallCity 311
6/19/20265510 N MULLIGAN AVEJefferson Park41Completed4 daysInternetCity 311
6/19/20265511 N MULLIGAN AVEJefferson Park45Completed4 daysInternetCity 311
6/19/20262717 W CARMEN AVELincoln Square40Completed5 daysMobile DeviceCity 311
6/19/20263026 W CHASE AVEWest Ridge50Completed4 daysPhone CallCity 311
6/19/20265713 W PATTERSON AVEPortage Park38Completed5 daysMobile DeviceCity 311
6/19/20261443 W WRIGHTWOOD AVELincoln Park32Completed5 daysInternetCity 311
6/19/20266301 N LA CROSSE AVEForest Glen39Completed3 daysMobile DeviceCity 311
6/19/20265218 W WASHINGTON BLVDAustin37Completed4 daysMobile DeviceCity 311
6/19/20264421 N WINCHESTER AVELincoln Square47Completed4 daysInternetCity 311
6/19/20264836 N ALBANY AVEAlbany Park33Completed3 daysInternetCity 311
6/19/2026555 W 87TH STAuburn Gresham21Completed4 daysInternetCity 311
6/19/20265641 N MANGO AVEJefferson Park45Completed4 daysMobile DeviceCity 311
6/19/20265137 S HARPER AVEHyde Park4Completed4 daysInternetCity 311
6/19/20265136 S MILLARD AVEWest Elsdon23Completed3 daysInternetCity 311
6/19/20264556 W DEMING PLHermosa31Completed5 daysPhone CallCity 311
6/19/20262531 N CALIFORNIA AVELogan Square1Completed3 daysMobile DeviceCity 311
6/19/20265128 N LOTUS AVEJefferson Park45Completed4 daysMobile DeviceCity 311
6/19/20265246 W WINONA STJefferson Park45Completed6 daysInternetCity 311
6/19/20263012 W CHASE AVEWest Ridge50Completed4 daysPhone CallCity 311
6/19/20262742 W AUGUSTA BLVDWest Town26Completed5 daysInternetCity 311
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