RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4016 locations in the last 30 days (4189 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/20/20254862 S LAWNDALE AVEArcher Heights14Completed13 daysInternetCity 311
9/20/20255483 S LAKE SHORE DR NBHyde Park5Completed4 daysMobile DeviceCity 311
9/20/2025927 N DAMEN AVEWest Town36Completed3 daysPhone CallCity 311
9/20/2025934 W CUYLER AVEUptown46Completed6 daysInternetCity 311
9/20/20253453 N MARSHFIELD AVELake View47Completed12 daysPhone CallCity 311
9/20/20253447 N MARSHFIELD AVELake View47Completed12 daysPhone CallCity 311
9/20/20253175 N HUDSON AVELake View44Completed10 daysInternetCity 311
9/20/20253449 N MARSHFIELD AVELake View47Completed12 daysPhone CallCity 311
9/20/20257622 N GREENVIEW AVERogers Park49Completed6 daysPhone CallCity 311
9/20/20251525 W BIRCHWOOD AVERogers Park49Completed11 daysPhone CallCity 311
9/20/20252904 W LYNDALE STLogan Square1Completed11 daysInternetCity 311
9/20/20251500 N LAVERGNE AVEAustin37Completed10 daysMobile DeviceCity 311
9/20/20252252 S HAMLIN AVESouth Lawndale22Completed5 daysMobile DeviceCity 311
9/20/20252406 S MILLARD AVESouth Lawndale22Completed5 daysMobile DeviceCity 311
9/20/20255310 N ASHLAND AVEEdgewater40Completed12 daysInternetCity 311
9/20/20251906 N KILDARE AVEHermosa26Completed11 daysMobile DeviceCity 311
9/20/20253028 S BROAD STBridgeport11Completed11 daysInternetCity 311
9/20/20252242 S PRINCETON AVEArmour Square11Completed11 daysMobile DeviceCity 311
9/20/20252022 W ROSCOE STNorth Center32Completed10 daysInternetCity 311
9/20/20253415 N SEELEY AVENorth Center32Completed6 daysInternetCity 311
9/20/2025531 N RACINE AVEWest Town27Completed9 daysInternetCity 311
9/20/20251256 E 95TH PLPullman8Completed9 daysPhone CallCity 311
9/20/20255316 S LOREL AVEGarfield Ridge23Completed10 daysPhone CallCity 311
9/20/20258019 S CARPENTER STAuburn Gresham17Completed10 daysMobile DeviceCity 311
9/20/2025110 E BALBO DRLoop42Completed6 daysInternetCity 311
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