RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3974 locations in the last 30 days (4152 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 — 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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/1/20252711 N MAJOR AVEBelmont Cragin30Completed13 daysMobile DeviceCity 311
9/1/20253602 W WOLFRAM STAvondale35Completed4 daysInternetCity 311
9/1/20252037 N LA CROSSE AVEBelmont Cragin26Completed13 daysMobile DeviceCity 311
9/1/20252507 N TRIPP AVEHermosa31Completed13 daysMobile DeviceCity 311
9/1/20253059 N GRESHAM AVEAvondale35Completed9 daysMobile DeviceCity 311
9/1/2025424 W BELDEN AVELincoln Park43Completed11 daysPhone CallCity 311
9/1/20255619 N SPAULDING AVENorth Park39Completed9 daysInternetCity 311
9/1/20255410 W THOMAS STAustin37Completed9 daysMobile DeviceCity 311
9/1/20257710 W BELMONT AVEDunning38Completed14 daysInternetCity 311
9/1/202511926 S LASALLE STWest Pullman9Completed11 daysInternetCity 311
9/1/20252431 W WARNER AVENorth Center47Completed9 daysInternetCity 311
9/1/20254022 N AVERS AVEIrving Park45Completed11 daysMobile DeviceCity 311
9/1/20253930 W 84TH PLAshburn18Completed10 daysMobile DeviceCity 311
9/1/20255605 N NAGLE AVENorwood Park45Completed11 daysMobile DeviceCity 311
9/1/20252800 S SAINT LOUIS AVESouth Lawndale22Completed11 daysInternetCity 311
9/1/20259906 S DR MARTIN LUTHER KING JR DRRoseland9Completed9 daysInternetCity 311
9/1/2025845 N MOZART STWest Town36Completed11 daysMobile DeviceCity 311
9/1/20251851 W LARCHMONT AVENorth Center47Completed11 daysMobile DeviceCity 311
9/1/20254640 S SPRINGFIELD AVEArcher Heights14Completed10 daysInternetCity 311
9/1/20253741 W 85TH STAshburn18Completed10 daysMobile DeviceCity 311
9/1/20251611 W FARGO AVERogers Park49Completed11 daysInternetCity 311
9/1/20253456 N CICERO AVEPortage Park31Completed10 daysInternetCity 311
9/1/20255530 S NEW ENGLAND AVEGarfield Ridge13Completed11 daysMobile DeviceCity 311
9/1/20253919 N TROY STIrving Park33Completed7 daysInternetCity 311
9/1/20252241 W RACE AVEWest Town36Completed11 daysMobile DeviceCity 311
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