RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4071 locations in the last 30 days (4252 reports) · Last sighting 11 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
9/25/2025423 E 42ND STGrand Boulevard3Completed7 daysInternetCity 311
9/25/20251830 W PRATT AVERogers Park49Completed1 dayPhone CallCity 311
9/25/20252719 W CHASE AVEWest Ridge50Completed1 dayPhone CallCity 311
9/25/2025924 W CULLOM AVEUptown46Completed1 dayPhone CallCity 311
9/25/20256270 N CICERO AVEForest Glen39Completed1 dayPhone CallCity 311
9/25/20254435 N KEOKUK AVEIrving Park39Completed1 dayPhone CallCity 311
9/25/20252511 W WALTON STWest Town36Completed1 dayPhone CallCity 311
9/25/20252240 W IOWA STWest Town36Completed1 dayPhone CallCity 311
9/25/20252053 N KEELER AVEHermosa35Completed8 daysPhone CallCity 311
9/25/20259358 S LAFLIN STWashington Heights21Completed8 daysMobile DeviceCity 311
9/25/20253658 N CHRISTIANA AVEIrving Park35Completed1 dayPhone CallCity 311
9/25/20253806 N SAWYER AVEIrving Park33Completed1 dayPhone CallCity 311
9/25/20254728 N SACRAMENTO AVEAlbany Park33Completed7 daysPhone CallCity 311
9/25/20253811 W 110TH PLMount Greenwood19Completed8 daysPhone CallCity 311
9/25/20251308 N RIDGEWAY AVEHumboldt Park36Completed1 dayPhone CallCity 311
9/25/202510544 S CHRISTIANA AVEMount Greenwood19Completed8 daysPhone CallCity 311
9/25/20252104 N HUDSON AVELincoln Park43Completed11 daysInternetCity 311
9/25/20252019 N MOZART STLogan Square1Completed6 daysMobile DeviceCity 311
9/25/20251732 N CENTRAL PARK AVEHumboldt Park26Completed8 daysPhone CallCity 311
9/25/20251470 S LAKE SHORE DR SBNear South Side3Completed7 daysInternetCity 311
9/25/2025800 S KEDVALE AVEWest Garfield Park24Completed4 daysPhone CallCity 311
9/25/20251222 W DIVERSEY AVELake View32Completed11 daysInternetCity 311
9/25/2025132 E 23RD STNear South Side3Completed7 daysInternetCity 311
9/25/20253707 N NARRAGANSETTDunning38Completed8 daysSalesforce Mobile AppCity 311
9/25/2025938 W LELAND AVEUptown46Completed8 daysMobile DeviceCity 311
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