RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4222 locations in the last 30 days (4406 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 — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/13/20264918 W NELSON STBelmont Cragin31Completed2 daysAlderman's OfficeCity 311
4/13/20267526 S PHILLIPS AVESouth Shore7Completed2 daysInternetCity 311
4/13/20263453 N DAMEN AVENorth Center32Completed1 dayInternetCity 311
4/13/2026445 W 27TH STBridgeport11Completed1 dayInternetCity 311
4/13/20261526 W CULLERTON STLower West Side25Completed1 dayPhone CallCity 311
4/13/20265839 N MULLIGAN AVENorwood Park45Completed2 daysAlderman's OfficeCity 311
4/13/20268449 S GILBERT CTAuburn Gresham21Completed2 daysPhone CallCity 311
4/13/20266251 N FAIRFIELD AVEWest Ridge50Completed3 daysPhone CallCity 311
4/13/20261656 N AVERS AVEHumboldt Park26Completed2 daysPhone CallCity 311
4/13/20264513 N LOWELL AVEIrving Park39Completed1 dayPhone CallCity 311
4/13/20263311 N SOUTHPORT AVELake View44Completed1 dayInternetCity 311
4/13/20265138 W CHICAGO AVEAustin37Completed1 dayPhone CallCity 311
4/13/20266217 S NEENAH AVEClearing13Completed1 dayAlderman's OfficeCity 311
4/13/20263239 N OSAGE AVEDunning38Completed1 dayPhone CallCity 311
4/13/2026814 N RIDGEWAY AVEHumboldt Park27Completed2 daysPhone CallCity 311
4/13/20261145 N HOYNE AVEWest Town1Completed1 dayInternetCity 311
4/13/20262612 W POTOMAC AVEWest Town26Completed2 daysPhone CallCity 311
4/13/20262453 W THOMAS STWest Town36Completed0 daysMobile DeviceCity 311
4/13/20264513 N LOWELL AVEIrving Park39Completed1 dayMobile DeviceCity 311
4/13/20264517 N LOWELL AVEIrving Park39Completed1 dayMobile DeviceCity 311
4/13/20261217 N AVERS AVEHumboldt Park36Completed1 dayMobile DeviceCity 311
4/13/202611300 S MICHIGAN AVERoseland9Completed1 dayPhone CallCity 311
4/13/20266641 S RACINE AVEEnglewood16Completed1 dayPhone CallCity 311
4/13/20266239 N FAIRFIELD AVEWest Ridge50Completed0 daysMobile DeviceCity 311
4/13/20264118 W FLETCHER STAvondale31Completed0 daysInternetCity 311
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