RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4182 locations in the last 30 days (4366 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/29/20263505 N ORIOLE AVEDunning38Completed1 dayMobile DeviceCity 311
3/29/20264445 N CAMPBELL AVELincoln Square47Completed1 dayInternetCity 311
3/29/20261912 S MAY STLower West Side25Completed2 daysInternetCity 311
3/29/20263703 W THOMAS STHumboldt Park27Completed2 daysInternetCity 311
3/29/20261401 E HYDE PARK BLVDHyde Park4Completed2 daysMobile DeviceCity 311
3/29/2026821 W WILLOW STLincoln Park43Completed2 daysMobile DeviceCity 311
3/29/20262426 W MCLEAN AVELogan Square1Completed1 dayInternetCity 311
3/29/20269959 S ESCANABA AVESouth Deering10Completed2 daysPhone CallCity 311
3/29/20263157 W DEVON AVEWest Ridge50Completed1 dayInternetCity 311
3/29/20267930 S EVANS AVEChatham6Completed2 daysPhone CallCity 311
3/29/20267931 S EVANS AVEChatham6Completed2 daysPhone CallCity 311
3/29/20264917 N MILWAUKEE AVEJefferson Park45Completed1 dayInternetCity 311
3/29/20261905 N KOSTNER AVEHermosa26Completed2 daysInternetCity 311
3/29/2026126 N LARAMIE AVEAustin37Completed1 dayMobile DeviceCity 311
3/29/2026130 N LARAMIE AVEAustin37Completed1 dayMobile DeviceCity 311
3/29/2026128 N LARAMIE AVEAustin37Completed1 dayMobile DeviceCity 311
3/29/20263609 W 55TH STWest Elsdon23Completed2 daysPhone CallCity 311
3/29/2026131 N LARAMIE AVEAustin28Completed1 dayMobile DeviceCity 311
3/29/2026160 N LAPORTE AVEAustin28Completed1 dayPhone CallCity 311
3/29/2026157 N LAPORTE AVEAustin28Completed1 dayPhone CallCity 311
3/29/20261034 W OAKDALE AVELake View44Completed2 daysMobile DeviceCity 311
3/29/20265547 N ASHLAND AVEEdgewater40Completed1 dayInternetCity 311
3/29/20267510 N WOLCOTT AVERogers Park49Completed1 dayInternetCity 311
3/29/20264341 N MELVINA AVEPortage Park38Completed1 dayMobile DeviceCity 311
3/29/2026832 N MARSHFIELD AVEWest Town1Completed1 dayMobile DeviceCity 311
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