RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4132 locations in the last 30 days (4314 reports) · Last sighting 23 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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/10/20264113 N WESTERN AVENorth Center47Completed2 daysInternetCity 311
1/10/20263932 N NOTTINGHAM AVEDunning38Completed2 daysInternetCity 311
1/10/20262837 N LOTUS AVEBelmont Cragin31Completed2 daysInternetCity 311
1/10/20265317 S LONG AVEGarfield Ridge23Completed2 daysPhone CallCity 311
1/10/20266708 N ROCKWELL STWest Ridge50Completed3 daysMobile DeviceCity 311
1/10/20269001 S BISHOP STWashington Heights21Completed2 daysMobile DeviceCity 311
1/10/20263546 W WABANSIA AVEHumboldt Park26Completed2 daysInternetCity 311
1/10/20262020 N MOHAWK STLincoln Park43Completed3 daysMobile DeviceCity 311
1/10/20264354 W SCHUBERT AVEHermosa31Completed3 daysInternetCity 311
1/10/20265138 S MILLARD AVEWest Elsdon23Completed2 daysInternetCity 311
1/10/20265136 S MILLARD AVEWest Elsdon23Completed2 daysInternetCity 311
1/10/20265137 S LAWNDALE AVEWest Elsdon23Completed2 daysInternetCity 311
1/10/20261472 W 72ND STWest Englewood17Completed2 daysInternetCity 311
1/10/20266017 N LEGETT AVEForest Glen39Completed2 daysMobile DeviceCity 311
1/10/20261411 N PARKSIDE AVEAustin29Completed3 daysInternetCity 311
1/10/2026612 N WOOD STWest Town36Completed2 daysInternetCity 311
1/10/2026304 W 31ST STArmour Square11Completed2 daysPhone CallCity 311
1/10/20268100 S LAFAYETTE AVEChatham6Completed2 daysInternetCity 311
1/10/20265042 N MANGO AVEJefferson Park45Completed3 daysInternetCity 311
1/10/20267649 S MORGAN STAuburn Gresham17Completed2 daysInternetCity 311
1/10/20265433 N CHRISTIANA AVENorth Park39Completed2 daysMobile DeviceCity 311
1/10/20262940 N SEELEY AVENorth Center32Completed3 daysInternetCity 311
1/10/20263815 N PAULINA STLake View47Completed2 daysInternetCity 311
1/10/20262700 S PRINCETON AVEArmour Square11Completed2 daysInternetCity 311
1/10/20263610 W BELLE PLAINE AVEIrving Park33Completed2 daysMobile DeviceCity 311
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