RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4020 locations in the last 30 days (4200 reports) · Last sighting 2 days 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/29/20267649 W GREGORY STNorwood Park41Completed5 daysPhone CallCity 311
4/29/20265314 S MOBILE AVEGarfield Ridge23Completed2 daysAlderman's OfficeCity 311
4/29/20261968 W LAWRENCE AVELincoln Square47Completed2 daysAlderman's OfficeCity 311
4/29/20267800 S HONORE STAuburn Gresham17Completed2 daysPhone CallCity 311
4/29/20261240 W GRACE STLake View44Completed5 daysPhone CallCity 311
4/29/202632 W CHICAGO AVENear North Side42Completed1 dayAlderman's OfficeCity 311
4/29/20268130 S JUSTINE STAuburn Gresham17Completed2 daysPhone CallCity 311
4/29/2026116 E 90TH STChatham6Completed1 dayMobile DeviceCity 311
4/29/20261407 W SUPERIOR STWest Town27Completed2 daysPhone CallCity 311
4/29/20266749 S ADA STWest Englewood17Completed2 daysPhone CallCity 311
4/29/2026717 N CHRISTIANA AVEHumboldt Park27Completed2 daysInternetCity 311
4/29/20263244 N NATCHEZ AVEDunning38Completed2 daysPhone CallCity 311
4/29/2026434 E 42ND PLGrand Boulevard3Completed6 daysInternetCity 311
4/29/2026720 E 92ND PLChatham8Completed2 daysPhone CallCity 311
4/29/20265046 N MASON AVEJefferson Park45Completed5 daysMobile DeviceCity 311
4/29/20263100 N OCTAVIA AVEDunning29Completed2 daysAlderman's OfficeCity 311
4/29/20265103 S RICHMOND STGage Park14Completed5 daysAlderman's OfficeCity 311
4/29/20264842 W HARRISON STAustin29Completed2 daysPhone CallCity 311
4/29/202610509 S CHRISTIANA AVEMount Greenwood19Completed1 dayPhone CallCity 311
4/29/20269654 S EGGLESTON AVEWashington Heights9Completed2 daysPhone CallCity 311
4/29/20264932 W LAWRENCE AVEForest Glen45Completed5 daysInternetCity 311
4/29/20266545 N CALIFORNIA AVEWest Ridge50Completed2 daysMobile DeviceCity 311
4/29/20265229 W CORNELIA AVEPortage Park31Completed5 daysPhone CallCity 311
4/29/2026744 W CORNELIA AVELake View46Completed1 dayInternetCity 311
4/29/20264336 W MAYPOLE AVEWest Garfield Park28Completed2 daysPhone CallCity 311
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