RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4114 locations in the last 30 days (4296 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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/19/20258500 S KNOX AVEAshburn18Completed3 daysPhone CallCity 311
8/19/20258715 S HERMITAGE AVEAuburn Gresham18Completed0 daysInternetCity 311
7/11/20263834 W 83RD STAshburn18Completed9 daysMobile DeviceCity 311
12/19/20258128 S CHRISTIANA AVEAshburn18Completed3 daysPhone CallCity 311
10/24/20268447 S HOYNE AVEAuburn Gresham18Completed12 daysInternetCity 311
10/5/20253713 W 83RD PLAshburn18Completed4 daysInternetCity 311
8/11/20257218 S FAIRFIELD AVEChicago Lawn18Completed4 daysPhone CallCity 311
12/26/20253454 W 85TH PLAshburn18Completed0 daysPhone CallCity 311
9/12/20263805 W 86TH PLAshburn18Completed13 daysPhone CallCity 311
7/2/20263227 W 83RD STAshburn18Completed7 daysPhone CallCity 311
12/7/20253851 W 83RD STAshburn18Completed1 dayInternetCity 311
12/4/20254217 W 78TH STAshburn18Completed1 dayAlderman's OfficeCity 311
7/16/20263815 W 84TH STAshburn18Completed5 daysMobile DeviceCity 311
9/11/20268001 S KEDZIE AVEAshburn18Completed13 daysPhone CallCity 311
12/7/20253817 W 82ND STAshburn18Completed1 dayInternetCity 311
7/16/20268616 S KEDVALE AVEAshburn18Completed4 daysMobile DeviceCity 311
8/19/20254114 W 78TH STAshburn18Completed10 daysAlderman's OfficeCity 311
8/19/20258850 S JUSTINE STAuburn Gresham18Completed8 daysAlderman's OfficeCity 311
12/17/20251736 W 89TH STAuburn Gresham18Completed1 dayInternetCity 311
8/14/20253551 W 83RD PLAshburn18Completed5 daysPhone CallCity 311
10/15/20268116 S CLAREMONT AVEAshburn18Completed8 daysMobile DeviceCity 311
8/3/20267900 S CALIFORNIA AVEAshburn18Completed11 daysPhone CallCity 311
8/14/20253551 W 83RD PLAshburn18Completed5 daysMobile DeviceCity 311
10/17/20268000 S ALBANY AVEAshburn18Completed6 daysPhone CallCity 311
9/8/20262852 W 83RD PLAshburn18Completed16 daysAlderman's OfficeCity 311
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