RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4018 locations in the last 30 days (4198 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
8/17/20263710 W 107TH STMount Greenwood19Completed9 daysPhone CallCity 311
5/30/20263710 W 104TH STMount Greenwood19Completed4 daysMobile DeviceCity 311
9/18/20253710 S HONORE STMcKinley Park12Completed11 daysInternetCity 311
10/26/20263710 S HONORE STMcKinley Park12Completed10 daysInternetCity 311
7/28/20263710 S HONORE STMcKinley Park12Completed13 daysInternetCity 311
2/21/20263710 S EMERALD AVEBridgeport11Completed3 daysInternetCity 311
7/25/20263710 N SACRAMENTO AVEIrving Park35Completed12 daysInternetCity 311
10/17/20253710 N PINE GROVE AVELake View46Completed6 daysInternetCity 311
10/15/20263710 N ODELL AVEDunning38Completed15 daysAlderman's OfficeCity 311
8/25/20263710 N KENMORE AVELake View44Completed9 daysAlderman's OfficeCity 311
4/30/20263710 N HOYNE AVENorth Center47Completed1 dayInternetCity 311
2/9/20263710 N HOYNE AVENorth Center47Completed1 dayPhone CallCity 311
9/6/20253710 N ELSTON AVEIrving Park35Completed10 daysMobile DeviceCity 311
3/26/20263710 N ASHLAND AVELake View47Completed4 daysAlderman's OfficeCity 311
8/30/20263710 N ALBANY AVEIrving Park33Completed16 daysMobile DeviceCity 311
10/28/20253709 W WABANSIA AVEHumboldt Park26Completed2 daysMobile DeviceCity 311
8/15/20263709 W ALTGELD STLogan Square35Completed16 daysMobile DeviceCity 311
6/25/20263709 W 84TH PLAshburn18Completed6 daysPhone CallCity 311
3/26/20263709 W 59TH STWest Lawn23Completed1 dayAlderman's OfficeCity 311
1/14/20263709 W 59TH PLWest Lawn23Completed1 dayPhone CallCity 311
11/1/20263709 N SACRAMENTO AVEIrving Park35Completed5 daysInternetCity 311
7/15/20263709 N OSCEOLA AVEDunning38Completed13 daysPhone CallCity 311
5/30/20263709 N OSCEOLA AVEDunning38Completed5 daysMobile DeviceCity 311
10/4/20263709 N ORIOLE AVEDunning38Completed12 daysMobile DeviceCity 311
8/28/20253709 N NOTTINGHAM AVEDunning38Completed12 daysPhone CallCity 311
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