RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4053 locations in the last 30 days (4233 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
8/7/20253766 W 114TH PLMount Greenwood19Completed12 daysAlderman's OfficeCity 311
11/17/20253766 N PINE GROVE AVELake View46Completed2 daysMobile DeviceCity 311
11/2/20263762 N OSCEOLA AVEDunning38Open—Mobile DeviceCity 311
7/13/20263762 N HARDING AVEIrving Park30Completed11 daysMobile DeviceCity 311
10/12/20253761 S MORGAN STBridgeport11Completed9 daysInternetCity 311
1/9/20263760 W FULLERTON AVELogan Square35Completed3 daysPhone CallCity 311
5/15/20263760 N PINE GROVE AVELake View46Completed3 daysInternetCity 311
8/2/20263760 N HARDING AVEIrving Park30Completed11 daysPhone CallCity 311
9/25/2025375 W ELM STNear North Side27Completed12 daysInternetCity 311
10/12/20263759 W RUMSEY AVEAshburn18Completed10 daysPhone CallCity 311
8/11/20253759 W IRVING PARK RDIrving Park45Completed10 daysPhone CallCity 311
10/24/20263759 W 70TH STWest Lawn23Completed13 daysMobile DeviceCity 311
10/29/20253759 W 70TH STWest Lawn23Completed1 dayAlderman's OfficeCity 311
5/21/20263759 S WELLS STArmour Square3Completed1 dayInternetCity 311
9/22/20253759 S CALIFORNIA AVEBrighton Park12Completed7 daysInternetCity 311
8/14/20263759 N NOTTINGHAM AVEDunning38Completed17 daysInternetCity 311
7/25/20253759 N KENMORE AVELake View44Completed11 daysInternetCity 311
3/8/20263759 N CALIFORNIA AVEIrving Park35Completed3 daysMobile DeviceCity 311
11/9/20253758 W SHAKESPEARE AVELogan Square35Completed1 dayMobile DeviceCity 311
9/17/20263758 W SHAKESPEARE AVELogan Square35Completed11 daysMobile DeviceCity 311
9/1/20263758 W EDDY STAvondale30Completed12 daysMobile DeviceCity 311
3/25/20263758 W 70TH STWest Lawn23Completed1 dayPhone CallCity 311
6/10/20263758 S UNION AVEBridgeport11Completed1 dayAlderman's OfficeCity 311
10/1/20253757 W 85TH PLAshburn18Completed8 daysMobile DeviceCity 311
3/17/20263757 W 34TH STSouth Lawndale22Completed2 daysPhone CallCity 311
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