RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4123 locations in the last 30 days (4307 reports) · Last sighting 23 hours ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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
5/14/20266830 S MARSHFIELD AVEWest Englewood17Completed4 daysInternetCity 311
5/14/20266824 S MARSHFIELD AVEWest Englewood17Completed4 daysInternetCity 311
5/14/20266119 W PATTERSON AVEDunning38Completed1 dayMobile DeviceCity 311
5/14/20263112 S CANAL STBridgeport11Completed1 dayInternetCity 311
5/14/20262727 S WESTERN AVELower West Side12Completed6 daysInternetCity 311
5/14/20261739 W NEWPORT AVELake View47Completed1 dayInternetCity 311
5/14/20264744 N CAMPBELL AVELincoln Square40Completed1 dayPhone CallCity 311
5/14/20262508 W BIRCHWOOD AVEWest Ridge50Completed1 dayPhone CallCity 311
5/14/20262729 N WESTERN AVELogan Square32Completed4 daysInternetCity 311
5/14/20263612 S EMERALD AVEBridgeport11Completed1 dayPhone CallCity 311
5/14/20265955 S NATOMA AVEClearing13Completed1 dayPhone CallCity 311
5/14/20262019 N KARLOV AVEHermosa26Completed0 daysPhone CallCity 311
5/14/20261938 N SEMINARY AVELincoln Park43Completed4 daysMobile DeviceCity 311
5/14/20262713 S AVERS AVESouth Lawndale22Completed4 daysAlderman's OfficeCity 311
5/14/20262711 S AVERS AVESouth Lawndale22Completed4 daysPhone CallCity 311
5/14/20262700 S AVERS AVESouth Lawndale22Completed4 daysAlderman's OfficeCity 311
5/14/20268122 S PEORIA STAuburn Gresham17Completed1 dayAlderman's OfficeCity 311
5/14/20263900 W 82ND STAshburn18Completed5 daysAlderman's OfficeCity 311
5/14/20261449 E 67TH PLSouth Shore5Completed1 dayPhone CallCity 311
5/14/20267155 S WASHTENAW AVEChicago Lawn17Completed1 dayPhone CallCity 311
5/14/20263900 W 82ND PLAshburn18Completed6 daysPhone CallCity 311
5/14/202610903 S HALE AVEMorgan Park19Completed4 daysPhone CallCity 311
5/14/20263154 N HUDSON AVELake View44Completed4 daysPhone CallCity 311
5/14/202612721 S MORGAN STWest Pullman9Completed6 daysMobile DeviceCity 311
5/14/202655 W ILLINOIS STNear North Side42Completed4 daysInternetCity 311
Page 1090 of 2,378
PreviousNext