RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4219 locations in the last 30 days (4405 reports) · Last sighting 20 hours 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 — 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20263053 N ELBRIDGEAvondale35Completed11 daysSalesforce Mobile AppCity 311
11/2/20263053 N DRAKE AVEAvondale35Open—Alderman's OfficeCity 311
9/28/20263052 W PALMER STLogan Square1Completed11 daysMobile DeviceCity 311
8/8/20263052 W FLOURNOY STEast Garfield Park28Completed2 daysInternetCity 311
7/19/20263052 W FLOURNOY STEast Garfield Park28Completed9 daysInternetCity 311
12/3/20253052 W FLOURNOY STEast Garfield Park28Completed0 daysInternetCity 311
8/30/20253052 W FLOURNOY STEast Garfield Park28Completed10 daysInternetCity 311
8/27/20253052 W CERMAK RDSouth Lawndale24Completed13 daysPhone CallCity 311
2/24/20263052 W CERMAK RDSouth Lawndale24Completed1 dayMobile DeviceCity 311
10/24/20253052 W CERMAK RDSouth Lawndale24Completed5 daysMobile DeviceCity 311
5/31/20263052 W CERMAK RDSouth Lawndale24Completed3 daysMobile DeviceCity 311
7/19/20263052 W CERMAK RDSouth Lawndale24Completed8 daysPhone CallCity 311
11/9/20263052 W 44TH STBrighton Park12Open—InternetCity 311
8/6/20253052 S HARDING AVESouth Lawndale22Completed8 daysAlderman's OfficeCity 311
10/20/20263052 N NEVA AVEMontclare29Completed9 daysMobile DeviceCity 311
8/19/20253052 N MONTICELLO AVEAvondale35Completed10 daysPhone CallCity 311
7/6/20263052 N KOSTNER AVEHermosa31Completed1 dayMobile DeviceCity 311
11/4/20253052 N CALIFORNIA AVEAvondale35Completed2 daysInternetCity 311
6/18/20263051 W GRACE STIrving Park35Completed4 daysPhone CallCity 311
7/29/20263051 S LYMAN STBridgeport11Completed12 daysPhone CallCity 311
6/15/20263051 N SPAULDING AVEAvondale35Completed3 daysInternetCity 311
6/3/20263051 N NORDICA AVEMontclare29Completed6 daysMobile DeviceCity 311
3/6/20263051 N NORDICA AVEMontclare29Completed3 daysMobile DeviceCity 311
11/13/20253051 N NORDICA AVEMontclare29Completed1 dayMobile DeviceCity 311
8/1/20253051 N NORDICA AVEMontclare29Completed7 daysMobile DeviceCity 311
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