RatCity — Chicago Rat and Rodent Sightings Map

RatCity

0 locations in the last day · Last sighting yesterday

📰 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/19/20267010 S MERRILL AVESouth Shore5Completed2 daysInternetCity 311
10/19/20264318 W 63RD STWest Lawn13Completed14 daysInternetCity 311
10/19/20261610 W BYRON STLake View47Completed14 daysMobile DeviceCity 311
10/19/20263432 N GREENVIEW AVELake View47Completed14 daysInternetCity 311
10/19/20262899 S ARCHER AVEBridgeport11Completed14 daysInternetCity 311
10/19/20263054 N RACINE AVELake View32Completed15 daysPhone CallCity 311
10/19/20265218 S MAPLEWOOD AVEGage Park14Completed16 daysPhone CallCity 311
10/19/20264316 W HIRSCH STHumboldt Park36Completed1 dayPhone CallCity 311
10/19/2026540 N ST CLAIR STNear North Side42Completed3 daysMobile DeviceCity 311
10/19/20266213 W SCHOOL STDunning30Completed11 daysInternetCity 311
10/19/20262337 E 85TH STSouth Chicago8Completed10 daysPhone CallCity 311
10/19/20266728 S ARTESIAN AVEChicago Lawn16Completed10 daysAlderman's OfficeCity 311
10/19/20266250 N LENOX AVEForest Glen39Completed15 daysMobile DeviceCity 311
10/19/20264100 N LEAMINGTON AVEPortage Park38Completed15 daysPhone CallCity 311
10/19/20261732 N KEELER AVEHumboldt Park26Completed9 daysAlderman's OfficeCity 311
10/19/20265300 W FLETCHER STBelmont Cragin30Completed14 daysPhone CallCity 311
10/19/20261436 W MONTROSE AVEUptown47Completed14 daysPhone CallCity 311
10/19/20265412 S MARSHFIELD AVENew City16Completed10 daysPhone CallCity 311
10/19/20264814 S UNION AVENew City15Completed15 daysPhone CallCity 311
10/19/20266552 W 60TH STClearing13Completed11 daysInternetCity 311
10/19/20264255 W 21ST STNorth Lawndale24Completed15 daysPhone CallCity 311
10/19/20266149 N BROADWAYEdgewater48Completed2 daysInternetCity 311
10/19/20265654 N MENARD AVEJefferson Park45Completed9 daysInternetCity 311
10/19/20261920 W 47TH STNew City15Completed15 daysPhone CallCity 311
10/19/20263431 N HOYNE AVENorth Center32Completed15 daysInternetCity 311
Page 99 of 2,364
PreviousNext