RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4261 locations in the last 30 days (4447 reports) · Last sighting 13 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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/4/20263915 N CHRISTIANA AVEIrving Park33Completed1 dayInternetCity 311
9/15/20254125 W MELROSE STIrving Park30Completed10 daysMobile DeviceCity 311
3/4/20263675 N ELSTON AVEIrving Park33Completed1 dayInternetCity 311
3/4/20264144 W HENDERSON STIrving Park30Completed1 dayInternetCity 311
9/4/20253945 N SPRINGFIELD AVEIrving Park45Completed13 daysInternetCity 311
9/5/20253683 N ELSTON AVEIrving Park33Completed11 daysInternetCity 311
11/14/20254109 W NEWPORT AVEIrving Park30Completed3 daysPhone CallCity 311
4/8/20264128 W SCHOOL STIrving Park30Completed1 dayMobile DeviceCity 311
9/15/20253846 N TRIPP AVEIrving Park30Completed10 daysInternetCity 311
9/14/20253645 N MOZART STIrving Park35Completed11 daysInternetCity 311
9/15/20253954 N FAIRFIELD AVEIrving Park35Completed10 daysAlderman's OfficeCity 311
7/31/20253756 N HARDING AVEIrving Park30Completed13 daysMobile DeviceCity 311
8/2/20254110 N MOZART STIrving Park33Completed11 daysInternetCity 311
9/15/20254050 N KILBOURN AVEIrving Park45Completed10 daysInternetCity 311
4/13/20264513 N LOWELL AVEIrving Park39Completed1 dayMobile DeviceCity 311
4/12/20264328 N FRANCISCO AVEIrving Park33Completed1 dayInternetCity 311
8/5/20263935 N SAWYER AVEIrving Park33Completed12 daysInternetCity 311
9/15/20254048 N AVERS AVEIrving Park45Completed10 daysPhone CallCity 311
11/14/20254255 N HAMLIN AVEIrving Park33Completed3 daysPhone CallCity 311
3/24/20264237 W ROSCOE STIrving Park30Completed1 dayInternetCity 311
11/13/20254325 N HAMLIN AVEIrving Park33Completed4 daysPhone CallCity 311
3/24/20264240 W HENDERSON STIrving Park30Completed1 dayMobile DeviceCity 311
6/26/20263730 N WHIPPLE STIrving Park35Completed10 daysMobile DeviceCity 311
9/15/20254157 N RICHMOND STIrving Park33Completed11 daysInternetCity 311
11/13/20253635 W MONTROSE AVEIrving Park33Completed4 daysPhone CallCity 311
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