RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4200 locations in the last 30 days (4384 reports) · Last sighting 17 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
10/16/20264006 N MCVICKER AVEPortage Park38Completed12 daysInternetCity 311
10/14/20264335 N MOODY AVEPortage Park38Completed14 daysMobile DeviceCity 311
11/4/20264052 N MANGO AVEPortage Park38Open—Phone CallCity 311
8/17/20254308 N MULLIGAN AVEPortage Park38Completed9 daysInternetCity 311
8/17/20254832 W WARWICK AVEPortage Park30Completed9 daysMobile DeviceCity 311
8/17/20254218 N MASON AVEPortage Park38Completed9 daysMobile DeviceCity 311
10/27/20265644 W NEWPORT AVEPortage Park30Completed10 daysInternetCity 311
10/27/20264740 N LAVERGNE AVEPortage Park45Completed14 daysInternetCity 311
8/17/20254208 N MONITOR AVEPortage Park38Completed9 daysInternetCity 311
8/13/20255225 W HENDERSON STPortage Park31Completed13 daysMobile DeviceCity 311
8/18/20255800 W CORNELIA AVEPortage Park30Completed8 daysAlderman's OfficeCity 311
8/19/20255830 W CORNELIA AVEPortage Park30Completed7 daysMobile DeviceCity 311
8/17/20255715 W DAKIN STPortage Park38Completed9 daysInternetCity 311
8/18/20255713 W EDDY STPortage Park30Completed8 daysMobile DeviceCity 311
8/17/20255942 W GRACE STPortage Park38Completed9 daysMobile DeviceCity 311
8/16/20255902 W WAVELAND AVEPortage Park38Completed10 daysInternetCity 311
10/16/20266302 W GIDDINGS STPortage Park41Completed11 daysMobile DeviceCity 311
8/11/20254509 N LAPORTE AVEPortage Park45Completed15 daysAlderman's OfficeCity 311
8/18/20254654 W ROSCOE STPortage Park30Completed8 daysAlderman's OfficeCity 311
8/22/20254500 N LAPORTE AVEPortage Park45Completed4 daysAlderman's OfficeCity 311
8/18/20255515 W IRVING PARK RDPortage Park30Completed8 daysAlderman's OfficeCity 311
8/14/20255024 W SUNNYSIDE AVEPortage Park45Completed12 daysAlderman's OfficeCity 311
8/18/20255858 W NEWPORT AVEPortage Park30Completed8 daysInternetCity 311
8/22/20255818 W NEWPORT AVEPortage Park30Completed4 daysMobile DeviceCity 311
8/16/20255318 W SCHOOL STPortage Park31Completed11 daysPhone CallCity 311
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