RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4017 locations in the last 30 days (4190 reports) · Last sighting yesterday

📰 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/15/20258701 W HIGGINS RDO'Hare41Completed10 daysInternetCity 311
6/28/20265307 N NEWCASTLE AVENorwood Park41Completed4 daysMobile DeviceCity 311
11/21/20256618 N NORTHWEST HWYEdison Park41Completed3 daysPhone CallCity 311
6/27/20266001 W GUNNISON STPortage Park41Completed5 daysMobile DeviceCity 311
10/31/20257740 W COLUMBIA AVEEdison Park41Completed4 daysAlderman's OfficeCity 311
9/13/20254900 N MONT CLARE AVENorwood Park41Completed11 daysPhone CallCity 311
9/17/20256560 N NORTHWEST HWYEdison Park41Completed8 daysInternetCity 311
10/24/20256870 N NORTHWEST HWYEdison Park41Completed5 daysPhone CallCity 311
10/28/20254845 N MULLIGAN AVEJefferson Park41Completed2 daysPhone CallCity 311
8/30/20265746 N ODELL AVENorwood Park41Completed11 daysMobile DeviceCity 311
10/28/20256555 N NORTHWEST HWYEdison Park41Completed2 daysInternetCity 311
4/3/20265106 N SAYRE AVENorwood Park41Completed3 daysInternetCity 311
11/2/20255500 N MULLIGAN AVEJefferson Park41Completed2 daysInternetCity 311
3/16/20267230 W SEMINOLE STNorwood Park41Completed1 dayPhone CallCity 311
3/8/2026675 N FRANKLIN STNear North Side42Completed4 daysMobile DeviceCity 311
11/6/2025130 E MONROE DRLoop42Completed4 daysInternetCity 311
11/9/202525 W GRAND AVENear North Side42Completed1 dayInternetCity 311
9/19/2025806 N RUSH STNear North Side42Completed0 daysInternetCity 311
9/14/2025699 S MCCORMICK PL BUSWAYLoop42Completed2 daysInternetCity 311
11/17/202518 W ERIE STNear North Side42Completed1 dayMobile DeviceCity 311
9/20/2025221 E IDA B WELLS DRLoop42Completed6 daysInternetCity 311
8/13/202557 W ERIE STNear North Side42Completed1 dayPhone CallCity 311
2/22/2026559 S CONGRESS PLAZA DRLoop42Completed2 daysInternetCity 311
2/22/202649 E CEDAR STNear North Side42Completed2 daysPhone CallCity 311
11/9/202537 W PEARSON STNear North Side42Completed1 dayInternetCity 311
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