RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4356 locations in the last 30 days (4547 reports) · Last sighting 22 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 — 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

58,858 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/17/20257842 W BERWYN AVENorwood Park41Completed8 daysInternetCity 311
5/18/20265049 N WINCHESTER AVELincoln Square40Completed8 daysMobile DeviceCity 311
6/9/20267323 N DAMEN AVERogers Park49Completed8 daysPhone CallCity 311
9/4/20251145 N AVERS AVEHumboldt Park27Completed8 daysInternetCity 311
7/28/2025466 W 126TH STWest Pullman9Completed8 daysAlderman's OfficeCity 311
9/30/2025646 W FULLERTON AVELincoln Park43Completed8 daysAlderman's OfficeCity 311
7/15/20261416 W ERIE STWest Town27Completed8 daysMobile DeviceCity 311
8/3/20251442 W BIRCHWOOD AVERogers Park49Completed8 daysPhone CallCity 311
7/16/20262244 W CARMEN AVELincoln Square40Completed8 daysMobile DeviceCity 311
9/29/20258318 S OGLESBY AVESouth Chicago7Completed8 daysPhone CallCity 311
9/14/20252309 W ADDISON STNorth Center32Completed8 daysInternetCity 311
10/1/20261834 W WASHINGTON BLVDNear West Side27Completed8 daysInternetCity 311
9/6/20262547 W 118TH PLMorgan Park19Completed8 daysMobile DeviceCity 311
8/5/20251822 N MONITOR AVEAustin29Completed8 daysPhone CallCity 311
7/30/20256316 N CENTRAL PARK AVENorth Park50Completed8 daysPhone CallCity 311
8/6/20266639 N MAPLEWOOD AVEWest Ridge50Completed8 daysPhone CallCity 311
8/27/20264511 W JACKSON BLVDWest Garfield Park28Completed8 daysPhone CallCity 311
9/22/20252141 N HOYNE AVELogan Square32Completed8 daysPhone CallCity 311
8/19/20258222 S HERMITAGE AVEAuburn Gresham17Completed8 daysPhone CallCity 311
7/24/20255300 N MOODY AVEJefferson Park45Completed8 daysAlderman's OfficeCity 311
7/9/20263429 S HALSTED STBridgeport11Completed8 daysAlderman's OfficeCity 311
7/8/20265758 W EDDY STPortage Park30Completed8 daysInternetCity 311
8/12/20253631 W 69TH PLWest Lawn23Completed8 daysPhone CallCity 311
10/1/20253535 N RETA AVELake View44Completed8 daysInternetCity 311
10/21/20261252 E 95TH PLPullman8Completed8 daysPhone CallCity 311
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