RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4387 locations in the last 30 days (4581 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 — 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
4/24/20263113 W CHASE AVEWest Ridge50Completed4 daysPhone CallCity 311
3/20/20269432 S FOREST AVERoseland6Completed4 daysPhone CallCity 311
6/20/20261522 E 77TH STSouth Shore8Completed4 daysPhone CallCity 311
7/6/20262326 S WABASH AVENear South Side3Completed4 daysInternetCity 311
6/22/20261816 N CLARK STLincoln Park43Completed4 daysInternetCity 311
3/6/20262553 W 38TH STBrighton Park12Completed4 daysPhone CallCity 311
6/20/20261522 E 77TH STSouth Shore8Completed4 daysPhone CallCity 311
6/25/20263039 W AINSLIE STAlbany Park33Completed4 daysPhone CallCity 311
6/6/20265458 N CHRISTIANA AVENorth Park39Completed4 daysMobile DeviceCity 311
5/24/2026814 W ARMITAGE AVELincoln Park43Completed4 daysInternetCity 311
9/17/20262045 W MELROSE STNorth Center32Completed4 daysInternetCity 311
6/22/20264638 N LAWLER AVEPortage Park45Completed4 daysInternetCity 311
5/16/20262303 W WASHINGTON BLVDNear West Side27Completed4 daysMobile DeviceCity 311
6/28/20266919 W BERWYN AVENorwood Park41Completed4 daysInternetCity 311
1/16/20265242 W SCHOOL STPortage Park31Completed4 daysInternetCity 311
5/10/20261644 W CATALPA AVEEdgewater40Completed4 daysInternetCity 311
5/14/20264930 N BERNARD STAlbany Park33Completed4 daysMobile DeviceCity 311
2/27/2026835 W DAKIN STLake View46Completed4 daysInternetCity 311
4/17/20265648 W ROOSEVELT RDAustin29Completed4 daysAlderman's OfficeCity 311
7/24/20263331 W 84TH PLAshburn18Completed4 daysInternetCity 311
5/7/20262914 W PALMER STLogan Square1Completed4 daysMobile DeviceCity 311
3/12/20265249 N DAMEN AVELincoln Square40Completed4 daysMobile DeviceCity 311
5/11/20264516 N FRANCISCO AVEAlbany Park33Completed4 daysMobile DeviceCity 311
5/16/20262307 W WASHINGTON BLVDNear West Side27Completed4 daysMobile DeviceCity 311
10/22/20268548 S MACKINAW AVESouth Chicago10Completed4 daysPhone CallCity 311
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