RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4039 locations in the last 30 days (4216 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/13/20255647 N MANGO AVEJefferson Park45Completed11 daysInternetCity 311
9/12/20261861 S MILLARD AVENorth Lawndale24Completed11 daysMobile DeviceCity 311
10/26/20262318 S KOSTNER AVENorth Lawndale22Completed11 daysAlderman's OfficeCity 311
7/25/20266100 W SCHOOL STDunning30Completed11 daysPhone CallCity 311
10/24/20263300 N SACRAMENTO AVEAvondale33Completed11 daysInternetCity 311
8/23/20251739 N NATCHEZ AVEAustin29Completed11 daysPhone CallCity 311
8/11/20255400 S WASHTENAW AVEGage Park14Completed11 daysMobile DeviceCity 311
9/6/20255768 S ARCHER AVEGarfield Ridge23Completed11 daysInternetCity 311
6/27/20269713 S LEast Side10Completed11 daysInternetCity 311
8/3/20263836 S WASHTENAW AVEBrighton Park12Completed11 daysMobile DeviceCity 311
9/8/20251925 W BALMORAL AVELincoln Square40Completed11 daysInternetCity 311
10/19/2026923 N ASHLAND AVEWest Town1Completed11 daysInternetCity 311
7/9/20261019 N FRANCISCO AVEWest Town26Completed11 daysWalk-inCity 311
8/4/20256143 W PETERSON AVENorwood Park45Completed11 daysPhone CallCity 311
9/21/20265847 S CALIFORNIA AVEGage Park15Completed11 daysPhone CallCity 311
9/11/20252137 W 72ND PLWest Englewood17Completed11 daysPhone CallCity 311
10/11/20268936 S LAFLIN STWashington Heights21Completed11 daysPhone CallCity 311
9/18/2025930 W NEWPORT AVELake View44Completed11 daysInternetCity 311
9/24/20261606 N WHIPPLE STHumboldt Park26Completed11 daysInternetCity 311
8/31/20264018 N PLAINFIELD AVEDunning38Completed11 daysPhone CallCity 311
8/4/20255454 W CORTLAND STAustin37Completed11 daysAlderman's OfficeCity 311
7/27/20265224 W 64TH PLClearing13Completed11 daysInternetCity 311
7/23/20262436 W BERWYN AVELincoln Square40Completed11 daysMobile DeviceCity 311
8/25/20251630 N TRIPP AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
10/19/2026859 N ASHLAND AVEWest Town1Completed11 daysInternetCity 311
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