RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4164 locations in the last 30 days (4350 reports) · Last sighting 19 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/14/20265530 S FAIRFIELD AVEGage Park15Completed5 daysAlderman's OfficeCity 311
6/25/20264832 W ARTHINGTON STAustin24Completed5 daysMobile DeviceCity 311
4/30/20264727 N MALDEN STUptown46Completed5 daysInternetCity 311
10/24/20253336 N HOYNE AVENorth Center32Completed5 daysPhone CallCity 311
5/14/20265526 S FAIRFIELD AVEGage Park15Completed5 daysPhone CallCity 311
8/22/20259118 S DR MARTIN LUTHER KING JR DRChatham6Completed5 daysInternetCity 311
3/4/20262655 W 53RD STGage Park14Completed5 daysAlderman's OfficeCity 311
2/27/20264037 S MAPLEWOOD AVEBrighton Park12Completed5 daysPhone CallCity 311
1/23/20266211 S MAPLEWOOD AVEChicago Lawn16Completed5 daysAlderman's OfficeCity 311
9/18/20263019 S PRINCETON AVEArmour Square11Completed5 daysPhone CallCity 311
8/30/20268428 S HERMITAGE AVEAuburn Gresham18Completed5 daysPhone CallCity 311
5/14/20261340 W GRACE STLake View44Completed5 daysInternetCity 311
6/18/20266113 S DREXEL AVEWoodlawn20Completed5 daysInternetCity 311
10/23/20253138 W WABANSIA AVEHumboldt Park26Completed5 daysPhone CallCity 311
7/2/20263000 N KEATING AVEBelmont Cragin31Completed5 daysAlderman's OfficeCity 311
5/6/20262130 N KEDZIE AVELogan Square35Completed5 daysPhone CallCity 311
6/17/20265344 S MOODY AVEGarfield Ridge23Completed5 daysPhone CallCity 311
4/30/20265932 N OZANAM AVENorwood Park41Completed5 daysInternetCity 311
5/13/2026316 S SEELEY AVENear West Side27Completed5 daysInternetCity 311
10/19/20251907 W BERTEAU AVENorth Center47Completed5 daysInternetCity 311
7/9/20262625 N ORCHARD STLincoln Park43Completed5 daysPhone CallCity 311
8/9/20255852 S PRAIRIE AVEWashington Park20Completed5 daysMobile DeviceCity 311
4/22/20263504 W 85TH PLAshburn18Completed5 daysPhone CallCity 311
10/9/20252623 W 99TH STBeverly19Completed5 daysInternetCity 311
8/3/20251645 N KEELER AVEHumboldt Park26Completed5 daysPhone CallCity 311
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