RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4289 locations in the last 30 days (4480 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/12/20253175 N HUDSON AVELake View44Completed10 daysInternetCity 311
7/7/20263175 N HUDSON AVELake View44Completed9 daysInternetCity 311
10/12/20253179 N BROADWAYLake View44Completed3 daysMobile DeviceCity 311
6/29/2026317 N CLARK STNear North Side42Completed10 daysMobile DeviceCity 311
2/18/2026317 S HOMAN AVEEast Garfield Park28Completed2 daysAlderman's OfficeCity 311
10/8/2025317 W 25TH PLArmour Square11Completed2 daysAlderman's OfficeCity 311
11/11/2025317 W 25TH PLArmour Square11Completed1 dayMobile DeviceCity 311
5/20/2026317 W 28TH PLArmour Square11Completed1 dayMobile DeviceCity 311
2/19/2026317 W BELDEN AVELincoln Park43Completed4 daysInternetCity 311
8/14/2025317 W GOETHE STNear North Side27Completed12 daysPhone CallCity 311
9/30/2025317 W WEBSTER AVELincoln Park43Completed8 daysInternetCity 311
6/11/2026318 N KEDZIE AVEEast Garfield Park28Completed1 dayMobile DeviceCity 311
8/20/2025318 S SACRAMENTO AVEEast Garfield Park28Completed7 daysPhone CallCity 311
5/13/2026318 S SEELEY AVENear West Side27Completed7 daysInternetCity 311
10/26/2025318 W 104TH STRoseland21Completed3 daysInternetCity 311
5/5/2026318 W 107TH PLRoseland21Completed2 daysInternetCity 311
6/3/2026318 W 107TH PLRoseland21Completed1 dayInternetCity 311
6/3/2026318 W 107TH PLRoseland21Completed1 dayInternetCity 311
10/20/2026318 W 107TH PLRoseland21Completed13 daysInternetCity 311
7/7/2026318 W 107TH PLRoseland21Completed8 daysInternetCity 311
9/17/2026318 W 27TH STArmour Square11Completed12 daysInternetCity 311
2/18/2026318 W 27TH STArmour Square11Completed1 dayInternetCity 311
11/25/2025318 W 27TH STArmour Square11Completed6 daysInternetCity 311
11/3/2025318 W 27TH STArmour Square11Completed4 daysInternetCity 311
4/14/2026318 W 27TH STArmour Square11Completed1 dayInternetCity 311
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