RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4254 locations in the last 30 days (4443 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 — 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/13/20251245 N KOSTNER AVEHumboldt Park37Completed2 daysMobile DeviceCity 311
12/13/20252245 S MICHIGAN AVENear South Side3Completed2 daysInternetCity 311
12/13/20252057 W CERMAK RDLower West Side25Completed2 daysInternetCity 311
12/13/20253555 W MEDILL AVELogan Square35Completed2 daysMobile DeviceCity 311
12/13/20255462 S INGLESIDE AVEHyde Park20Completed2 daysInternetCity 311
12/13/20251724 N WINNEBAGO AVEWest Town32Completed2 daysMobile DeviceCity 311
12/13/20252401 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
12/13/20254048 N WESTERN AVENorth Center47Completed2 daysMobile DeviceCity 311
12/13/20256149 W BERENICE AVEDunning38Completed2 daysInternetCity 311
12/13/20254016 N CLARK STLake View46Completed2 daysInternetCity 311
12/13/20253115 N MONTICELLO AVEAvondale35Completed2 daysInternetCity 311
12/13/20253028 W WILSON AVEAlbany Park33Completed2 daysInternetCity 311
12/13/20256130 S WASHTENAW AVEChicago Lawn16Completed2 daysPhone CallCity 311
12/13/20252155 N LATROBE AVEBelmont Cragin26Completed2 daysMobile DeviceCity 311
12/13/20251327 W 18TH STLower West Side25Completed2 daysInternetCity 311
12/13/20253328 N NORDICA AVEDunning38Completed2 daysMobile DeviceCity 311
12/13/20255808 W WARWICK AVEPortage Park38Completed2 daysMobile DeviceCity 311
12/13/20253611 W 115TH STMount Greenwood19Completed2 daysMobile DeviceCity 311
12/13/20253702 N SPAULDING AVEIrving Park33Completed2 daysMobile DeviceCity 311
12/13/2025163 W ELM STNear North Side27Completed2 daysMobile DeviceCity 311
12/13/2025903 N HERMITAGE AVEWest Town1Completed2 daysMobile DeviceCity 311
12/14/20255835 S FAIRFIELD AVEGage Park15Completed1 dayMobile DeviceCity 311
12/14/20256828 S PULASKI RDWest Lawn23Completed1 dayMobile DeviceCity 311
12/14/20252814 W 21ST STSouth Lawndale25Completed1 dayInternetCity 311
12/14/20251943 N HONORE STLogan Square32Completed1 dayInternetCity 311
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