RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4208 locations in the last 30 days (4391 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/6/20252946 N SPRINGFIELD AVEAvondale31Completed10 daysPhone CallCity 311
5/8/20264821 W ROSCOE STPortage Park31Completed3 daysPhone CallCity 311
10/3/20253136 N KOSTNER AVEHermosa31Completed13 daysMobile DeviceCity 311
10/6/20262925 N LUNA AVEBelmont Cragin31Completed15 daysMobile DeviceCity 311
10/15/20252420 N KEELER AVEHermosa31Completed6 daysPhone CallCity 311
10/1/20255349 W DRUMMOND PLBelmont Cragin31Completed13 daysInternetCity 311
9/23/20264349 W SCHUBERT AVEHermosa31Completed13 daysInternetCity 311
9/23/20264015 W NELSON STAvondale31Completed13 daysMobile DeviceCity 311
8/26/20263072 N DAVLIN CTAvondale31Completed13 daysInternetCity 311
6/27/20263043 N KOSTNER AVEHermosa31Completed4 daysPhone CallCity 311
10/26/20252906 N SPRINGFIELD AVEAvondale31Completed5 daysMobile DeviceCity 311
10/13/20264823 W EDDY STPortage Park31Completed10 daysMobile DeviceCity 311
10/25/20253039 N DAVLIN CTAvondale31Completed6 daysInternetCity 311
10/25/20255237 W OAKDALE AVEBelmont Cragin31Completed6 daysMobile DeviceCity 311
9/2/20262530 N KILDARE AVEHermosa31Completed14 daysInternetCity 311
10/25/20255348 W NELSON STBelmont Cragin31Completed6 daysInternetCity 311
9/5/20254117 W NELSON STAvondale31Completed13 daysPhone CallCity 311
10/25/20253818 W GEORGE STAvondale31Completed6 daysPhone CallCity 311
1/9/20262420 N KEELER AVEHermosa31Completed4 daysMobile DeviceCity 311
10/9/20255155 W BARRY AVEBelmont Cragin31Completed11 daysInternetCity 311
6/25/20262852 N HAMLIN AVEAvondale31Completed6 daysInternetCity 311
9/9/20252959 N HAMLIN AVEAvondale31Completed10 daysInternetCity 311
9/7/20255000 W SCHOOL STPortage Park31Completed12 daysPhone CallCity 311
10/7/20255340 W MELROSE STPortage Park31Completed8 daysMobile DeviceCity 311
10/7/20252404 N KILBOURN AVEHermosa31Completed13 daysInternetCity 311
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