RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4279 locations in the last 30 days (4470 reports) · Last sighting 21 hours ago

📰 Blog
DayWeek30 DaysYear
Loading map…

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
6/10/20263064 N ELBRIDGE AVEAvondale35Completed1 dayAlderman's OfficeCity 311
6/15/20263440 W DIVERSEY AVEAvondale35Completed3 daysInternetCity 311
5/14/20262854 N AVERS AVEAvondale31Completed6 daysPhone CallCity 311
10/4/20263755 W ADDISON STAvondale30Completed17 daysPhone CallCity 311
11/25/20253101 N SPAULDING AVEAvondale35Completed3 daysMobile DeviceCity 311
9/17/20262941 N AVERS AVEAvondale31Completed15 daysAlderman's OfficeCity 311
5/18/20262950 N ROCKWELL STAvondale35Completed3 daysMobile DeviceCity 311
9/4/20263543 N ALBANY AVEAvondale33Completed13 daysInternetCity 311
8/24/20262854 N DRAKE AVEAvondale35Completed10 daysInternetCity 311
5/14/20264122 W OAKDALE AVEAvondale31Completed6 daysPhone CallCity 311
9/14/20254140 W OAKDALE AVEAvondale31Completed10 daysInternetCity 311
9/9/20262854 N AVERS AVEAvondale31Completed12 daysPhone CallCity 311
7/28/20252839 N ELSTON AVEAvondale35Completed8 daysAlderman's OfficeCity 311
9/16/20253021 N AVERS AVEAvondale31Completed10 daysPhone CallCity 311
6/24/20262963 N ALLEN AVEAvondale35Completed7 daysInternetCity 311
6/10/20262834 N DAWSON AVEAvondale35Completed1 dayMobile DeviceCity 311
8/21/20263034 N TROY STAvondale35Completed13 daysInternetCity 311
9/22/20263127 N LAWNDALE AVEAvondale35Completed10 daysInternetCity 311
8/14/20262834 N DRAKE AVEAvondale35Completed10 daysMobile DeviceCity 311
8/26/20262854 N AVERS AVEAvondale31Completed13 daysPhone CallCity 311
9/23/20263346 N SPRINGFIELD AVEAvondale30Completed13 daysPhone CallCity 311
6/3/20264000 W OAKDALE AVEAvondale31Completed5 daysAlderman's OfficeCity 311
9/23/20263249 N KEDZIE AVEAvondale33Completed13 daysInternetCity 311
10/25/20252820 W NELSON STAvondale35Completed6 daysMobile DeviceCity 311
2/20/20262827 N ELSTON AVEAvondale35Completed3 daysPhone CallCity 311
Page 1045 of 2,364
PreviousNext