RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4090 locations in the last 30 days (4266 reports) · Last sighting 15 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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/23/20252035 N KOSTNER AVEHermosa35Completed1 dayInternetCity 311
7/18/20262035 N AVERS AVELogan Square26Completed10 daysInternetCity 311
8/19/20252035 E 73RD STSouth Shore7Completed6 daysPhone CallCity 311
10/5/20252034 W IOWA STWest Town36Completed9 daysMobile DeviceCity 311
7/27/20262034 W IOWA STWest Town36Completed11 daysPhone CallCity 311
8/31/20262034 W EASTWOOD AVELincoln Square47Completed15 daysInternetCity 311
8/6/20252034 W CORTLAND STLogan Square32Completed13 daysInternetCity 311
10/4/20262034 W BRADLEY PLNorth Center47Completed15 daysMobile DeviceCity 311
8/30/20252034 W BERWYN AVELincoln Square40Completed4 daysInternetCity 311
6/3/20262034 N ORLEANS STLincoln Park43Completed2 daysInternetCity 311
2/25/20262034 N LAVERGNE AVEBelmont Cragin26Completed1 dayPhone CallCity 311
1/14/20262034 N KOSTNER AVEHermosa26Completed0 daysPhone CallCity 311
1/8/20262034 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
12/17/20252034 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
1/5/20262034 N KOSTNER AVEHermosa26Completed1 dayPhone CallCity 311
3/18/20262034 N DAYTON STLincoln Park43Completed1 dayInternetCity 311
3/11/20262034 N DAYTON STLincoln Park43Completed1 dayInternetCity 311
2/16/20262034 N DAYTON STLincoln Park43Completed1 dayInternetCity 311
9/3/20262034 N DAYTON STLincoln Park43Completed13 daysInternetCity 311
8/18/20262034 N DAYTON STLincoln Park43Completed14 daysInternetCity 311
2/27/20262033 W SUPERIOR STWest Town36Completed4 daysMobile DeviceCity 311
10/31/20252033 W SCHOOL STNorth Center32Completed4 daysInternetCity 311
1/31/20262033 W SCHOOL STNorth Center32Completed2 daysInternetCity 311
5/19/20262033 W BIRCHWOOD AVERogers Park49Completed7 daysPhone CallCity 311
10/5/20262033 W BIRCHWOOD AVERogers Park49Completed8 daysMobile DeviceCity 311
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