RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4214 locations in the last 30 days (4399 reports) · Last sighting 16 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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/3/202611115 S CENTRAL PARK AVEMount Greenwood19Open—Phone CallCity 311
10/20/202611142 S ST LOUIS AVEMount Greenwood19Completed7 daysPhone CallCity 311
10/1/202510802 S HALE AVEMorgan Park19Completed2 daysMobile DeviceCity 311
10/10/202510801 S KEDZIE AVEMount Greenwood19Completed4 daysAlderman's OfficeCity 311
9/26/202510802 S HALE AVEMorgan Park19Completed7 daysAlderman's OfficeCity 311
9/2/202510601 S CAMPBELL AVEBeverly19Completed9 daysAlderman's OfficeCity 311
7/3/202610646 S KEDZIE AVEMount Greenwood19Completed5 daysPhone CallCity 311
12/2/202511034 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
12/2/202511040 S HARDING AVEMount Greenwood19Completed1 dayPhone CallCity 311
12/9/202511452 S LONGWOOD DRMorgan Park19Completed1 dayMobile DeviceCity 311
8/22/202511817 S CAMPBELL AVEMorgan Park19Completed5 daysPhone CallCity 311
7/9/202610943 S HOMEWOOD AVEMorgan Park19Completed1 dayPhone CallCity 311
7/9/202610947 S HOMEWOOD AVEMorgan Park19Completed1 dayPhone CallCity 311
8/29/202510805 S TROY STMount Greenwood19Completed10 daysInternetCity 311
9/1/202510517 S SAWYER AVEMount Greenwood19Completed10 daysInternetCity 311
12/2/20253854 W 110TH PLMount Greenwood19Completed1 dayPhone CallCity 311
8/15/202511711 S CHURCH STMorgan Park19Completed12 daysInternetCity 311
9/26/20253858 W 110TH PLMount Greenwood19Completed7 daysAlderman's OfficeCity 311
8/24/20253411 W 115TH PLMount Greenwood19Completed3 daysMobile DeviceCity 311
12/3/202511026 S PROSPECT AVEMorgan Park19Completed0 daysMobile DeviceCity 311
8/21/20253416 W 116TH STMount Greenwood19Completed6 daysPhone CallCity 311
12/3/202511020 S PROSPECT AVEMorgan Park19Completed0 daysMobile DeviceCity 311
12/11/20252532 W 109TH PLMorgan Park19Completed0 daysMobile DeviceCity 311
9/25/20253811 W 110TH PLMount Greenwood19Completed8 daysPhone CallCity 311
8/24/20253611 W 115TH STMount Greenwood19Completed3 daysMobile DeviceCity 311
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