RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3971 locations in the last 30 days (4148 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.

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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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/2025552 W OAKDALE AVELake View44Completed19 daysPhone CallCity 311
8/14/20252825 N CAMBRIDGE AVELake View44Completed19 daysMobile DeviceCity 311
10/26/2026615 W BRIAR PLLake View44Completed11 daysMobile DeviceCity 311
12/13/20254016 N CLARK STLake View46Completed2 daysInternetCity 311
8/17/20251231 W NEWPORT AVELake View44Completed16 daysMobile DeviceCity 311
10/20/20261340 W GRACE STLake View44Completed13 daysInternetCity 311
8/28/20251253 W NEWPORT AVELake View44Completed5 daysInternetCity 311
12/12/20253934 N SOUTHPORT AVELake View46Completed4 daysInternetCity 311
8/23/20253742 N ASHLAND AVELake View47Completed12 daysInternetCity 311
8/17/2025829 W NEWPORT AVELake View44Completed16 daysMobile DeviceCity 311
8/18/2025845 W NEWPORT AVELake View44Completed15 daysMobile DeviceCity 311
10/26/20261542 W GEORGE STLake View32Completed9 daysMobile DeviceCity 311
8/21/20253514 N FREMONT STLake View44Completed14 daysPhone CallCity 311
12/16/20253509 N MARSHFIELD AVELake View47Completed1 dayInternetCity 311
2/11/20261350 W BYRON STLake View46Completed1 dayInternetCity 311
10/26/20263851 N LAKEWOOD AVELake View44Completed11 daysPhone CallCity 311
10/26/20261448 W FLETCHER STLake View32Completed9 daysPhone CallCity 311
10/26/20262823 N LINCOLN AVELake View32Completed9 daysInternetCity 311
9/8/20261611 W CULLOMLake View47Completed14 daysSalesforce Mobile AppCity 311
9/8/20263617 N GREENVIEW AVELake View44Completed13 daysPhone CallCity 311
12/16/20253200 N WILTON AVELake View44Completed1 dayInternetCity 311
8/20/20253338 N PAULINA STLake View32Completed13 daysInternetCity 311
10/13/20261347 W GRACE STLake View44Completed13 daysInternetCity 311
10/14/20262958 N CLARK STLake View44Completed12 daysPhone CallCity 311
8/24/20261742 W ADDISON STLake View47Completed15 daysMobile DeviceCity 311
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