RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4065 locations in the last 30 days (4246 reports) · Last sighting 12 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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/31/2025628 W 44TH STNew City15Completed3 daysMobile DeviceCity 311
9/29/2025628 W ARMITAGE AVELincoln Park43Completed7 daysMobile DeviceCity 311
8/26/2025628 W BRIAR PLLake View44Completed10 daysPhone CallCity 311
9/14/2025628 W STRATFORD PLLake View46Completed0 daysInternetCity 311
8/19/2025628 W WEBSTER AVELincoln Park43Completed14 daysMobile DeviceCity 311
10/19/2026629 W 46TH STNew City15Completed15 daysPhone CallCity 311
2/9/2026629 W 61ST PLEnglewood16Completed1 dayPhone CallCity 311
5/21/2026629 W 61ST PLEnglewood16Completed6 daysPhone CallCity 311
11/9/2026629 W BELMONT AVELake View44Open—Mobile DeviceCity 311
2/10/2026629 W BUCKINGHAM PLLake View44Completed1 dayMobile DeviceCity 311
10/20/2025629 W BUCKINGHAM PLLake View44Completed3 daysAlderman's OfficeCity 311
9/30/2025629 W BUCKINGHAM PLLake View44Completed7 daysAlderman's OfficeCity 311
5/12/2026629 W CORNELIA AVELake View46Completed1 dayPhone CallCity 311
11/2/2026629 W CORNELIA AVELake View46Completed7 daysMobile DeviceCity 311
3/24/2026629 W DEMING PLLincoln Park43Completed2 daysInternetCity 311
11/3/2026629 W WELLINGTON AVELake View44Open—Phone CallCity 311
9/7/20256300 N ARTESIAN AVEWest Ridge50Completed9 daysPhone CallCity 311
9/27/20266300 N CLAREMONT AVEWest Ridge50Completed11 daysInternetCity 311
8/18/20256300 N FRANCISCO AVEWest Ridge50Completed10 daysPhone CallCity 311
8/14/20256300 N HERMITAGE AVEEdgewater40Completed13 daysInternetCity 311
9/15/20266300 N HERMITAGE AVEEdgewater40Completed14 daysPhone CallCity 311
1/12/20266300 N KENMORE AVEEdgewater48Completed2 daysPhone CallCity 311
9/7/20256300 N LAWNDALE AVENorth Park50Completed9 daysPhone CallCity 311
10/24/20256300 N LAWNDALE AVENorth Park50Completed6 daysAlderman's OfficeCity 311
7/9/20266300 N LEAVITT STWest Ridge50Completed4 daysPhone CallCity 311
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