RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4194 locations in the last 30 days (4377 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/31/20265259 W ADDISON STPortage Park31Completed12 daysMobile DeviceCity 311
2/6/20265259 W ALTGELD STBelmont Cragin31Completed3 daysMobile DeviceCity 311
12/30/20255259 W ARGYLE STJefferson Park45Completed1 dayPhone CallCity 311
9/25/20265259 W CARMEN AVEJefferson Park45Completed14 daysMobile DeviceCity 311
9/30/20255259 W QUINCY STAustin29Completed2 daysPhone CallCity 311
10/30/20265259 W WASHINGTON BLVDAustin37Completed4 daysPhone CallCity 311
1/14/20265259 W WASHINGTON BLVDAustin37Completed1 dayAlderman's OfficeCity 311
6/10/2026525 N AUSTIN BLVDAustin29Completed2 daysMobile DeviceCity 311
8/29/2025525 N BISHOP STWest Town1Completed11 daysInternetCity 311
9/16/2025525 N BISHOP STWest Town1Completed9 daysPhone CallCity 311
2/26/2026525 N BISHOP STWest Town1Completed0 daysInternetCity 311
8/29/2026525 N MARSHFIELD AVEWest Town1Completed12 daysMobile DeviceCity 311
9/11/2025525 N WOOD STWest Town1Completed11 daysInternetCity 311
7/29/2025525 S CICERO AVEAustin24Completed10 daysPhone CallCity 311
9/15/2026525 S STATE STLoop4Completed10 daysInternetCity 311
10/7/2026525 S STATE STLoop4Completed13 daysMobile DeviceCity 311
10/3/2025525 W 128TH STWest Pullman9Completed7 daysPhone CallCity 311
8/6/2025525 W 128TH STWest Pullman9Completed9 daysPhone CallCity 311
7/27/2025525 W 128TH STWest Pullman9Completed9 daysPhone CallCity 311
9/23/2026525 W 128TH STWest Pullman9Completed8 daysPhone CallCity 311
12/9/2025525 W 43RD STNew City11Completed1 dayInternetCity 311
10/1/2025525 W 43RD STNew City11Completed9 daysInternetCity 311
1/7/2026525 W 43RD STNew City11Completed1 dayInternetCity 311
8/29/2025525 W ARLINGTON PLLincoln Park43Completed12 daysInternetCity 311
11/24/2025525 W HAWTHORNE PLLake View44Completed1 dayInternetCity 311
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