RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4112 locations in the last 30 days (4292 reports) · Last sighting 20 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
11/1/20252330 W 21ST STLower West Side25Completed5 daysMobile DeviceCity 311
10/21/20262330 W 21ST STLower West Side25Completed12 daysMobile DeviceCity 311
8/10/20252330 S SAWYER AVESouth Lawndale25Completed12 daysMobile DeviceCity 311
10/5/20262330 S DR MARTIN LUTHER KING JR DRNear South Side4Completed15 daysInternetCity 311
10/2/20252330 N LISTER AVELogan Square32Completed6 daysPhone CallCity 311
9/19/20252330 N CALIFORNIA AVELogan Square1Completed12 daysInternetCity 311
12/26/2025232 W WILLOW STLincoln Park43Completed3 daysInternetCity 311
10/8/2025232 E OHIO STNear North Side2Completed2 daysMobile DeviceCity 311
12/23/20252329 W WALTON STWest Town36Completed1 dayMobile DeviceCity 311
9/19/20262329 W MORSE AVEWest Ridge40Completed10 daysMobile DeviceCity 311
10/4/20252329 W IOWA STWest Town36Completed5 daysMobile DeviceCity 311
8/15/20252329 W FULLERTON AVELogan Square32Completed11 daysMobile DeviceCity 311
10/19/20262329 W CORTEZ STWest Town36Completed1 dayPhone CallCity 311
9/11/20262329 W CORTEZ STWest Town36Completed12 daysInternetCity 311
10/21/20252329 W ALTGELD STLogan Square32Completed7 daysMobile DeviceCity 311
11/2/20262329 N LATROBE AVEBelmont Cragin31Completed10 daysMobile DeviceCity 311
9/30/20252329 N LATROBE AVEBelmont Cragin31Completed14 daysMobile DeviceCity 311
10/22/20252329 N ELSTON AVELogan Square32Completed6 daysInternetCity 311
7/26/20252328 W MONTANA STLogan Square32Completed9 daysMobile DeviceCity 311
6/1/20262328 W LUNT AVEWest Ridge50Completed3 daysMobile DeviceCity 311
8/22/20252328 W ERIE STWest Town36Completed3 daysPhone CallCity 311
8/6/20252328 W ERIE STWest Town36Completed15 daysPhone CallCity 311
12/11/20252328 W AUGUSTA BLVDWest Town36Completed1 dayMobile DeviceCity 311
10/18/20252328 W AUGUSTA BLVDWest Town36Completed6 daysMobile DeviceCity 311
8/11/20262328 W AUGUSTA BLVDWest Town36Completed14 daysMobile DeviceCity 311
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