RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4028 locations in the last 30 days (4203 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

60,097 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/11/20266055 W DAKIN STDunning38Completed14 daysMobile DeviceCity 311
10/8/20263904 N NORA AVEDunning38Completed20 daysMobile DeviceCity 311
8/3/20253457 N PACIFIC AVEDunning38Completed12 daysInternetCity 311
8/9/20267721 W PATTERSON AVEDunning38Completed16 daysInternetCity 311
7/30/20253714 N OLEANDER AVEDunning38Completed8 daysInternetCity 311
8/13/20264435 N MERRIMAC AVEPortage Park38Completed4 daysPhone CallCity 311
10/31/20263943 N OCONTO AVEDunning38Open—InternetCity 311
9/30/20264148 N MONITOR AVEPortage Park38Completed14 daysPhone CallCity 311
8/15/20264524 N MEADE AVEPortage Park38Completed10 daysMobile DeviceCity 311
8/17/20266158 W BERENICE AVEDunning38Completed14 daysInternetCity 311
8/2/20263414 N OZANAM AVEDunning38Completed16 daysInternetCity 311
8/8/20267143 W ADDISON STDunning38Completed4 daysInternetCity 311
7/18/20263711 N NOTTINGHAMDunning38Completed10 daysSalesforce Mobile AppCity 311
7/6/20263201 W BERWYN AVENorth Park39Completed7 daysPhone CallCity 311
10/5/20264900 N KILDARE AVEAlbany Park39Completed15 daysPhone CallCity 311
9/5/20266321 N KEELER AVEForest Glen39Completed9 daysInternetCity 311
10/5/20264901 N KILDARE AVEAlbany Park39Completed15 daysAlderman's OfficeCity 311
10/2/20265231 N SPAULDING AVENorth Park39Completed18 daysInternetCity 311
8/18/20266108 N KILBOURN AVEForest Glen39Completed10 daysMobile DeviceCity 311
7/22/20255064 N KIMBALL AVENorth Park39Completed10 daysInternetCity 311
6/26/20265943 N KENNETH AVEForest Glen39Completed5 daysInternetCity 311
8/6/20266301 N LA CROSSE AVEForest Glen39Completed12 daysMobile DeviceCity 311
9/4/20264739 N KIONA AVEAlbany Park39Completed13 daysPhone CallCity 311
7/30/20265000 W CATALPA AVEForest Glen39Completed11 daysMobile DeviceCity 311
7/29/20254115 N KEDVALE AVEIrving Park39Completed9 daysInternetCity 311
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