RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4020 locations in the last 30 days (4195 reports) · Last sighting 2 days 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
6/5/20265644 N BERNARD STNorth Park39Completed5 daysPhone CallCity 311
9/2/20255644 N SPAULDING AVENorth Park39Completed8 daysMobile DeviceCity 311
6/14/20265644 S GREEN STEnglewood16Completed2 daysInternetCity 311
8/19/20255644 S KOLIN AVEWest Elsdon13Completed10 daysPhone CallCity 311
10/30/20265644 S MELVINA AVEGarfield Ridge13Completed10 daysInternetCity 311
7/1/20265644 S MELVINA AVEGarfield Ridge13Completed6 daysInternetCity 311
5/19/20265644 S MORGAN STEnglewood16Completed2 daysAlderman's OfficeCity 311
10/5/20265644 S NEWLAND AVEGarfield Ridge13Completed15 daysInternetCity 311
9/22/20265644 S SACRAMENTO AVEGage Park14Completed2 daysPhone CallCity 311
8/4/20265644 W 64TH STClearing13Completed9 daysInternetCity 311
4/29/20265644 W 64TH STClearing13Completed1 dayInternetCity 311
10/13/20265644 W 64TH STClearing13Completed15 daysInternetCity 311
8/7/20255644 W BYRON STPortage Park38Completed15 daysInternetCity 311
9/18/20255644 W BYRON STPortage Park38Completed11 daysMobile DeviceCity 311
4/28/20265644 W BYRON STPortage Park38Completed3 daysInternetCity 311
10/29/20265644 W CORNELIA AVEPortage Park30Completed12 daysMobile DeviceCity 311
8/21/20265644 W NEWPORT AVEPortage Park30Completed12 daysMobile DeviceCity 311
7/28/20255644 W NEWPORT AVEPortage Park30Completed9 daysInternetCity 311
10/27/20265644 W NEWPORT AVEPortage Park30Completed10 daysInternetCity 311
7/7/20265644 W SCHOOL STPortage Park30Completed9 daysAlderman's OfficeCity 311
12/3/20255645 W 63RD PLClearing13Completed0 daysInternetCity 311
7/21/20265645 W 63RD PLClearing13Completed9 daysInternetCity 311
5/19/20265645 W 63RD PLClearing13Completed2 daysInternetCity 311
7/23/20265645 W BERENICE AVEPortage Park38Completed6 daysMobile DeviceCity 311
10/19/20265645 W BERENICE AVEPortage Park38Completed2 daysMobile DeviceCity 311
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