RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4298 locations in the last 30 days (4490 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 — Oct 26–Nov 1, 2026

  • 🐀 1,021 new reports — down 9% from the week before
  • 👑 Lake View is Rat King with 70 reports
  • 📈 Biggest jump: Lincoln Park, up 15 from last week
  • 🏙️ The city took 11.2 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

58,726 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20255213 S CENTRAL AVEGarfield Ridge23Completed9 daysPhone CallCity 311
3/19/20265440 S NEWCASTLE AVEGarfield Ridge23Completed1 dayInternetCity 311
3/20/20265121 S NEW ENGLAND AVEGarfield Ridge23Completed1 dayMobile DeviceCity 311
10/28/20263850 W 65TH STWest Lawn23Open—Phone CallCity 311
10/28/20263613 W 56TH PLWest Elsdon23Open—Mobile DeviceCity 311
9/15/20255420 S NAGLE AVEGarfield Ridge23Completed7 daysInternetCity 311
9/24/20255152 S NARRAGANSETT AVEGarfield Ridge23Completed8 daysMobile DeviceCity 311
9/13/20255416 S NAGLE AVEGarfield Ridge23Completed9 daysPhone CallCity 311
9/26/20255238 S MERRIMAC AVEGarfield Ridge23Completed6 daysMobile DeviceCity 311
3/23/20265101 S NEENAH AVEGarfield Ridge23Completed0 daysPhone CallCity 311
9/23/20255401 S LONG AVEGarfield Ridge23Completed9 daysAlderman's OfficeCity 311
9/23/20255400 S LONG AVEGarfield Ridge23Completed9 daysAlderman's OfficeCity 311
3/21/20263644 W 62ND STWest Lawn23Completed2 daysMobile DeviceCity 311
9/4/20253912 W 58TH PLWest Elsdon23Completed13 daysAlderman's OfficeCity 311
9/24/20255219 S KEATING AVEGarfield Ridge23Completed8 daysMobile DeviceCity 311
9/26/20255227 S KEATING AVEGarfield Ridge23Completed6 daysPhone CallCity 311
9/23/20255243 S KEATING AVEGarfield Ridge23Completed9 daysInternetCity 311
9/23/20257144 S AVERS AVEWest Lawn23Completed9 daysAlderman's OfficeCity 311
9/24/20257139 S HARDING AVEWest Lawn23Completed8 daysAlderman's OfficeCity 311
9/23/20257139 S HARDING AVEWest Lawn23Completed9 daysAlderman's OfficeCity 311
11/17/20253900 W 70TH PLWest Lawn23Completed1 dayPhone CallCity 311
8/27/20265109 S NEW ENGLAND AVEGarfield Ridge23Completed13 daysPhone CallCity 311
11/18/20255437 S LOCKWOOD AVEGarfield Ridge23Completed0 daysInternetCity 311
10/15/20263600 W 71ST STWest Lawn23Completed15 daysPhone CallCity 311
10/19/20265347 W 53RD PLGarfield Ridge23Completed14 daysInternetCity 311
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