RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4316 locations in the last 30 days (4508 reports) · Last sighting 18 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 — 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/23/20264645 W PATTERSON AVEPortage Park30Completed10 daysInternetCity 311
4/27/20264645 W PATTERSON AVEPortage Park30Completed2 daysInternetCity 311
3/13/20264645 W MCLEAN AVEBelmont Cragin26Completed3 daysPhone CallCity 311
7/10/20264645 W GRACE STPortage Park45Completed11 daysPhone CallCity 311
6/1/20264645 W BELMONT AVEBelmont Cragin31Completed7 daysAlderman's OfficeCity 311
8/21/20264645 S MICHIGAN AVEGrand Boulevard3Completed6 daysPhone CallCity 311
9/22/20264645 N BROADWAYUptown46Completed13 daysPhone CallCity 311
10/15/20264644 W ADDISON STPortage Park30Completed15 daysMobile DeviceCity 311
8/24/20264644 W ADDISON STPortage Park30Completed9 daysInternetCity 311
9/28/20254644 S PAULINA STNew City15Completed7 daysInternetCity 311
8/16/20264644 N CENTRAL PARK AVEAlbany Park33Completed11 daysMobile DeviceCity 311
7/24/20264643 W WRIGHTWOOD AVEBelmont Cragin31Completed10 daysInternetCity 311
7/9/20264643 W ADDISON STPortage Park30Completed15 daysInternetCity 311
8/29/20254643 S HOMAN AVEBrighton Park12Completed13 daysInternetCity 311
6/5/20264643 S HOMAN AVEBrighton Park12Completed3 daysInternetCity 311
8/25/20264643 S DRAKE AVEBrighton Park12Completed10 daysAlderman's OfficeCity 311
10/12/20264643 S DRAKE AVEBrighton Park12Completed11 daysPhone CallCity 311
10/30/20264643 N KOSTNER AVEIrving Park39Open—Phone CallCity 311
10/19/20264643 N KENMORE AVEUptown46Completed8 daysPhone CallCity 311
8/10/20264643 N CAMPBELL AVELincoln Square47Completed15 daysMobile DeviceCity 311
5/22/20264643 N BROADWAYUptown46Completed4 daysAlderman's OfficeCity 311
8/5/20254642 W GLADYS AVEAustin28Completed8 daysAlderman's OfficeCity 311
1/27/20264641 W MONTANA STBelmont Cragin31Completed1 dayPhone CallCity 311
9/10/20264641 W MONTANA STBelmont Cragin31Completed13 daysPhone CallCity 311
7/21/20264641 W MAYPOLE AVEAustin28Completed7 daysPhone CallCity 311
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