RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4232 locations in the last 30 days (4418 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 — 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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/16/20264635 S SPRINGFIELD AVEArcher Heights14Completed4 daysInternetCity 311
11/24/20254635 W MADISON STAustin28Completed2 daysAlderman's OfficeCity 311
9/29/20264635 W PETERSON AVEForest Glen39Completed10 daysPhone CallCity 311
4/24/20264636 N KOSTNER AVEIrving Park39Completed5 daysMobile DeviceCity 311
12/28/20254636 S EVANS AVEGrand Boulevard4Completed1 dayInternetCity 311
6/26/20264636 S KEDVALE AVEArcher Heights14Completed12 daysMobile DeviceCity 311
4/23/20264636 W 87TH STAshburn18Completed1 dayInternetCity 311
10/6/20254636 W HURON STAustin28Completed8 daysInternetCity 311
12/31/20254636 W MONROE STAustin28Completed5 daysPhone CallCity 311
6/6/20264636 W WAVELAND AVEPortage Park30Completed4 daysInternetCity 311
8/21/20264636 W WEST WEST END AVEAustin28Completed7 daysPhone CallCity 311
11/17/20254637 N CENTRAL PARK AVEAlbany Park33Completed2 daysInternetCity 311
6/17/20264637 S CALUMET AVEGrand Boulevard3Completed6 daysPhone CallCity 311
9/18/20254637 S HARDING AVEArcher Heights14Completed7 daysInternetCity 311
11/15/20254637 S WASHTENAW AVEBrighton Park12Completed2 daysPhone CallCity 311
9/11/20254637 S WASHTENAW AVEBrighton Park12Completed5 daysInternetCity 311
10/10/20264637 W WARWICK AVEPortage Park30Completed16 daysMobile DeviceCity 311
7/16/20264637 W WARWICK AVEPortage Park30Completed8 daysMobile DeviceCity 311
6/22/20264638 N LAWLER AVEPortage Park45Completed4 daysInternetCity 311
8/11/20264638 N MONTICELLO AVEAlbany Park33Completed15 daysInternetCity 311
10/21/20264638 N SPAULDING AVEAlbany Park33Completed6 daysInternetCity 311
10/21/20254638 W 47TH STGarfield Ridge22Completed2 daysInternetCity 311
10/12/20264638 W 47TH STGarfield Ridge22Completed8 daysInternetCity 311
7/17/20264638 W WARWICK AVEPortage Park30Completed7 daysMobile DeviceCity 311
10/28/20264639 N BROADWAYUptown46Completed12 daysInternetCity 311
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