RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4291 locations in the last 30 days (4483 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.

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

1,021 reports match your filters.

Clear filters
DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/26/20261621 N HUMBOLDT BLVDWest Town26Open—InternetCity 311
10/26/20261631 W MORSE AVERogers Park49Open—Mobile DeviceCity 311
10/26/20264747 N TROY STAlbany Park33Open—Phone CallCity 311
10/26/20261512 W BERWYN AVEEdgewater40Open—Mobile DeviceCity 311
10/26/20261631 N VINE STLincoln Park43Open—InternetCity 311
10/26/20262332 W JACKSON BLVDNear West Side27Open—InternetCity 311
10/26/20263715 N RICHMOND STIrving Park35Open—InternetCity 311
10/26/20263711 N RICHMOND STIrving Park35Open—InternetCity 311
10/26/20262133 N SOUTHPORT AVELincoln Park2Open—InternetCity 311
10/26/20263352 N MARSHFIELD AVELake View32Open—Mobile DeviceCity 311
10/26/20265958 W BERENICE AVEPortage Park38Open—Mobile DeviceCity 311
10/26/20262631 W FITCH AVEWest Ridge50Completed1 dayMobile DeviceCity 311
10/26/20262123 W ROSCOE STNorth Center32Open—InternetCity 311
10/26/20264107 N DICKINSON AVEPortage Park45Open—InternetCity 311
10/26/20264847 W ARGYLE STForest Glen45Open—InternetCity 311
10/26/20266148 W 63RD PLClearing13Open—Mobile DeviceCity 311
10/26/20266146 W 63RD PLClearing13Open—Mobile DeviceCity 311
10/26/20263710 S HONORE STMcKinley Park12Open—InternetCity 311
10/26/20265100 S MICHIGAN AVEWashington Park3Open—InternetCity 311
10/26/20263505 W MCLEAN AVELogan Square26Open—Mobile DeviceCity 311
10/26/20265701 S MOODY AVEGarfield Ridge13Open—Mobile DeviceCity 311
10/26/20261012 W CULLERTON STLower West Side25Open—InternetCity 311
10/26/20265631 N VIRGINIA AVEWest Ridge50Completed3 daysInternetCity 311
10/26/20267924 S LOWE AVEAuburn Gresham6Open—InternetCity 311
10/26/20263031 W HOLLYWOOD AVEWest Ridge50Open—InternetCity 311
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