RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4155 locations in the last 30 days (4338 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

59,712 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/13/20264436 N SHERIDAN RDUptown46Completed8 daysMobile DeviceCity 311
7/31/20254415 N FRANCISCO AVEAlbany Park33Completed8 daysMobile DeviceCity 311
9/16/20255825 S KOSTNER AVEWest Elsdon13Completed8 daysInternetCity 311
7/30/20253538 N NOTTINGHAM AVEDunning38Completed8 daysInternetCity 311
9/22/20252222 S LEAVITT STLower West Side25Completed8 daysAlderman's OfficeCity 311
10/7/2025600 E 102ND PLRoseland9Completed8 daysPhone CallCity 311
9/8/2025200 W MONTROSE HARBOR DRUptown46Completed8 daysInternetCity 311
10/13/20264343 N CLARENDON AVEUptown46Completed8 daysInternetCity 311
7/26/20261144 W DIVERSEY AVELake View44Completed8 daysMobile DeviceCity 311
8/31/20254445 N ST LOUIS AVEAlbany Park33Completed8 daysPhone CallCity 311
9/17/202510236 S GREEN STWashington Heights21Completed8 daysPhone CallCity 311
10/8/20266104 S WOOD STWest Englewood15Completed8 daysInternetCity 311
8/11/20251511 W ALBION AVERogers Park49Completed8 daysMobile DeviceCity 311
10/15/20253021 W LEXINGTON STEast Garfield Park28Completed8 daysPhone CallCity 311
7/6/20265338 W AGATITE AVEPortage Park45Completed8 daysMobile DeviceCity 311
8/5/20254758 S KOMENSKY AVEArcher Heights14Completed8 daysPhone CallCity 311
10/11/20261514 W 71ST STWest Englewood17Completed8 daysInternetCity 311
8/6/20256221 S MICHIGAN AVEWashington Park20Completed8 daysInternetCity 311
10/9/20251742 N TROY STHumboldt Park26Completed8 daysMobile DeviceCity 311
7/24/20254440 N DOVER STUptown46Completed8 daysInternetCity 311
9/16/20255038 N SPRINGFIELD AVEAlbany Park39Completed8 daysInternetCity 311
7/6/20262737 N KENMORE AVELincoln Park43Completed8 daysPhone CallCity 311
7/5/20264800 N LARAMIE AVEJefferson Park45Completed8 daysInternetCity 311
7/29/2025959 W 37TH STBridgeport11Completed8 daysInternetCity 311
6/28/20265110 N LOVEJOY AVEJefferson Park45Completed8 daysPhone CallCity 311
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