RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4219 locations in the last 30 days (4402 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/19/20258850 S JUSTINE STAuburn Gresham18Completed8 daysAlderman's OfficeCity 311
7/29/20256339 S LONG AVEClearing13Completed8 daysMobile DeviceCity 311
8/17/20262704 S WELLS STArmour Square11Completed8 daysMobile DeviceCity 311
7/26/20267508 S MERRILL AVESouth Shore8Completed8 daysPhone CallCity 311
9/30/20252015 N KEELER AVEHermosa35Completed8 daysPhone CallCity 311
6/29/2026919 W 57TH STEnglewood16Completed8 daysAlderman's OfficeCity 311
7/30/20252458 W BELLE PLAINE AVENorth Center47Completed8 daysAlderman's OfficeCity 311
10/2/20259236 S ABERDEEN STWashington Heights21Completed8 daysPhone CallCity 311
8/2/20266704 S STEWART AVEEnglewood6Completed8 daysPhone CallCity 311
7/26/20264159 W NELSON STAvondale31Completed8 daysMobile DeviceCity 311
9/16/20267429 S COLES AVESouth Shore7Completed8 daysMobile DeviceCity 311
6/29/20266014 S CARPENTER STEnglewood16Completed8 daysInternetCity 311
8/26/20268426 W BRODMAN AVEO'Hare38Completed8 daysInternetCity 311
10/7/20269637 S YATES AVESouth Deering7Completed8 daysAlderman's OfficeCity 311
6/28/20265110 N LOVEJOY AVEJefferson Park45Completed8 daysPhone CallCity 311
7/29/2025959 W 37TH STBridgeport11Completed8 daysInternetCity 311
7/5/20264800 N LARAMIE AVEJefferson Park45Completed8 daysInternetCity 311
7/6/20262737 N KENMORE AVELincoln Park43Completed8 daysPhone CallCity 311
9/16/20255038 N SPRINGFIELD AVEAlbany Park39Completed8 daysInternetCity 311
7/24/20254440 N DOVER STUptown46Completed8 daysInternetCity 311
10/9/20251742 N TROY STHumboldt Park26Completed8 daysMobile DeviceCity 311
8/6/20256221 S MICHIGAN AVEWashington Park20Completed8 daysInternetCity 311
10/11/20261514 W 71ST STWest Englewood17Completed8 daysInternetCity 311
8/5/20254758 S KOMENSKY AVEArcher Heights14Completed8 daysPhone CallCity 311
7/6/20265338 W AGATITE AVEPortage Park45Completed8 daysMobile DeviceCity 311
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