RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4152 locations in the last 30 days (4333 reports) · Last sighting 11 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/3/2026941 E 52ND STHyde Park5Completed11 daysMobile DeviceCity 311
8/29/20254509 W HARRISON STWest Garfield Park28Completed11 daysPhone CallCity 311
7/30/2026639 W 43RD PLNew City11Completed11 daysMobile DeviceCity 311
9/14/20265310 N CICERO AVEForest Glen39Completed11 daysMobile DeviceCity 311
8/1/20265423 N ARTESIAN AVELincoln Square40Completed11 daysInternetCity 311
8/18/20252937 N ALBANY AVEAvondale35Completed11 daysPhone CallCity 311
9/18/20267525 S MAY STAuburn Gresham17Completed11 daysPhone CallCity 311
9/21/20262332 W EASTWOOD AVELincoln Square47Completed11 daysMobile DeviceCity 311
7/2/20264152 N AUSTIN AVEPortage Park38Completed11 daysMobile DeviceCity 311
9/5/20254724 N SACRAMENTO AVEAlbany Park33Completed11 daysInternetCity 311
10/22/20262235 N KIMBALL AVELogan Square35Completed11 daysInternetCity 311
7/19/20263345 N RIDGEWAY AVEAvondale30Completed11 daysInternetCity 311
8/24/20265804 S MASSASOIT AVEGarfield Ridge13Completed11 daysInternetCity 311
10/17/20265207 S KEATING AVEGarfield Ridge23Completed11 daysPhone CallCity 311
9/4/20253160 N MILWAUKEE AVEAvondale31Completed11 daysPhone CallCity 311
9/5/20267717 N HERMITAGE AVERogers Park49Completed11 daysInternetCity 311
10/9/20254147 N MARMORA AVEPortage Park38Completed11 daysAlderman's OfficeCity 311
9/14/20262818 N MULLIGAN AVEBelmont Cragin30Completed11 daysPhone CallCity 311
8/14/20267217 S CALIFORNIA AVEChicago Lawn18Completed11 daysMobile DeviceCity 311
7/31/20253755 N OAKLEY AVENorth Center47Completed11 daysMobile DeviceCity 311
9/11/20264621 S HARDING AVEArcher Heights14Completed11 daysPhone CallCity 311
7/18/20265220 W WOLFRAM STBelmont Cragin31Completed11 daysInternetCity 311
8/23/20253670 N ELSTON AVEIrving Park35Completed11 daysInternetCity 311
9/27/20264925 N TALMAN AVELincoln Square40Completed11 daysMobile DeviceCity 311
10/22/20262840 N CENTRAL PARKAvondale35Completed11 daysSalesforce Mobile AppCity 311
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