RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4070 locations in the last 30 days (4252 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/2/20261936 N ST LOUIS AVELogan Square26Completed6 daysMobile DeviceCity 311
9/3/20266242 N KENMORE AVEEdgewater48Completed6 daysPhone CallCity 311
7/14/20261628 W CERMAK RDLower West Side25Completed6 daysAlderman's OfficeCity 311
5/20/202612428 S MICHIGAN AVEWest Pullman9Completed6 daysAlderman's OfficeCity 311
5/14/20262727 S WESTERN AVELower West Side12Completed6 daysInternetCity 311
6/30/202611856 S WESTERN AVEMorgan Park19Completed6 daysInternetCity 311
5/15/20265505 N SPAULDING AVENorth Park39Completed6 daysMobile DeviceCity 311
8/28/20266505 S FRANCISCO AVEChicago Lawn15Completed6 daysAlderman's OfficeCity 311
10/18/202510544 S LAFAYETTE AVERoseland9Completed6 daysInternetCity 311
7/9/2026238 W 22ND PLArmour Square11Completed6 daysAlderman's OfficeCity 311
10/10/20252600 W EVERGREEN AVEWest Town26Completed6 daysPhone CallCity 311
9/18/20251836 S MORGAN STLower West Side25Completed6 daysPhone CallCity 311
6/4/20265232 N CAMPBELL AVELincoln Square40Completed6 daysInternetCity 311
7/26/20254940 S MILLARD AVEWest Elsdon14Completed6 daysMobile DeviceCity 311
9/11/20265421 W WINDSORPortage Park45Completed6 daysSalesforce Mobile AppCity 311
8/14/20252252 N KIMBALL AVELogan Square35Completed6 daysPhone CallCity 311
7/26/20256121 N HAMILTON AVEWest Ridge40Completed6 daysMobile DeviceCity 311
9/3/20268145 S SOUTH SHORE DRSouth Chicago7Completed6 daysPhone CallCity 311
10/11/20257212 W IBSEN STEdison Park41Completed6 daysPhone CallCity 311
8/28/20267600 S JEFFERY AVESouth Shore8Completed6 daysPhone CallCity 311
8/19/20251756 W CORNELIA AVELake View47Completed6 daysAlderman's OfficeCity 311
10/2/202510615 S SANGAMON STWashington Heights21Completed6 daysPhone CallCity 311
7/24/20265312 W WASHINGTON BLVDAustin37Completed6 daysPhone CallCity 311
8/29/20268729 S HERMITAGE AVEAuburn Gresham18Completed6 daysMobile DeviceCity 311
7/21/20262743 N PINE GROVE AVELincoln Park43Completed6 daysPhone CallCity 311
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