RatCity — Chicago Rat and Rodent Sightings Map

RatCity

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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.

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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

59,882 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/6/20263201 W BERWYN AVENorth Park39Completed7 daysPhone CallCity 311
7/6/202611000 S NORMAL AVERoseland21Completed1 dayInternetCity 311
7/6/20265148 W ST PAUL AVEAustin37Completed8 daysInternetCity 311
7/6/20262231 E 102ND STSouth Deering7Completed2 daysInternetCity 311
7/6/20267041 S MORGAN STEnglewood16Completed4 daysAlderman's OfficeCity 311
7/6/20266027 N NAVARRE AVENorwood Park41Completed7 daysPhone CallCity 311
7/6/20266031 N NAVARRE AVENorwood Park41Completed7 daysPhone CallCity 311
7/6/20265408 N NAGLE AVENorwood Park41Completed8 daysPhone CallCity 311
7/6/20263019 N LINCOLN AVELake View32Completed8 daysInternetCity 311
7/6/202610223 S ABERDEEN STWashington Heights21Completed1 dayInternetCity 311
7/6/20263030 W CHASE AVEWest Ridge50Completed7 daysPhone CallCity 311
7/6/20263004 W SHERWIN AVEWest Ridge50Completed7 daysPhone CallCity 311
7/6/202610300 S AVENUE MEast Side10Completed2 daysWalk-inCity 311
7/6/20262719 W WINONA STLincoln Square40Completed4 daysInternetCity 311
7/6/20268156 S MAY STAuburn Gresham17Completed1 dayAlderman's OfficeCity 311
7/6/20269129 S PERRY AVERoseland9Completed2 daysInternetCity 311
7/6/20263011 W CHASE AVEWest Ridge50Completed1 dayInternetCity 311
7/6/20263211 S PULASKI RDSouth Lawndale22Completed1 dayPhone CallCity 311
7/6/20265528 W BERTEAU AVEPortage Park38Completed8 daysMobile DeviceCity 311
7/6/20267256 S SACRAMENTO AVEChicago Lawn18Completed3 daysInternetCity 311
7/6/20266438 N NEWGARD AVERogers Park49Completed7 daysMobile DeviceCity 311
7/6/2026722 N CICERO AVEAustin37Completed8 daysMobile DeviceCity 311
7/6/20268545 S OGLESBY AVESouth Chicago8Completed8 daysPhone CallCity 311
7/6/20267559 N ROGERS AVERogers Park49Completed7 daysMobile DeviceCity 311
7/6/20262545 S CENTRAL PARK AVESouth Lawndale22Completed1 dayPhone CallCity 311
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