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 — 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/16/20264217 S ARTESIAN AVEBrighton Park12Completed7 daysPhone CallCity 311
10/16/20261926 N HALSTED STLincoln Park43Completed11 daysPhone CallCity 311
10/16/2026816 W 51ST PLNew City20Completed3 daysPhone CallCity 311
10/16/20261454 N LUNA AVEAustin37Completed11 daysPhone CallCity 311
10/16/20262455 W GRENSHAW STNear West Side28Completed6 daysPhone CallCity 311
10/16/20268638 S THROOP STAuburn Gresham17Completed14 daysPhone CallCity 311
10/16/20263828 W 84TH STAshburn18Completed7 daysPhone CallCity 311
10/16/20265255 N LAMON AVEForest Glen39Completed14 daysInternetCity 311
10/16/20267405 S INDIANA AVEGreater Grand Crossing6Completed13 daysPhone CallCity 311
10/16/20266302 W GIDDINGS STPortage Park41Completed11 daysMobile DeviceCity 311
10/16/20266238 W BARRY AVEBelmont Cragin30Completed14 daysMobile DeviceCity 311
10/16/20265948 S ROCKWELL STChicago Lawn16Completed10 daysInternetCity 311
10/16/20262828 S LOCK STBridgeport11Completed12 daysInternetCity 311
10/16/20266240 S AUSTIN AVEClearing13Completed14 daysMobile DeviceCity 311
10/15/20266059 S MASON AVEClearing13Completed14 daysInternetCity 311
10/15/20265336 N NEW ENGLAND AVENorwood Park41Completed12 daysMobile DeviceCity 311
10/15/20265340 N NEW ENGLAND AVENorwood Park41Completed12 daysMobile DeviceCity 311
10/15/20264817 W BERENICE AVEPortage Park45Completed17 daysMobile DeviceCity 311
10/15/20262339 W 19TH STLower West Side25Completed13 daysMobile DeviceCity 311
10/15/20262501 S KEELER AVESouth Lawndale22Completed13 daysInternetCity 311
10/15/2026827 W WRIGHTWOOD AVELincoln Park43Completed14 daysInternetCity 311
10/15/20263215 N DAYTON STLake View44Completed13 daysInternetCity 311
10/15/20262957 W BELDEN AVELogan Square35Completed14 daysInternetCity 311
10/15/20263035 S THROOP STBridgeport11Completed13 daysInternetCity 311
10/15/20262505 S KEELER AVESouth Lawndale22Completed13 daysInternetCity 311
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