RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4116 locations in the last 30 days (4300 reports) · Last sighting 23 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 — 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
5/13/20262172 N MAJOR AVEBelmont Cragin36Completed5 daysMobile DeviceCity 311
5/13/20262127 N SEMINARY AVELincoln Park43Completed4 daysInternetCity 311
5/13/20263907 N CUMBERLAND AVEDunning38Completed2 daysInternetCity 311
5/13/20261201 W 97TH STWashington Heights21Completed7 daysMobile DeviceCity 311
5/13/20261205 W 97TH STWashington Heights21Completed7 daysMobile DeviceCity 311
5/13/20261248 N GREENVIEW AVEWest Town1Completed6 daysInternetCity 311
5/13/20266700 W SCHREIBER AVENorwood Park41Completed4 daysInternetCity 311
5/13/20262249 W MONROE STNear West Side27Completed7 daysInternetCity 311
5/13/20261836 N LOWELL AVEHermosa26Completed5 daysInternetCity 311
5/13/202612430 S MICHIGAN AVEWest Pullman9Completed6 daysInternetCity 311
5/13/20268435 S HERMITAGE AVEAuburn Gresham18Completed6 daysInternetCity 311
5/13/20262415 W BELLE PLAINE AVENorth Center47Completed2 daysMobile DeviceCity 311
5/13/20268100 S THROOP STAuburn Gresham17Completed2 daysPhone CallCity 311
5/13/20268037 S THROOP STAuburn Gresham17Completed2 daysPhone CallCity 311
5/13/20262717 W CATALPA AVELincoln Square40Completed2 daysPhone CallCity 311
5/13/20261023 W WEBSTER AVELincoln Park43Completed6 daysMobile DeviceCity 311
5/13/2026524 W 29TH STBridgeport11Completed2 daysInternetCity 311
5/13/20264118 N AUSTIN AVEPortage Park38Completed2 daysMobile DeviceCity 311
5/13/20261922 S CENTRAL PARK AVENorth Lawndale24Completed6 daysPhone CallCity 311
5/13/20261533 N KEYSTONE AVEHumboldt Park26Completed5 daysMobile DeviceCity 311
5/13/20264334 S SACRAMENTO AVEBrighton Park12Completed7 daysMobile DeviceCity 311
5/13/20262862 W LYNDALE STLogan Square1Completed2 daysMobile DeviceCity 311
5/13/20265341 N SAWYER AVENorth Park39Completed5 daysMobile DeviceCity 311
5/13/20262131 W CATON STWest Town32Completed5 daysMobile DeviceCity 311
5/13/20261113 N ASHLAND AVEWest Town1Completed6 daysInternetCity 311
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