RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4194 locations in the last 30 days (4379 reports) · Last sighting 2 days 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

58,858 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/7/2026525 W 43RD STNew City11Completed1 dayInternetCity 311
1/7/20263801 W DIVERSEY AVELogan Square35Completed1 dayPhone CallCity 311
1/7/20263022 W DIVERSEY AVEAvondale35Completed1 dayPhone CallCity 311
1/7/20264902 W POTOMAC AVEAustin37Completed2 daysPhone CallCity 311
1/7/20264902 W POTOMAC AVEAustin37Completed2 daysPhone CallCity 311
1/7/20262432 S TRUMBULL AVESouth Lawndale22Completed1 dayAlderman's OfficeCity 311
1/7/20266449 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
1/7/20266477 S NORMANDY AVEClearing13Completed2 daysInternetCity 311
1/7/20266700 W 64TH PLClearing13Completed2 daysInternetCity 311
1/7/20264958 W WEST END AVEAustin28Completed2 daysInternetCity 311
1/7/20265919 W WILSON AVEPortage Park38Completed2 daysMobile DeviceCity 311
1/7/20262050 W 70TH PLWest Englewood17Completed1 dayPhone CallCity 311
1/7/20265009 W BYRON STPortage Park30Completed2 daysAlderman's OfficeCity 311
1/7/20268107 S MARSHFIELD AVEAuburn Gresham17Completed1 dayInternetCity 311
1/7/2026435 E 45TH PLGrand Boulevard3Completed1 dayInternetCity 311
1/7/20262147 W HURON STWest Town36Completed2 daysInternetCity 311
1/7/20264159 W FULLERTON AVEHermosa31Completed1 dayPhone CallCity 311
1/7/20262215 N HOYNE AVELogan Square32Completed1 dayMobile DeviceCity 311
1/7/20269622 S AVALON AVEPullman8Completed1 dayPhone CallCity 311
1/7/2026144 S SACRAMENTO AVEEast Garfield Park28Completed2 daysPhone CallCity 311
1/7/20262622 W LUTHER STSouth Lawndale25Completed2 daysPhone CallCity 311
1/7/20266137 S MORGAN STEnglewood16Completed1 dayPhone CallCity 311
1/7/20267023 S CORNELL AVESouth Shore5Completed1 dayInternetCity 311
1/7/20265425 S WOLCOTT AVENew City16Completed1 dayInternetCity 311
1/7/202610162 S ELIZABETH STWashington Heights21Completed1 dayPhone CallCity 311
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