RatCity — Chicago Rat and Rodent Sightings Map

RatCity

838 locations in the last week (870 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
10/26/20267314 N WINCHESTER AVERogers Park49Completed10 daysPhone CallCity 311
10/26/20262028 W 22ND PLLower West Side25Completed10 daysPhone CallCity 311
10/26/20266677 W RAVEN STNorwood Park45Completed4 daysInternetCity 311
10/26/20262505 N MAJOR AVEBelmont Cragin30Completed11 daysPhone CallCity 311
10/26/20262451 N ROCKWELL STLogan Square1Completed10 daysPhone CallCity 311
10/26/20263851 N LAKEWOOD AVELake View44Completed11 daysPhone CallCity 311
10/26/20262823 N LINCOLN AVELake View32Completed9 daysInternetCity 311
10/26/20265272 N CICERO AVEForest Glen39Completed10 daysPhone CallCity 311
10/26/202610823 S ALBANY AVEMount Greenwood19Completed11 daysPhone CallCity 311
10/26/20265221 N MEADE AVEJefferson Park45Completed4 daysPhone CallCity 311
10/26/20262634 W SUMMERDALE AVELincoln Square40Completed11 daysInternetCity 311
10/26/20262256 N KOSTNER AVEHermosa26Completed11 daysAlderman's OfficeCity 311
10/26/20264534 N KARLOV AVEAlbany Park39Completed10 daysInternetCity 311
10/26/2026869 N MOZART STWest Town36Completed1 dayInternetCity 311
10/26/20265435 N ARTESIAN AVELincoln Square40Completed7 daysPhone CallCity 311
10/26/20261539 N CLAREMONT AVEWest Town1Completed10 daysInternetCity 311
10/26/20266117 S MEADE AVEClearing13Completed10 daysInternetCity 311
10/26/20264511 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed11 daysPhone CallCity 311
10/26/20264241 N MOZART STIrving Park33Open—InternetCity 311
10/26/20263853 N ST LOUIS AVEIrving Park35Completed11 daysMobile DeviceCity 311
10/26/20265230 S WOODLAWN AVEHyde Park5Completed10 daysPhone CallCity 311
10/26/20264135 N MARMORA AVEPortage Park38Completed1 dayPhone CallCity 311
10/26/20263429 N PARIS AVEDunning38Completed1 dayPhone CallCity 311
10/26/20261230 E 46TH STKenwood4Completed3 daysPhone CallCity 311
10/26/20265140 W SCHUBERT AVEBelmont Cragin31Open—Alderman's OfficeCity 311
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