RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3970 locations in the last 30 days (4147 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.

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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

60,312 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/30/20266342 N MAPLEWOOD AVEWest Ridge50Completed15 daysInternetCity 311
9/30/20262146 N MCVICKER AVEBelmont Cragin36Completed13 daysPhone CallCity 311
9/30/20265046 S PULASKI RDArcher Heights14Completed13 daysMobile DeviceCity 311
9/30/2026116 W ELM STNear North Side27Completed19 daysInternetCity 311
9/30/20268349 S KARLOV AVEAshburn18Completed13 daysPhone CallCity 311
9/30/20264804 S FORRESTVILLE AVEGrand Boulevard3Completed1 dayPhone CallCity 311
9/30/20264435 S WALLACE STNew City15Completed15 daysMobile DeviceCity 311
9/30/20263941 W 69TH PLWest Lawn23Completed14 daysPhone CallCity 311
9/30/20265605 S KILDARE AVEWest Elsdon13Completed14 daysAlderman's OfficeCity 311
9/30/20264917 N MERRIMAC AVEJefferson Park45Completed14 daysPhone CallCity 311
9/30/20263201 W BERWYN AVENorth Park39Completed14 daysPhone CallCity 311
9/30/20262449 W ARMITAGE AVELogan Square1Completed13 daysAlderman's OfficeCity 311
9/30/20268534 S OGLESBY AVESouth Chicago8Completed6 daysAlderman's OfficeCity 311
9/30/20264937 W DAKIN STPortage Park45Completed15 daysPhone CallCity 311
9/30/20261409 N MONTICELLO AVEHumboldt Park26Completed16 daysInternetCity 311
9/30/20263124 N NOTTINGHAM AVEMontclare29Completed19 daysPhone CallCity 311
9/30/202611223 S HOMAN AVEMount Greenwood19Completed13 daysPhone CallCity 311
9/30/20261800 S CENTRAL PARK AVENorth Lawndale24Completed14 daysAlderman's OfficeCity 311
9/30/20262012 S ALLPORT STLower West Side25Completed15 daysInternetCity 311
9/30/20266348 S WESTERN AVEChicago Lawn16Completed14 daysMobile DeviceCity 311
9/30/20262705 W FULTON STEast Garfield Park27Completed9 daysInternetCity 311
9/30/20261445 E 65TH STWoodlawn5Completed14 daysInternetCity 311
9/30/20264440 S WOOD STNew City15Completed15 daysAlderman's OfficeCity 311
9/30/2026544 W 103RD PLRoseland21Completed19 daysInternetCity 311
9/30/20262427 W MEDILL AVELogan Square1Completed13 daysAlderman's OfficeCity 311
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