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
10/17/20265158 W SCHOOL STPortage Park31Completed6 daysInternetCity 311
10/17/20263609 W 61ST STWest Lawn23Completed16 daysAlderman's OfficeCity 311
10/17/2026454 W 111THRoseland21Completed10 daysSalesforce Mobile AppCity 311
10/17/20268000 S ALBANY AVEAshburn18Completed6 daysPhone CallCity 311
10/17/20267642 S MORGAN STAuburn Gresham17Completed12 daysInternetCity 311
10/17/20265207 S KEATING AVEGarfield Ridge23Completed11 daysPhone CallCity 311
10/17/20264137 W 78TH PLAshburn18Completed6 daysMobile DeviceCity 311
10/17/20262728 W HADDON AVEWest Town36Completed11 daysMobile DeviceCity 311
10/17/20261611 N WESTERN AVEWest Town32Completed13 daysInternetCity 311
10/17/2026720 W OAKDALE AVELake View44Completed16 daysInternetCity 311
10/17/20264444 N MAPLEWOOD AVELincoln Square47Completed16 daysMobile DeviceCity 311
10/17/20263064 E 97TH STSouth Deering10Completed9 daysInternetCity 311
10/17/20262611 S MILLARD AVESouth Lawndale22Completed12 daysInternetCity 311
10/17/20267627 N ROGERS AVERogers Park49Completed2 daysMobile DeviceCity 311
10/17/20261424 W HOWARD STRogers Park49Completed10 daysMobile DeviceCity 311
10/17/20264842 W CONGRESS PKWYAustin29Completed12 daysMobile DeviceCity 311
10/17/20266128 S CHAMPLAIN AVEWoodlawn20Completed2 daysMobile DeviceCity 311
10/17/2026207 E OHIO STNear North Side2Completed6 daysMobile DeviceCity 311
10/17/20262952 N HOYNE AVENorth Center32Completed11 daysMobile DeviceCity 311
10/17/20266909 N CLARK STRogers Park49Completed10 daysMobile DeviceCity 311
10/16/202610938 S MILLARD AVEMount Greenwood19Completed7 daysInternetCity 311
10/16/20264414 S MOZART STBrighton Park12Completed7 daysInternetCity 311
10/16/20262801 S KEDZIE AVESouth Lawndale25Completed16 daysInternetCity 311
10/16/20261924 S RACINE AVELower West Side25Completed12 daysMobile DeviceCity 311
10/16/20264335 N HAMLIN AVEIrving Park33Completed12 daysMobile DeviceCity 311
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