RatCity — Chicago Rat and Rodent Sightings Map

RatCity

3982 locations in the last 30 days (4160 reports) · Last sighting 20 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 — 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
9/3/20257524 S PARNELL AVEGreater Grand Crossing6Completed12 daysInternetCity 311
9/3/20253422 N LINCOLN AVELake View47Completed9 daysInternetCity 311
9/3/20251666 W FARWELL AVERogers Park49Completed9 daysMobile DeviceCity 311
9/3/20253416 W 107TH STMount Greenwood19Completed8 daysMobile DeviceCity 311
9/3/20254100 W MELROSE STIrving Park30Completed12 daysAlderman's OfficeCity 311
9/3/20253624 S PRAIRIE AVEDouglas3Completed8 daysInternetCity 311
9/3/20256517 S BELL AVEChicago Lawn16Completed12 daysPhone CallCity 311
9/3/20251910 N CALIFORNIA AVELogan Square1Completed13 daysMobile DeviceCity 311
9/3/20255407 N ARTESIAN AVELincoln Square40Completed8 daysMobile DeviceCity 311
9/3/20255304 S FAIRFIELD AVEGage Park14Completed12 daysInternetCity 311
9/3/20254210 W MADISON STWest Garfield Park28Completed8 daysInternetCity 311
9/3/20256334 N MOBILE AVENorwood Park39Completed12 daysPhone CallCity 311
9/3/202512237 S ELIZABETH STWest Pullman21Completed9 daysInternetCity 311
9/3/20253223 N RAVENSWOOD AVELake View32Completed13 daysPhone CallCity 311
9/3/20255450 N WASHTENAW AVELincoln Square40Completed14 daysAlderman's OfficeCity 311
9/3/20252224 W CERMAK RDLower West Side25Completed12 daysAlderman's OfficeCity 311
9/3/20252942 W MONTROSE AVEAlbany Park33Completed2 daysInternetCity 311
9/3/20253819 S WALLACE STBridgeport11Completed13 daysInternetCity 311
9/3/20251928 N KENMORE AVELincoln Park43Completed12 daysInternetCity 311
9/3/20255736 W EDDY STPortage Park30Completed12 daysMobile DeviceCity 311
9/3/20255456 N GLENWOOD AVEEdgewater48Completed8 daysAlderman's OfficeCity 311
9/3/20255136 S ELLIS AVEHyde Park5Completed9 daysMobile DeviceCity 311
9/3/20253521 W 107TH STMount Greenwood19Completed12 daysMobile DeviceCity 311
9/3/20255235 W BELDEN AVEBelmont Cragin36Completed9 daysInternetCity 311
9/3/20255145 S MICHIGAN AVEWashington Park3Completed8 daysAlderman's OfficeCity 311
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