RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4251 locations in the last 30 days (4440 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 — 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/18/20262942 W MARQUETTE RDChicago Lawn15Completed5 daysPhone CallCity 311
6/18/20266133 N NORTHWEST HWYNorwood Park41Completed5 daysInternetCity 311
6/18/20262965 S LYMAN STBridgeport11Completed5 daysPhone CallCity 311
6/18/20264611 S HARDING AVEArcher Heights14Completed4 daysAlderman's OfficeCity 311
6/18/2026540 W ALDINE AVELake View44Completed5 daysPhone CallCity 311
6/18/202610422 S CLAREMONT AVEBeverly19Completed4 daysAlderman's OfficeCity 311
6/18/20264845 S WESTERN BLVDNew City15Completed5 daysPhone CallCity 311
6/18/20269735 S AVENUE NEast Side10Completed6 daysWalk-inCity 311
6/18/20262443 W LELAND AVELincoln Square47Completed6 daysPhone CallCity 311
6/18/20261922 S TROY STNorth Lawndale24Completed6 daysMobile DeviceCity 311
6/18/20263223 W OLIVE AVENorth Park39Completed4 daysInternetCity 311
6/18/20265239 W GEORGE STBelmont Cragin31Completed4 daysMobile DeviceCity 311
6/18/20263639 W WOLFRAM STAvondale35Completed4 daysMobile DeviceCity 311
6/18/20267800 W BELMONT AVEDunning38Completed6 daysPhone CallCity 311
6/18/20265623 S WOOD STWest Englewood15Completed5 daysPhone CallCity 311
6/18/20264442 N ST LOUIS AVEAlbany Park33Completed4 daysInternetCity 311
6/18/20265354 W AGATITE AVEPortage Park45Completed5 daysInternetCity 311
6/18/20262527 N HALSTED STLincoln Park43Completed5 daysAlderman's OfficeCity 311
6/18/20262234 S BELL AVELower West Side25Completed6 daysMobile DeviceCity 311
6/18/20261927 N DAYTON STLincoln Park43Completed5 daysAlderman's OfficeCity 311
6/18/20261912 N HOWE STLincoln Park43Completed5 daysAlderman's OfficeCity 311
6/18/20261943 N BURLING STLincoln Park43Completed5 daysPhone CallCity 311
6/18/20264014 W 26TH STSouth Lawndale22Completed6 daysPhone CallCity 311
6/18/20264338 W BARRY AVEHermosa31Completed4 daysAlderman's OfficeCity 311
6/18/20263669 N ELSTON AVEIrving Park33Completed4 daysInternetCity 311
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