RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4071 locations in the last 30 days (4245 reports) · Last sighting 17 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/3/20256545 W ADDISON STDunning38Completed7 daysMobile DeviceCity 311
10/3/20251426 E 72ND PLSouth Shore8Completed7 daysAlderman's OfficeCity 311
10/3/20253117 N CENTRAL PARK AVEAvondale35Completed11 daysPhone CallCity 311
10/3/20253549 W BELMONT AVEAvondale35Completed11 daysAlderman's OfficeCity 311
10/3/20253814 W 63RD PLWest Lawn23Completed4 daysPhone CallCity 311
10/3/20251540 S SPRINGFIELDNorth Lawndale24Completed3 daysSalesforce Mobile AppCity 311
10/3/20251650 S LAWNDALE AVENorth Lawndale24Completed6 daysAlderman's OfficeCity 311
10/3/20251428 W 72ND PLWest Englewood17Completed6 daysAlderman's OfficeCity 311
10/3/202510509 S WENTWORTH AVERoseland9Completed7 daysMobile DeviceCity 311
10/3/20251826 S CENTRAL PARKNorth Lawndale24Completed3 daysSalesforce Mobile AppCity 311
10/3/20257640 S ABERDEEN STAuburn Gresham17Completed6 daysAlderman's OfficeCity 311
10/3/20251631 S HAMLINNorth Lawndale24Completed3 daysSalesforce Mobile AppCity 311
10/3/20253800 W 16THNorth Lawndale24Completed3 daysSalesforce Mobile AppCity 311
10/3/20255600 S NEWCASTLE AVEGarfield Ridge13Completed7 daysAlderman's OfficeCity 311
10/3/20252038 W MAYPOLE AVENear West Side27Completed5 daysInternetCity 311
10/3/20255215 S MULLIGAN AVEGarfield Ridge23Completed6 daysMobile DeviceCity 311
10/3/20256441 S LAPORTE AVEClearing13Completed12 daysAlderman's OfficeCity 311
10/3/20259412 S PERRY AVERoseland9Completed7 daysInternetCity 311
10/3/202521 W CHESTNUT STNear North Side42Completed3 daysInternetCity 311
10/3/2025865 N LAKE SHORE DR NBNear North Side2Completed7 daysInternetCity 311
10/3/20256229 N ST LOUIS AVENorth Park50Completed6 daysAlderman's OfficeCity 311
10/3/202534 E OAK STNear North Side42Completed3 daysInternetCity 311
10/3/20251900 S MILLARD AVENorth Lawndale24Completed0 daysPhone CallCity 311
10/3/2025441 E 71ST STGreater Grand Crossing6Completed3 daysPhone CallCity 311
10/3/20254854 N AVERS AVEAlbany Park39Completed6 daysInternetCity 311
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