RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4114 locations in the last 30 days (4296 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.

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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
1/7/20263032 S PRINCETON AVEArmour Square11Completed1 dayPhone CallCity 311
1/7/20262321 W HARRISON STNear West Side28Completed2 daysMobile DeviceCity 311
1/7/20261640 N KEDZIE AVEHumboldt Park26Completed2 daysMobile DeviceCity 311
1/7/20264847 S WINCHESTER AVENew City15Completed1 dayMobile DeviceCity 311
1/7/20261012 W CULLERTON STLower West Side25Completed2 daysInternetCity 311
1/7/2026829 W LAKESIDE PLUptown46Completed1 dayMobile DeviceCity 311
1/7/20262622 W BALMORAL AVELincoln Square40Completed2 daysMobile DeviceCity 311
1/7/20266100 S NATOMA AVEClearing13Completed2 daysInternetCity 311
1/7/20266100 S NASHVILLE AVEClearing13Completed2 daysInternetCity 311
1/7/20263215 N OTTAWA AVEDunning38Completed2 daysMobile DeviceCity 311
1/7/202610535 S AVENUE HEast Side10Completed2 daysPhone CallCity 311
1/7/2026864 N FRANCISCO AVEWest Town36Completed2 daysPhone CallCity 311
1/7/20265043 N KILBOURN AVEAlbany Park39Completed2 daysMobile DeviceCity 311
1/7/20263669 N ELSTON AVEIrving Park33Completed2 daysInternetCity 311
1/7/202610162 S ELIZABETH STWashington Heights21Completed1 dayPhone CallCity 311
1/7/20265425 S WOLCOTT AVENew City16Completed1 dayInternetCity 311
1/7/20267023 S CORNELL AVESouth Shore5Completed1 dayInternetCity 311
1/7/20266137 S MORGAN STEnglewood16Completed1 dayPhone CallCity 311
1/7/20262622 W LUTHER STSouth Lawndale25Completed2 daysPhone CallCity 311
1/7/2026144 S SACRAMENTO AVEEast Garfield Park28Completed2 daysPhone CallCity 311
1/7/20269622 S AVALON AVEPullman8Completed1 dayPhone CallCity 311
1/7/20262215 N HOYNE AVELogan Square32Completed1 dayMobile DeviceCity 311
1/7/20264159 W FULLERTON AVEHermosa31Completed1 dayPhone CallCity 311
1/7/20262147 W HURON STWest Town36Completed2 daysInternetCity 311
1/7/2026435 E 45TH PLGrand Boulevard3Completed1 dayInternetCity 311
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