RatCity — Chicago Rat and Rodent Sightings Map

RatCity

8 locations in the last day (9 reports) · Last sighting 21 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 — 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/24/20264815 W WASHINGTON BLVDAustin28Completed4 daysInternetCity 311
9/24/20265140 W WRIGHTWOOD AVEBelmont Cragin31Completed12 daysInternetCity 311
9/24/20265217 W AGATITE AVEPortage Park45Completed12 daysInternetCity 311
9/24/2026729 N CHRISTIANA AVEHumboldt Park27Completed12 daysMobile DeviceCity 311
9/24/20262316 N RIDGEWAY AVELogan Square35Completed13 daysInternetCity 311
9/24/20263151 W ARGYLE STAlbany Park33Completed13 daysMobile DeviceCity 311
9/24/20265334 S GREENWOOD AVEHyde Park5Completed12 daysMobile DeviceCity 311
9/24/20261517 W OLIVE AVEEdgewater48Completed14 daysPhone CallCity 311
9/24/2026538 W 45TH STNew City15Completed13 daysMobile DeviceCity 311
9/24/20262317 N ORCHARD STLincoln Park43Completed5 daysMobile DeviceCity 311
9/24/20263603 W WOLFRAM STAvondale35Completed12 daysInternetCity 311
9/24/20261421 W CUYLER AVELake View47Completed13 daysInternetCity 311
9/24/2026635 W 43RD PLNew City11Completed13 daysMobile DeviceCity 311
9/24/20262946 N SPAULDING AVEAvondale35Completed11 daysMobile DeviceCity 311
9/24/20262700 N MULLIGAN AVEBelmont Cragin36Completed13 daysPhone CallCity 311
9/24/20262440 W CORTEZ STWest Town36Completed13 daysMobile DeviceCity 311
9/24/202610411 S RHODES AVERoseland9Completed14 daysPhone CallCity 311
9/24/20264204 N MEADE AVEPortage Park38Completed13 daysPhone CallCity 311
9/24/20263544 W WABANSIA AVEHumboldt Park26Completed11 daysInternetCity 311
9/24/20262539 W 50TH STGage Park15Completed13 daysPhone CallCity 311
9/24/202611400 S ELIZABETH STMorgan Park21Completed1 dayInternetCity 311
9/24/202610439 S HEast Side10Completed8 daysInternetCity 311
9/24/20269322 S SAGINAW AVECalumet Heights7Completed15 daysInternetCity 311
9/24/20267900 S CALIFORNIA AVEAshburn18Completed19 daysPhone CallCity 311
9/24/20265300 S PRINCETON AVEFuller Park20Completed13 daysPhone CallCity 311
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