RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4022 locations in the last 30 days (4196 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

60,241 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/20251222 W DIVERSEY AVELake View32Completed11 daysInternetCity 311
9/25/2025132 E 23RD STNear South Side3Completed7 daysInternetCity 311
9/25/20253707 N NARRAGANSETTDunning38Completed8 daysSalesforce Mobile AppCity 311
9/25/2025938 W LELAND AVEUptown46Completed8 daysMobile DeviceCity 311
9/25/20255408 S KENNETH AVEWest Elsdon23Completed7 daysPhone CallCity 311
9/25/20252742 W 16TH STNorth Lawndale28Completed7 daysInternetCity 311
9/25/20259228 S ABERDEEN STWashington Heights21Completed5 daysPhone CallCity 311
9/25/20254853 W QUINCY STAustin28Completed7 daysPhone CallCity 311
9/25/20251614 N HAMLIN AVEHumboldt Park26Completed8 daysPhone CallCity 311
9/25/202510502 S LAWNDALE AVEMount Greenwood19Completed7 daysPhone CallCity 311
9/25/20254340 N CAMPBELL AVENorth Center47Completed8 daysPhone CallCity 311
9/25/20253604 W WOLFRAM STAvondale35Completed8 daysPhone CallCity 311
9/25/20251032 W MONTROSE AVEUptown46Completed8 daysInternetCity 311
9/25/20252901 S DR MARTIN LUTHER KING JR DRDouglas4Completed7 daysPhone CallCity 311
9/25/20255221 W NELSON STBelmont Cragin31Completed7 daysMobile DeviceCity 311
9/25/2025165 N MAY STNear West Side27Completed5 daysInternetCity 311
9/25/20253843 N SEELEY AVENorth Center47Completed11 daysInternetCity 311
9/25/20254820 W GRACE STPortage Park45Completed8 daysPhone CallCity 311
9/25/20255200 W MADISON STAustin37Completed5 daysInternetCity 311
9/25/20253940 N NARRAGANSETT AVEDunning38Completed8 daysMobile DeviceCity 311
9/25/20253215 W WILSON AVEAlbany Park33Completed7 daysMobile DeviceCity 311
9/24/20252209 N KENMORE AVELincoln Park43Completed11 daysMobile DeviceCity 311
9/24/2025539 W 45TH PLNew City15Completed7 daysMobile DeviceCity 311
9/24/20252918 S LOWE AVEBridgeport11Completed6 daysMobile DeviceCity 311
9/24/20251125 W 31ST STBridgeport11Completed7 daysMobile DeviceCity 311
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