RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4091 locations in the last 30 days (4275 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 — 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/8/20263943 N MOZART STIrving Park35Completed0 daysInternetCity 311
4/8/202631 W 41TH STGrand Boulevard3Completed0 daysInternetCity 311
4/8/20262751 N SEMINARY AVELincoln Park43Completed0 daysPhone CallCity 311
4/8/20263442 W PARKER AVELogan Square35Completed1 dayPhone CallCity 311
4/8/20263806 N SAWYER AVEIrving Park33Completed0 daysPhone CallCity 311
4/8/20264053 W 58TH STWest Elsdon13Completed1 dayMobile DeviceCity 311
4/8/20263671 N ELSTON AVEIrving Park33Completed1 dayInternetCity 311
4/8/20265354 W AGATITE AVEPortage Park45Completed1 dayInternetCity 311
4/8/20265338 N NEWCASTLE AVENorwood Park41Completed1 dayPhone CallCity 311
4/8/20261512 N FREMONT STNear North Side27Completed1 dayInternetCity 311
4/8/20263808 N PINE GROVE AVELake View46Completed1 dayMobile DeviceCity 311
4/8/20263630 N DAMEN AVENorth Center47Completed1 dayPhone CallCity 311
4/8/20267016 S EMERALD AVEEnglewood6Completed1 dayInternetCity 311
4/8/20267018 S EMERALD AVEEnglewood6Completed1 dayInternetCity 311
4/8/20266149 N KARLOV AVEForest Glen39Completed2 daysInternetCity 311
4/8/20261732 N MILWAUKEE AVEWest Town32Completed6 daysMobile DeviceCity 311
4/8/20266025 N RIDGE AVEEdgewater40Completed1 dayPhone CallCity 311
4/8/20264580 N MELVINA AVEPortage Park38Completed0 daysMobile DeviceCity 311
4/8/20265657 S THROOP STWest Englewood16Completed1 dayPhone CallCity 311
4/8/20265532 S CORNELL AVEHyde Park5Completed1 dayPhone CallCity 311
4/8/20265700 W SCHOOL STPortage Park30Completed1 dayPhone CallCity 311
4/8/20261037 N SPRINGFIELD AVEHumboldt Park37Completed2 daysMobile DeviceCity 311
4/8/20264128 W SCHOOL STIrving Park30Completed1 dayMobile DeviceCity 311
4/8/20264918 W WASHINGTON BLVDAustin28Completed1 dayPhone CallCity 311
4/8/20263139 N KOSTNER AVEHermosa31Completed0 daysAlderman's OfficeCity 311
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