RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4046 locations in the last 30 days (4226 reports) · Last sighting 2 days 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/5/20267333 N RIDGE AVERogers Park49Completed2 daysInternetCity 311
5/5/202611336 S INDIANA AVERoseland9Completed2 daysAlderman's OfficeCity 311
5/5/20264701 N MAGNOLIA AVEUptown46Completed1 dayPhone CallCity 311
5/5/20262138 W HADDON AVEWest Town1Completed3 daysInternetCity 311
5/5/20263607 W WOLFRAM STAvondale35Completed1 dayInternetCity 311
5/5/20261940 W GRACE STNorth Center47Completed2 daysMobile DeviceCity 311
5/5/20266035 W SCHOOL STDunning30Completed2 daysPhone CallCity 311
5/5/20268418 S GILBERT CTAuburn Gresham21Completed2 daysPhone CallCity 311
5/5/20262520 W FOSTER AVELincoln Square40Completed2 daysInternetCity 311
5/5/20266800 W ARMITAGEAustin29Completed6 daysSalesforce Mobile AppCity 311
5/5/20263729 N HALSTED STLake View46Completed1 dayInternetCity 311
5/5/2026318 W 107TH PLRoseland21Completed2 daysInternetCity 311
5/5/20261401 W 110TH STMorgan Park21Completed2 daysInternetCity 311
5/5/202611550 S CHURCH STMorgan Park19Completed1 dayInternetCity 311
5/5/20261246 W 50TH STNew City20Completed1 dayInternetCity 311
5/5/20264723 N MAGNOLIA AVEUptown46Completed1 dayPhone CallCity 311
5/5/20261473 W 114TH PLMorgan Park21Completed2 daysInternetCity 311
5/5/202612712 S PEORIA STWest Pullman9Completed2 daysInternetCity 311
5/5/202610639 S AVENUE GEast Side10Completed3 daysPhone CallCity 311
5/5/20265738 S CALUMET AVEWashington Park20Completed1 dayInternetCity 311
5/5/20265142 N AUSTIN AVEJefferson Park45Completed3 daysPhone CallCity 311
5/5/20262348 S LEAVITT STLower West Side25Completed1 dayPhone CallCity 311
5/5/20261643 S MILLARD AVENorth Lawndale24Completed1 dayPhone CallCity 311
5/5/20267519 S ESSEX AVESouth Shore7Completed6 daysAlderman's OfficeCity 311
5/5/20265506 N LOTUS AVEJefferson Park45Completed3 daysPhone CallCity 311
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