RatCity — Chicago Rat and Rodent Sightings Map

RatCity

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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.

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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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/27/20262914 S WALLACE STBridgeport11Open—Phone CallCity 311
10/27/20262107 N MARMORA AVEBelmont Cragin36Open—Mobile DeviceCity 311
10/27/20262445 N CLYBOURN AVELincoln Park32Open—Phone CallCity 311
10/27/20263945 W 65TH PLWest Lawn23Open—Phone CallCity 311
10/27/20264740 N LAVERGNE AVEPortage Park45Open—InternetCity 311
10/27/20264912 S KILPATRICK AVEGarfield Ridge14Open—Phone CallCity 311
10/27/20266904 W FARRAGUT AVENorwood Park41Completed2 daysPhone CallCity 311
10/27/20263157 W 83RD PLAshburn18Open—Phone CallCity 311
10/27/20263419 N SOUTHPORT AVELake View44Open—InternetCity 311
10/27/20262215 W CERMAK RDLower West Side25Open—Alderman's OfficeCity 311
10/27/20265659 W PATTERSON AVEPortage Park38Open—Phone CallCity 311
10/27/20261705 W BELMONT AVELake View32Open—InternetCity 311
10/27/20265309 N LOCKWOOD AVEJefferson Park45Open—InternetCity 311
10/27/20262100 N KEDZIE AVELogan Square35Open—Phone CallCity 311
10/27/20266131 S NATOMA AVEClearing13Completed1 dayInternetCity 311
10/27/2026368 E 117TH STWest Pullman9Open—Phone CallCity 311
10/27/20261215 N MAPLEWOOD AVEWest Town26Open—Phone CallCity 311
10/27/20261559 N WELLS STNear North Side2Open—Phone CallCity 311
10/27/20263755 W 55TH STWest Elsdon23Open—InternetCity 311
10/27/20261456 N LUNA AVEAustin37Open—Phone CallCity 311
10/27/20266207 N TALMANWest Ridge50Open—Salesforce Mobile AppCity 311
10/27/20263837 W 56TH STWest Elsdon23Open—InternetCity 311
10/27/20265420 S HARDING AVEWest Elsdon23Open—InternetCity 311
10/27/20263350 N OAK PARK AVEDunning38Open—Alderman's OfficeCity 311
10/27/20266540 W IRVING PARK RDDunning38Open—Phone CallCity 311
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