RatCity — Chicago Rat and Rodent Sightings Map

RatCity

36 locations in the last day (41 reports) · Last sighting 16 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/29/20261668 W OGDEN AVENear West Side27Open—InternetCity 311
10/29/20265616 S THROOP STWest Englewood16Open—Phone CallCity 311
10/29/20262714 W WILCOX STEast Garfield Park27Open—InternetCity 311
10/29/20261621 N HUMBOLDT BLVDWest Town26Open—Phone CallCity 311
10/29/20262700 N MULLIGAN AVEBelmont Cragin36Completed1 dayPhone CallCity 311
10/29/20262714 N HALSTED STLincoln Park43Open—Mobile DeviceCity 311
10/29/20264954 N CHRISTIANA AVEAlbany Park33Open—InternetCity 311
10/29/20268047 S MORGAN STAuburn Gresham17Completed1 dayPhone CallCity 311
10/29/20261526 W THOMAS STWest Town1Open—InternetCity 311
10/29/20267029 W HENDERSON STDunning38Completed1 dayPhone CallCity 311
10/29/20264230 N MARMORA AVEPortage Park38Completed1 dayPhone CallCity 311
10/29/20261136 N WINCHESTER AVEWest Town1Open—Phone CallCity 311
10/29/20261056 N HARDING AVEHumboldt Park37Completed1 dayPhone CallCity 311
10/29/20265846 N ST LOUIS AVENorth Park39Open—Phone CallCity 311
10/29/202611204 S AVENUE OEast Side10Open—Phone CallCity 311
10/29/20264438 W WEST END AVEWest Garfield Park28Open—InternetCity 311
10/29/20261126 N AVERS AVEHumboldt Park37Completed1 dayPhone CallCity 311
10/29/20265409 S BISHOP STNew City20Open—Mobile DeviceCity 311
10/29/20265119 N WOLCOTT AVELincoln Square40Completed1 dayPhone CallCity 311
10/29/20263334 S CARPENTER STBridgeport11Open—Alderman's OfficeCity 311
10/29/20266035 S RHODES AVEWoodlawn20Open—Phone CallCity 311
10/29/20261740 W COLUMBIA AVERogers Park49Open—InternetCity 311
10/29/20261320H S FEDERAL STNear South Side3Open—InternetCity 311
10/29/20262033 W BIRCHWOOD AVERogers Park49Open—Mobile DeviceCity 311
10/29/2026163 N CLARK STLoop42Open—InternetCity 311
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