RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4276 locations in the last 30 days (4465 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

1,021 reports match your filters.

Clear filters
DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/26/20265272 N CICERO AVEForest Glen39Open—Phone CallCity 311
10/26/202610823 S ALBANY AVEMount Greenwood19Open—Phone CallCity 311
10/26/20265221 N MEADE AVEJefferson Park45Completed4 daysPhone CallCity 311
10/26/20262634 W SUMMERDALE AVELincoln Square40Open—InternetCity 311
10/26/20262256 N KOSTNER AVEHermosa26Open—Alderman's OfficeCity 311
10/26/20264534 N KARLOV AVEAlbany Park39Open—InternetCity 311
10/26/2026869 N MOZART STWest Town36Completed1 dayInternetCity 311
10/26/20265435 N ARTESIAN AVELincoln Square40Completed7 daysPhone CallCity 311
10/26/20261539 N CLAREMONT AVEWest Town1Open—InternetCity 311
10/26/20266117 S MEADE AVEClearing13Open—InternetCity 311
10/26/20264511 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Open—Phone CallCity 311
10/26/20264241 N MOZART STIrving Park33Open—InternetCity 311
10/26/20263853 N ST LOUIS AVEIrving Park35Open—Mobile DeviceCity 311
10/26/20265230 S WOODLAWN AVEHyde Park5Open—Phone CallCity 311
10/26/20264135 N MARMORA AVEPortage Park38Completed1 dayPhone CallCity 311
10/26/20263429 N PARIS AVEDunning38Completed1 dayPhone CallCity 311
10/26/20261230 E 46TH STKenwood4Completed3 daysPhone CallCity 311
10/26/20265140 W SCHUBERT AVEBelmont Cragin31Open—Alderman's OfficeCity 311
10/26/20261123 W 17TH STLower West Side25Open—Phone CallCity 311
10/26/20262326 N SAWYERLogan Square35Open—Salesforce Mobile AppCity 311
10/26/202610136 S NORMAL AVEWashington Heights9Completed1 dayPhone CallCity 311
10/26/20268030 S PEORIA STAuburn Gresham17Open—Alderman's OfficeCity 311
10/26/202612439 S UNION AVEWest Pullman9Completed1 dayPhone CallCity 311
10/26/20267351 N HOYNE AVERogers Park49Completed1 dayPhone CallCity 311
10/26/20267152 S CAMPBELL AVEChicago Lawn17Open—Phone CallCity 311
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