RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4244 locations in the last 30 days (4427 reports) · Last sighting 22 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

59,238 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/1/20265717 S MOODY AVEGarfield Ridge13Completed2 daysInternetCity 311
6/1/20265350 W ARGYLE STJefferson Park45Completed3 daysMobile DeviceCity 311
6/1/20265232 S MOODY AVEGarfield Ridge23Completed2 daysInternetCity 311
6/1/20265234 S MOODY AVEGarfield Ridge23Completed2 daysInternetCity 311
6/1/202610430 S PARNELL AVERoseland21Completed1 dayPhone CallCity 311
6/1/20265701 S NEENAH AVEGarfield Ridge13Completed2 daysPhone CallCity 311
6/1/20265633 W ADDISON STPortage Park30Completed4 daysMobile DeviceCity 311
6/1/20264210 S EMERALD AVENew City11Completed1 dayPhone CallCity 311
6/1/20264455 N HERMITAGE AVEUptown47Completed2 daysPhone CallCity 311
6/1/20266340 W 63RD PLClearing13Completed2 daysPhone CallCity 311
6/1/20263805 W 66TH STWest Lawn23Completed2 daysPhone CallCity 311
6/1/20267321 S HERMITAGE AVEWest Englewood17Completed2 daysPhone CallCity 311
6/1/20263015 S SPRINGFIELD AVESouth Lawndale22Completed1 dayInternetCity 311
6/1/20265610 S PRAIRIE AVEWashington Park20Completed2 daysPhone CallCity 311
6/1/20265011 W BYRON STPortage Park30Completed4 daysPhone CallCity 311
6/1/20262626 W 63RD STChicago Lawn16Completed2 daysPhone CallCity 311
6/1/20266310 W PATTERSON AVEDunning38Completed3 daysPhone CallCity 311
6/1/20263156 W 83RD PLAshburn18Completed1 dayAlderman's OfficeCity 311
6/1/20261640 W BERWYN AVEEdgewater40Completed3 daysMobile DeviceCity 311
6/1/20263729 W MARQUETTE RDWest Lawn23Completed2 daysPhone CallCity 311
6/1/20261622 W BERWYN AVEEdgewater40Completed3 daysMobile DeviceCity 311
6/1/20265730 N FAIRFIELD AVEWest Ridge40Completed3 daysInternetCity 311
6/1/20261328 W 97TH PLWashington Heights21Completed1 dayInternetCity 311
6/1/20264128 N PONTIAC AVEDunning38Completed3 daysMobile DeviceCity 311
6/1/20261645 W 83RD STAuburn Gresham18Completed1 dayAlderman's OfficeCity 311
Page 979 of 2,370
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