RatCity — Chicago Rat and Rodent Sightings Map

RatCity

43022 locations in the last year (44152 reports) · Last sighting 21 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/4/20265219 S LINDER AVEGarfield Ridge23Open—InternetCity 311
11/4/20261151 N CLEVELAND AVENear North Side27Open—Phone CallCity 311
11/4/20261231 S FAIRFIELD AVENorth Lawndale28Open—Mobile DeviceCity 311
11/4/20264337 W PARKER AVEHermosa31Open—Mobile DeviceCity 311
11/4/20263608 W GRACE STIrving Park30Open—Mobile DeviceCity 311
11/4/20265207 N POTAWATOMIE AVEO'Hare41Open—Phone CallCity 311
11/4/2026815 N PULASKI RDHumboldt Park37Completed1 dayPhone CallCity 311
11/4/20267113 S EUCLID AVESouth Shore5Completed1 dayPhone CallCity 311
11/4/20262055 N LAWLER AVEBelmont Cragin26Open—InternetCity 311
11/4/20266245 S KEDZIE AVEChicago Lawn14Open—Phone CallCity 311
11/4/20262225 W MEDILL AVELogan Square32Open—Mobile DeviceCity 311
11/4/20262656 W 42ND STBrighton Park12Completed1 dayPhone CallCity 311
11/4/20265000 W ROSCOE STPortage Park31Open—Phone CallCity 311
11/4/2026251 W 79TH STChatham17Open—InternetCity 311
11/4/2026916 W 50TH STNew City20Completed1 dayMobile DeviceCity 311
11/4/20266541 S BELL AVEChicago Lawn16Open—InternetCity 311
11/4/20265523 S MASON AVEGarfield Ridge13Open—InternetCity 311
11/4/20262533 W FARRAGUT AVELincoln Square40Open—InternetCity 311
11/4/20264840 W WASHINGTON BLVDAustin28Open—Phone CallCity 311
11/4/20261454 W MORSE AVERogers Park49Open—Alderman's OfficeCity 311
11/4/20261708 W EDMAIRE STMorgan Park21Open—Phone CallCity 311
11/4/20261501 W MORSE AVERogers Park49Open—Phone CallCity 311
11/4/20266222 W 64TH STClearing13Completed2 daysInternetCity 311
11/4/20262063 N LATROBE AVEBelmont Cragin36Open—Mobile DeviceCity 311
11/4/20262624 W NORTH AVEWest Town26Open—Alderman's OfficeCity 311
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