RatCity — Chicago Rat and Rodent Sightings Map

RatCity

42969 locations in the last year (44098 reports) · Last sighting 2 days 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
10/8/20261432 N BOSWORTH AVEWest Town1Completed14 daysInternetCity 311
10/8/20264300 N HERMITAGE AVELake View47Completed15 daysPhone CallCity 311
10/8/20265853 N KILBOURN AVEForest Glen39Completed1 dayPhone CallCity 311
10/8/20267038 S EMERALD AVEEnglewood6Completed13 daysPhone CallCity 311
10/8/20266448 S PARNELL AVEEnglewood6Completed13 daysPhone CallCity 311
10/8/20266450 S PARNELL AVEEnglewood6Completed13 daysPhone CallCity 311
10/8/20267439 S MICHIGAN AVEGreater Grand Crossing6Completed13 daysPhone CallCity 311
10/8/20264832 W CATALPA AVEForest Glen39Completed1 dayInternetCity 311
10/8/20261330 N GREENVIEW AVEWest Town1Completed14 daysMobile DeviceCity 311
10/8/20266020 N RAVENSWOOD AVEWest Ridge40Completed1 dayPhone CallCity 311
10/8/20264234 W WEST WEST END AVEWest Garfield Park28Completed12 daysPhone CallCity 311
10/8/20261242 N NOBLE STWest Town1Completed1 dayPhone CallCity 311
10/8/20261622 N LASALLE DRLincoln Park2Completed1 dayPhone CallCity 311
10/8/20262126 W MOFFAT STLogan Square32Completed1 dayPhone CallCity 311
10/8/20261934 W WABANSIA AVEWest Town32Completed1 dayPhone CallCity 311
10/8/20261651 N LONG AVEAustin37Completed13 daysPhone CallCity 311
10/8/20262205 N MAJOR AVEBelmont Cragin36Completed14 daysAlderman's OfficeCity 311
10/8/20261126 N AVERS AVEHumboldt Park37Completed13 daysPhone CallCity 311
10/8/20265271 N NORTHWEST HWYJefferson Park45Completed8 daysPhone CallCity 311
10/8/20262717 W AGATITE AVEAlbany Park40Completed14 daysPhone CallCity 311
10/8/20262205 N MAJOR AVEBelmont Cragin36Completed14 daysPhone CallCity 311
10/8/20263904 N NORA AVEDunning38Completed20 daysMobile DeviceCity 311
10/8/20266043 W 59TH STClearing13Completed12 daysMobile DeviceCity 311
10/8/20264922 N SPAULDING AVEAlbany Park33Completed14 daysInternetCity 311
10/8/20267409 S INDIANA AVEGreater Grand Crossing6Completed13 daysPhone CallCity 311
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