RatCity — Chicago Rat and Rodent Sightings Map

RatCity

43013 locations in the last year (44143 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

59,447 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/3/20261212 N HOYNE AVEWest Town1Open—Phone CallCity 311
11/3/20262044 W HADDON AVEWest Town1Open—InternetCity 311
11/3/20261441 W FARWELL AVERogers Park49Completed2 daysPhone CallCity 311
11/3/20267500 S CONSTANCE AVESouth Shore8Open—Phone CallCity 311
11/3/20265311 W WARNER AVEPortage Park38Open—Phone CallCity 311
11/3/20264505 N ALBANY AVEAlbany Park33Open—InternetCity 311
11/3/20261833B W NORWOOD STWest Ridge40Open—Phone CallCity 311
11/3/20263056 W SUNNYSIDE AVEAlbany Park33Open—InternetCity 311
11/3/20262851 W SUMMERDALE AVELincoln Square39Open—Mobile DeviceCity 311
11/3/20263617 N PAULINA STLake View47Open—InternetCity 311
11/3/20262310 N LINCOLN AVELincoln Park43Open—Mobile DeviceCity 311
11/3/20261543 W SHERWIN AVERogers Park49Open—Mobile DeviceCity 311
11/3/20266448 N NASHVILLE AVENorwood Park41Open—Mobile DeviceCity 311
11/3/20261464 S MICHIGAN AVENear South Side3Open—InternetCity 311
11/3/20261632 N KEDVALE AVEHumboldt Park26Open—Alderman's OfficeCity 311
11/3/20263000 W SCHOOL STAvondale33Open—Mobile DeviceCity 311
11/3/202610753 S DRAKE AVEMount Greenwood19Open—Mobile DeviceCity 311
11/3/20265227 S NATCHEZ AVEGarfield Ridge23Open—Alderman's OfficeCity 311
11/3/202611725 S INDIANA AVEWest Pullman9Open—Mobile DeviceCity 311
11/3/20261648 S AVERSNorth Lawndale24Open—Salesforce Mobile AppCity 311
11/3/20264108 N KEYSTONE AVEIrving Park39Completed2 daysInternetCity 311
11/3/20262800 N SEMINARY AVELake View44Open—Mobile DeviceCity 311
11/3/2026548 W DIVISION STNear North Side27Open—InternetCity 311
11/3/2026553 N PINE AVEAustin37Completed0 daysInternetCity 311
11/3/20266721 S PRAIRIE AVEGreater Grand Crossing6Completed2 daysPhone CallCity 311
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