RatCity — Chicago Rat and Rodent Sightings Map

RatCity

2 locations in the last day · Last sighting 24 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

59,088 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/26/20262047 N DAYTON STLincoln Park43Open—Mobile DeviceCity 311
10/26/20267500 S WOOD STAuburn Gresham17Open—Phone CallCity 311
10/26/202610922 S WASHTENAW AVEMorgan Park19Open—Mobile DeviceCity 311
10/26/20267950 W ADDISON STDunning38Completed7 daysInternetCity 311
10/26/20266650 S WABASH AVEGreater Grand Crossing6Open—InternetCity 311
10/26/20266649 S WABASH AVEGreater Grand Crossing6Open—InternetCity 311
10/26/20261309 N ASHLAND AVEWest Town1Open—InternetCity 311
10/26/20265454 S EVERETT AVEHyde Park5Open—InternetCity 311
10/26/20262008 S ALLPORT STLower West Side25Open—InternetCity 311
10/26/20268346 S BRANDON AVESouth Chicago10Completed0 daysMobile DeviceCity 311
10/26/20265137 S LOTUS AVEGarfield Ridge23Open—Phone CallCity 311
10/26/20263835 N PAULINA STLake View47Open—InternetCity 311
10/26/20263835 N MARSHFIELD AVELake View47Open—InternetCity 311
10/26/20263834 N MARSHFIELD AVELake View47Open—InternetCity 311
10/26/20264406 W WILSON AVEIrving Park39Open—InternetCity 311
10/26/20265140 W ALTGELD STBelmont Cragin31Completed9 daysInternetCity 311
10/26/202612234 S PRINCETON AVEWest Pullman9Completed9 daysInternetCity 311
10/26/2026247 N KILPATRICK AVEAustin28Open—InternetCity 311
10/26/20261533 W CHICAGO AVEWest Town1Completed7 daysInternetCity 311
10/25/20266135 W PATTERSON AVEDunning38Completed9 daysMobile DeviceCity 311
10/25/2026820 N CALIFORNIA AVEWest Town36Completed1 dayMobile DeviceCity 311
10/25/20264756 S INDIANA AVEGrand Boulevard3Open—Mobile DeviceCity 311
10/25/20265216 S BLACKSTONE AVEHyde Park4Completed3 daysInternetCity 311
10/25/20265120 S LUNA AVEGarfield Ridge23Open—InternetCity 311
10/25/20265111 S KILPATRICK AVEGarfield Ridge23Open—InternetCity 311
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