RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4105 locations in the last 30 days (4287 reports) · Last sighting yesterday

📰 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 — Nov 2–Nov 8, 2026

  • 🐀 948 new reports — down 7% from the week before
  • 👑 Lake View is Rat King with 67 reports
  • 📈 Biggest jump: Logan Square, up 15 from last week
  • 🏙️ The city took 9.7 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

59,989 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/20262323 N KENNETH AVEHermosa31Completed10 daysAlderman's OfficeCity 311
9/8/20253849 W 64TH PLWest Lawn23Completed10 daysPhone CallCity 311
10/24/20261308 W BYRON STLake View46Completed10 daysPhone CallCity 311
8/25/202655 W DELAWARE PLNear North Side2Completed10 daysAlderman's OfficeCity 311
8/15/20262516 W 69TH STChicago Lawn16Completed10 daysPhone CallCity 311
9/27/20262736 N KENMORE AVELincoln Park43Completed10 daysPhone CallCity 311
8/7/20265242 S FAIRFIELD AVEGage Park14Completed10 daysPhone CallCity 311
8/29/202510805 S RIDGEWAY AVEMount Greenwood19Completed10 daysAlderman's OfficeCity 311
9/23/20251845 W AUGUSTA BLVDWest Town36Completed10 daysMobile DeviceCity 311
9/20/20251721 W WRIGHTWOOD AVELincoln Park32Completed10 daysInternetCity 311
7/26/20257952 S MERRILL AVESouth Chicago8Completed10 daysPhone CallCity 311
9/16/20253145 N PAULINA STLake View32Completed10 daysInternetCity 311
6/26/20264327 N MOODY AVEPortage Park38Completed10 daysPhone CallCity 311
10/23/2026715 W 19TH PLLower West Side25Completed10 daysPhone CallCity 311
6/26/20264323 N MOODY AVEPortage Park38Completed10 daysPhone CallCity 311
9/27/20265142 N NEWCASTLE AVENorwood Park41Completed10 daysPhone CallCity 311
9/8/202524 E 91ST STChatham6Completed10 daysPhone CallCity 311
9/15/20255125 W NELSON STBelmont Cragin31Completed10 daysInternetCity 311
10/20/20266134 S MONITOR AVEClearing13Completed10 daysInternetCity 311
10/23/20265836 N ARTESIAN AVEWest Ridge40Completed10 daysInternetCity 311
9/2/20256840 S WABASH AVEGreater Grand Crossing6Completed10 daysPhone CallCity 311
8/15/20251615 W CHICAGO AVEWest Town1Completed10 daysMobile DeviceCity 311
7/22/20255435 W WARWICK AVEPortage Park30Completed10 daysMobile DeviceCity 311
9/15/20254905 W ARGYLE STForest Glen45Completed10 daysPhone CallCity 311
10/9/2026821 E 88TH PLChatham8Completed10 daysPhone CallCity 311
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