RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4259 locations in the last 30 days (4448 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 — 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

58,615 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/7/20256338 W NEWPORT AVEDunning30Completed3 daysPhone CallCity 311
6/26/20268649 W CATHERINE AVEO'Hare41Completed3 daysPhone CallCity 311
7/7/202610720 S WOOD STMorgan Park19Completed3 daysMobile DeviceCity 311
10/24/20253412 W 66TH STChicago Lawn14Completed3 daysPhone CallCity 311
11/14/20252914 W CHASE AVEWest Ridge50Completed3 daysInternetCity 311
10/7/20251711 S LAFLIN STLower West Side25Completed3 daysInternetCity 311
3/30/20262818 N FRANCISCO AVEAvondale35Completed3 daysMobile DeviceCity 311
10/31/2025531 W ADDISON STLake View46Completed3 daysInternetCity 311
5/30/20261207 N DEARBORN STNear North Side2Completed3 daysInternetCity 311
10/7/202510314 S JEast Side10Completed3 daysInternetCity 311
5/19/20263305 N KILDARE AVEIrving Park30Completed3 daysInternetCity 311
11/9/20256122 S LAFLIN STWest Englewood16Completed3 daysInternetCity 311
8/8/20252649 W BALMORAL AVELincoln Square40Completed3 daysPhone CallCity 311
4/3/20262608 S SHIELDS AVEArmour Square11Completed3 daysPhone CallCity 311
6/5/20263316 N NATCHEZ AVEDunning38Completed3 daysPhone CallCity 311
5/11/20269000 S ABERDEEN STWashington Heights21Completed3 daysPhone CallCity 311
5/15/20261971 N LINCOLN AVELincoln Park43Completed3 daysMobile DeviceCity 311
8/2/2026609 E 42ND STGrand Boulevard4Completed3 daysMobile DeviceCity 311
10/31/2025530 W 60TH PLEnglewood20Completed3 daysPhone CallCity 311
10/3/20256537 W 60TH PLClearing13Completed3 daysPhone CallCity 311
12/5/20251441 W WARNER AVELake View47Completed3 daysMobile DeviceCity 311
4/10/20268849 S CARPENTER STAuburn Gresham21Completed3 daysInternetCity 311
3/20/20264720 S ST LAWRENCE AVEGrand Boulevard3Completed3 daysPhone CallCity 311
3/13/20267340 N HARLEM AVEEdison Park41Completed3 daysPhone CallCity 311
4/6/20263212 W 65TH STChicago Lawn14Completed3 daysPhone CallCity 311
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